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Journal articles on the topic 'Seed Rate and Yield'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

ABLETT, GARY. "EFFECT OF SEEDING RATE AND HARVEST METHOD ON AGRONOMIC CHARACTERISTICS OF WHITE BEAN." Canadian Journal of Plant Science 68, no. 3 (1988): 801–4. http://dx.doi.org/10.4141/cjps88-094.

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Kentwood white bean (Phaseolus vulgaris L.) was sown at three seeding rates in narrow rows for 4 yr With direct-harvesting, yields increased as seeding rates increased up to 64 seeds m−2, whereas, with hand-harvesting seed yield was not affected. Seed quality was superior in the direct-harvested plots; however, yield was lower. Seed size was not affected.Key words: White bean, narrow-row, yield, seed quality

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Stevenson, F. C., and A. T. Wright. "Seeding rate and row spacing affect flax yields and weed interference." Canadian Journal of Plant Science 76, no. 3 (1996): 537–44. http://dx.doi.org/10.4141/cjps96-098.

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Seeding rate and row spacing are management practices that affect flax seed yield. Two experiments were conducted from 1988 to 1990 to determine the influence of flax seeding rates (300, 600, and 900 seeds m−2) and row spacings (9, 18, and 27 cm). One was a flax-weed interference study (three sites) and the other was a weed-free study (13 sites). In the presence of weeds, increasing seeding rate from 300 to 900 seeds m−2 improved flax seed yield by 180 kg ha−1, and reduced broadleaf weed yields by 300 kg ha−1 and grassy weed yields by 180 kg ha−1. In weed-free conditions, seed yield was not af

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3

Rahman, Md Moshiur, Taslima Zahan, MS Ali, M. Begum, and RW Bell. "Effect of Variety and Seed Rate on Yield Performance of Mungbean Under Strip Tillage System." Bangladesh Agronomy Journal 19, no. 1 (2016): 81–86. http://dx.doi.org/10.3329/baj.v19i1.29874.

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A study was conducted at Bangladesh Agricultural University, Mymensingh during March-June, 2013 to evaluate the performance of mungbean varieties and to determine the optimum seed rate under strip tillage system. Three mungbean varieties (BARI Mung-6, Binamung-5 and Binamung-8) were tested against five seeding rates (20, 25, 30, 35 and 40 kg ha-1). The experiment was laid out in splitplot design with three replications. The study revealed that variety and seed rate had significant effect on plant population, pods plant-1, pod length, seeds pod-1, seed yield and stover yield of mungbean. The hi

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Teich, A. H., T. Welacky, A. Hamill, and A. Smid. "Row-spacing and seed-rate effects on winter wheat in Ontario." Canadian Journal of Plant Science 73, no. 1 (1993): 31–35. http://dx.doi.org/10.4141/cjps93-005.

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This study was carried out to determine if winter wheat in southwestern Ontario should be grown in rows narrower than the conventional 18 cm and if the current recommended seed rate of 3.2 million seeds ha−1 (msh) is adequate. We compared the effect of 10- and 20-cm row spacings and 1.6, 3.2, and 6.4 msh seed rates on grain yield, weed growth and yield of underseeded clover. Row spacing at a constant seed rate did not affect yield. With increasing seed rate there was an increase in yield, mainly through more heads per unit area, which more than compensated for a decrease in seeds per head. Nar

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Sarker, R., M. A. Khan, M. H. Rahman, M. M. Rahman, and M. Ratna. "Effect of Seed Rate and Sowing Method on Seed Yield of Fennel." Asian Journal of Research in Crop Science 8, no. 4 (2023): 522–28. http://dx.doi.org/10.9734/ajrcs/2023/v8i4233.

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The present study was carried out at the research field of Spices Research Sub-Centre, Faridpur during Rabi season 2018-19. The experiment was done to determine the optimum seed rate and suitable sowing method for fennel cultivation to increase seed yield and quality of fennel. The experimental field belongs to high land of Low Ganges River Floodplain (AEZ 12) with clay loam in texture having 7.6-8.1 soil pH. The experiment was laid out in a Randomized Complete Block Design (factorial) with three replications. Four different seed rates viz., 6, 8, 10 and 12 kg seed/ha and two sowing methods vi

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Pospišil, Ana, and Milan Pospišil. "Soybean Yield and Yield Components Depending on Sowing Rate and Sowing Date." Poljoprivreda 30, no. 2 (2024): 10–16. https://doi.org/10.18047/poljo.30.2.2.

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A research on the influence of a sowing date on the soybean yield and the yield of its components was carried out at the Experimental Site of the Faculty of Agriculture of the University of Zagreb during 2019 and 2020. The study involved two soybean varieties, the AFZG Ana (maturity group 0) and Gabriela (maturity group 00-0), sown on the two sowing dates (i.e., an optimal and a late one) and three sowing rates: 40, 65, and 90 germinating seeds m-2. The sowing time did not have a significant effect on the soybean seeds’ yield and the yield of their components. In both research years, the Gabri

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Johnston, A. M., G. W. Clayton, G. P. Lafond, et al. "Field pea seeding management." Canadian Journal of Plant Science 82, no. 4 (2002): 639–44. http://dx.doi.org/10.4141/p02-001.

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The impact of seed placement and seeding rate on crop yield is not clearly understood for field pea (Pisum sativum L.). A field experiment was conducted at Melfort, SK, and Lacombe, AB, in 1998 and 1999, to evaluate the effect of three seed placements (distinct row: 23 cm and 30 cm with a hoe opener; and spread band: a 20-cm spread using a 28-cm sweep on a 23-cm row spacing) and three seeding rates (50, 100, and, 150 seeds m-2) on pea seedling density, seed yield and seed weight of a leafy prostrate and semi-leafless upright cultivar. A follow-up experiment was conducted at seven sites across

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Eshete, Yirgalem, Bamlaku Alamirew, and Zewdie Bishaw. "Yield and Cost Effects of Plot-Level Wheat Seed Rates and Seed Recycling Practices in the East Gojam Zone, Amhara Region, Ethiopia: Application of the Dose–Response Model." Sustainability 13, no. 7 (2021): 3793. http://dx.doi.org/10.3390/su13073793.

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Previous studies investigated the effects of seed rates and seed recycling practices on the yield and yield-related variables. However, higher yield does not always guarantee cost-efficiency. This study aimed to investigate the yield effects of plot-level seed rate and the cost–benefit analysis of seed recycling practices. This study has introduced the dose–response model to the existing analytical methods used in analyzing the effect of different agrochemicals on crop yield. A multi-stage stratified sampling technique was used to select a total of 450 sample respondents. Data were gathered us

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9

May, W. E., H. A. Loeppky, D. C. Murrell, C. D. Myhre, and J. J. Soroka. "Preharvest glyphosate in alfalfa for seed production: Effect on alfalfa seed yield and quality." Canadian Journal of Plant Science 83, no. 1 (2003): 189–97. http://dx.doi.org/10.4141/p01-196.

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Preharvest applications of glyphosate have been shown to be effective in controlling Canada thistle in annual crops, but may reduce alfalfa seed yield depending on time and rate of application. The objective of this study was to determine the effect of preharvest applications of glyphosate on subsequent alfalfa seed yield and quality. The effects of timing, 1, 26, 51 and 76% alfalfa seed pod maturity, and rate, 0, 440, 880, 1320, and 1760 g a.i. ha-1, of a preharvest application of glyphosate on alfalfa seed yield and quality in the year of application, and regrowth and seed yield in the follo

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Neugschwandtner, Reinhard W., Georg Dobos, Helmut Wagentristl, Tomáš Lošák, Agnieszka Klimek-Kopyra, and Hans-Peter Kaul. "Yield and Yield Components of Winter Poppy (Papaver somniferum L.) Are Affected by Sowing Date and Sowing Rate under Pannonian Climate Conditions." Agriculture 13, no. 5 (2023): 997. http://dx.doi.org/10.3390/agriculture13050997.

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Poppy cultivation has a long tradition in Central Europe. Growing winter poppy instead of the commonly grown spring poppy might increase seed yield, especially in the face of changing climatic conditions. However, knowledge regarding optimum sowing date and optimum sowing rate for winter poppy under Pannonian climate conditions in Central Europe is missing. Therefore, a two-year field experiment was performed in Eastern Austria with four sowing dates ranging from early September to mid/end of October and two sowing rates with 50 or 100 mg seeds m−2. Seed yields were considerably higher than va

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Egli, D. B. "The role of seed in the determination of yield of grain crops." Australian Journal of Agricultural Research 57, no. 12 (2006): 1237. http://dx.doi.org/10.1071/ar06133.

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The seed is the harvested organ in grain crops and, consequently, the accumulation of dry matter by the seed is an important component of the yield production process. The growth of individual seeds, usually characterised by the rate and duration of growth, is, at least partially, controlled by the seed itself. It is this control that gives the seed a significant role in the yield production process. Genetic variation in seed growth rate, which is substantial, is not related to yield, but variation related to environmental conditions during seed filling often is. Genetic and environmental vari

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12

EASSON, D. L., and R. M. MOLLOY. "A study of the plant, fibre and seed development in flax and linseed (Linum usitatissimum) grown at a range of seed rates." Journal of Agricultural Science 135, no. 4 (2000): 361–69. http://dx.doi.org/10.1017/s0021859699008400.

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A comparison of the fibre and seed development in fibre flax and linseed types of Linum usitatissimum (L.) was carried out in replicated field plot experiments in 1993, 1994 and 1996 in Northern Ireland. Flax cultivar Ariane, and linseed cultivars Barbara (1993 and 1996) and Flanders (1994) were each grown at seed rates of 500, 1000 and 1500 seeds/m2 and sampled at 7-day intervals from the start of flowering until harvest. The number of buds, flowers and capsules per plant were counted and straw height and total, seed, straw, total fibre, long fibre and short fibre dry matter ( DM) yields dete

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Rochester, Ian J., and G. A. Constable. "Nitrogen-fertiliser application effects on cotton lint percentage, seed size, and seed oil and protein concentrations." Crop and Pasture Science 71, no. 9 (2020): 831. http://dx.doi.org/10.1071/cp20288.

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In order to develop a better understanding of some yield components, the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application was assessed for lint percentage (LP) and seed weight, as well as seed protein and oil concentrations. Application of N fertiliser led to decreased LP in all three cultivars (by 1.5 percentage points), even if the N-fertiliser rate was above the optimum rate. There was a strong negative correlation between LP and seed mass because seed mass is a component of LP. Seed protein concentration increased, and seed

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14

Danladi, S., Garba, A.A., and Sabo, M.U. "EFFECT OF SEED SOWING TYPE AND SEED RATE ON THE PRODUCTIVITY OF FONIO (Digitaria exilis L.) IN BOGORO, BAUCHI STATE, NIGERIA." Nigerian Journal of Agriculture and Agricultural Technology 5, no. 1A (2025): 139–56. https://doi.org/10.59331/njaat.v5i1a.978.

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Field experiment was conducted during the cropping seasons of 2017 and 2018 at the research farm of Bauchi State Agricultural Development Programme sub-zonal headquarters Bogoro, Bauchi State to determine the effect of seed sowing type and seed rate on the productivity of fonio (Digiteria exilis). The treatment consist of two seed sowing types (pure seed and seed mixed with sand) using broadcasting method and five different seed rates (50, 60, 70, 80 and 90kgha-1). The two seed sowing type and five seed rates were factorially combined and laid out in a randomized complete block design (RCBD) w

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Sanjyal, Sunita, John G. Hampton, Phil Rolston, and Santosh Marahatta. "Teosinte (Euchlaena mexicana L.) Seed Production: Effect of Sowing Date, Seed Rate and Cutting Management on Seed Yield." Agronomy 12, no. 7 (2022): 1646. http://dx.doi.org/10.3390/agronomy12071646.

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Teosinte (Euchlaena mexicana L.) is a popular herbage crop in Nepal. Although farmers produce teosinte seeds, management for maximizing seed yield is unknown. A study was undertaken to investigate teosinte seed yield in order to explore the seed production potential of teosinte for maximizing herbage yield. There were four different sowing dates (30 March, 30 April, 30 May and 30 June), four seed rates (20, 40, 60 and 80 kgha−1) and three herbage cuttings (nil, once at 45 days after sowing (DAS), twice at 45 and 75 DAS) arranged in a split-split plot design. In both years, the highest seed yie

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SAHRAMAA, M., and L. HÖMMÖ. "Seed production characters and germination performance of reed canary grass in Finland." Agricultural and Food Science 9, no. 3 (2000): 239–51. http://dx.doi.org/10.23986/afsci.5665.

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Production of reed canary grass (Phalaris arundinacea L.) seed in Finland may be of interest in the near future. Seed production characters of cultivars Palaton and Venture were studied between 1995 and 1998 at Jokioinen. Effects of harvest time on seed yield, thousand seed weight and seed germination were evaluated for 'Palaton'. Seed yield varied from 2 to 432 kg ha-1, being only 100 kg ha-1 on average. In the years of highest seed yields the optimum harvest time was 15 days after complete anthesis. At that time high seed yield was associated with a low proportion of shattered seeds and high

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GOODING, M. J., A. PINYOSINWAT, and R. H. ELLIS. "Responses of wheat grain yield and quality to seed rate." Journal of Agricultural Science 138, no. 3 (2002): 317–31. http://dx.doi.org/10.1017/s0021859602002137.

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Four field experiments were conducted to investigate the effects of seed rate on yield and quality of wheat. Despite some small and inconsistent effects of seed rate on radiation-use efficiency and harvest index, the responses of PAR interception, above-ground biomass and grain yield generally followed similar asymptotic increases as seed rate increased. In one experiment, when nitrogen fertilizer was withheld, biomass and grain yields did not respond to increases in seed rate despite increases in PAR interception. In one experiment, grain yield followed a parabolic response to seed rate with

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18

Ahadiyat, Yugi Rahayu, Sapto Nugroho Hadi, and Okti Herliana. "Karakter Morfo-fisiologi dan Hasil Padi Gogo Toleran Kekeringan." Jurnal Ilmu Pertanian Indonesia 25, no. 3 (2020): 462–67. http://dx.doi.org/10.18343/jipi.25.3.462.

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The objective of this study was to obtain varieties with high yield along with proper morpho-physiological characters under drought condition. Eleven varieties of upland rice i.e., Gilirang, Situ Patenggang, Kalimutu, Aek Sibundong, Batutegi, Towuti, Sunggal, Danau Gaung, Way Apo Buru, Danau Tempe, and Situ Bagendit were characterized based on morphology, physiology, and yield. Non factorial Complete Randomized Block Design was used with three times repetition. Parameters measured were morphological characters, physiological characters, and yield components. Morphological characters measured w

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Fairey, N. A., and L. P. Lefkovitch. "Effect of seeding rate on seed production of perennial ryegrass after establishment with a grain companion crop in the Peace River region of north-western Canada." Canadian Journal of Plant Science 81, no. 2 (2001): 265–71. http://dx.doi.org/10.4141/p00-021.

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A field study in the Peace River region of north-western Canada evaluated the effect of seeding rate on the seed yield and quality of perennial ryegrass (Lolium perenne L.) in the year after establishment with a grain companion crop. Each of two sites was sown with 70 kg ha–1 barley (Hordeum vulgare L.) and under-sown, in 30-cm rows, with three cultivars (All*Star, Barclay and Repell) of diploid perennial ryegrass at seeding rates of 150, 300, 600, 1200, 2400 and 4800 viable seeds m–2. During the establishment year of the perennial ryegrass, the grain yield of the barley companion crop was com

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MEENAKSHI GUPTA, SARABDEEP KOUR, CHARU SHARMA, and DILEEP KACHROO. "Effect of sowing environments and genotypes on growth and yield of linseed (Linum usitatissimum)." Indian Journal of Agronomy 61, no. 2 (2001): 237–41. http://dx.doi.org/10.59797/ija.v61i2.4354.

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An experiment was conducted during the winter (rabi) season of 201011 and 201112 at Chatha, Jammu, to study the effect of genotypes and sowing time on yield, yield components and development rates of linseed (Linum usitatissimum L.). The treatments comprised of 4 sowing dates, viz. 20 October, 30 October, 10 November and 20 November in main plots and 4 varieties (LC 2023, LC 2063, LC 54 and Local variety) in sub-plots, rep- licated thrice in a split-plot design. Sowing dates as well as varieties significantly affected growth characters; yield attributes and yields in both the years. Sowing on

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Sapra, Love, S. K. Tehlan, Tejinder Singh, Lila Bora, and Bichhinna Maitri Rout. "Effect of Seed Rate and Nutrition Level on Growth and Seed Yield of Trigonella corniculata L." Environment and Ecology 41, no. 3D (2023): 2135–44. http://dx.doi.org/10.60151/envec/zkpu1507.

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Optimum quantity of seed rate and fertilizers are required to enhance the growth and increase the production is need of the day. Consequently, an experiment was conducted at CCS Haryana Agricultural University, Hisar during rabi season to study the effect of seed rate levels and fertilizer levels on coriander. The uppermost value for plant height, pod length, number of branches per plant, number of pods per plant and number of seeds per pod were recorded with seed rate of 7.5 kg/ha. The maximum value for plant height, pod length, number of seeds per pod, and biological yield was recorded with

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Wasie, Tilaye Anbes, and Belayneh Shibie. "Effects of Seed Rate on Seed Multiplication Ratio, Seed Quality And Yield of Malt Barley Seed Classes Under Irrigated Conditions in Northwest Amhara." Journal of Tropical Crop Science 11, no. 01 (2024): 1–8. http://dx.doi.org/10.29244/jtcs.11.01.1-8.

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Field experiments were conducted to identify seed rate enhancing seed multiplication ratio, seed quality and yield on Ibone (174/03) malt barely variety performance in Koga district during 2019 and 2020 irrigation seasons. Three seed classes (breeder, pre-basic and basic seeds) and seed rates (40, 60, 80 and 100 kg.ha-1) were compared. The experimental design randomized complete block in factorial arrangement with three replications. Analysis of variance was showed that the interaction effect of seed class and seed rate was not significant (P>0.05) for the parameters of days to maturity, pl

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Singh, Sumeet Kumar, Sarita Kumari, YS Shivay, Monika A. Joshi, and BS Tomar. "Effect of date, method of sowing and seed rate on growth, yield and seed quality attributes in garden pea." Vegetable Science 45, no. 02 (2018): 220–25. http://dx.doi.org/10.61180/zp08d739.

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The effect of date of sowing (15th October, 5th November and 25th November), method of sowing (Raised bed and flatbed) and seed rate (100, 112.5 and 125 kg/ha) was evaluated on growth, yield and seed quality attributes in garden pea cv. Pusa Pragati under field conditions. Date of sowing significantly affected the growth, yield and seed quality parameters. Sowing on 15th October (DOS 1) resulted in earliest emergence and days taken to initiate flowering whereas sowing on 25th November (DOS 3) needed longest duration for both these characters. Plant height and number of primary branches per pla

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Worku, Bedeke. "Determination of Optimum seed rate for increased Dry matter and seed yield of fodder oat in Dara district of Sidama region, Southern Ethiopia." Journal of Agriculture and Aquaculture 4, no. 3 (2022): 1–5. https://doi.org/10.5281/zenodo.7029169.

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<strong>Abstract</strong> Introduction of high yielding cross bred dairy cattle in the farming system is pushing farming communities to produce high yielding forage crops. The experiment was conducted in 2017 and 2018 cropping seasons for two years at Abera sheep type improvement sub-station with the objective to determine optimum seed rate for high herbage and seed yield. The trial was carried out in randomized complete block design (RCBD) with four replications. Seed rates of 50, 75, 100, 125 and 150 kg/ha were used as treatments. Plant height, stem to leaf ration, DM yield, seed yield and s

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Worku, Bedeke*. "Determination of Optimum seed rate for increased Dry matter and seed yield of fodder oat in Dara district of Sidama region, Southern Ethiopia." Journal of Agriculture and Aquaculture 4, no. 3 (2022): 1–5. https://doi.org/10.5281/zenodo.7052735.

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<strong>Abstract</strong> Introduction of high yielding cross bred dairy cattle in the farming system is pushing farming communities to produce high yielding forage crops. The experiment was conducted in 2017 and 2018 cropping seasons for two years at Abera sheep type improvement sub-station with the objective to determine optimum seed rate for high herbage and seed yield. The trial was carried out in randomized complete block design (RCBD) with four replications. Seed rates of 50, 75, 100, 125 and 150 kg/ha were used as treatments. Plant height, stem to leaf ration, DM yield, seed yield and s

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Kaur, Maninder, U. S. Tiwana, and Sukhpreet Singh. "Seed yield response of fodder oat varieties to row spacing and seed rate in north-west parts of India." Range Management and Agroforestry 44, no. 02 (2023): 323–28. http://dx.doi.org/10.59515/rma.2023.v44.i2.14.

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Oat (Avena sativa L.) is an important rabi cereal fodder crop of north-west India. Recently, a number of fodder oat varieties have been released in country-wide adaptability. However, limited information on optimal row spacing and seed rate for these fodder oat varieties in seed production system is available especially in the north-western parts of the country, where it is primarily grown for fodder purpose. Hence, field experiments were conducted during winter season from 2016-17 to 2019-20 to evaluate the effects of row spacing and seed rate on growth, yield attributes and seed yield of two

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Wang, Yan, Jingjing Wang, Dali Chen, Zhenning Hui, and Xiaowen Hu. "Shade Increased Seed Yield and Quality of Incarvillea sinensis var. przewalskii." Plants 12, no. 16 (2023): 2934. http://dx.doi.org/10.3390/plants12162934.

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Incarvillea sinensis var. przewalskii has attracted great attention because of the anticancer value of its alkaloids and the potential use of the species for ecological restoration. However, the scarcity of high-quality seeds has significantly hindered the cultivation and efficient utilization of this species. Understanding how seeds respond to maternal environmental conditions is crucial for developing high-yield and top-notch seed accessions, but the available knowledge in this area is limited. Here, we determined the effect of shading treatments on seed development, seed quality, and yield.

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Vuckovic, Savo, Aleksandar Simic, Branko Cupina, Ivana Stojanovic, and R. Stanisavljevic. "The effect of vegetation area size on grass seed yield." Journal of Agricultural Sciences, Belgrade 48, no. 1 (2003): 125–34. http://dx.doi.org/10.2298/jas0301125v.

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This paper surveys sowing norms (row spacing and seed rate) in both our country and the world, as well as the optimal seed rates in grass seed production. It gives a short overview of row spacings and seed rates applied in our and some other countries. Earlier, grass cultivated for the purpose of seed production was grown on small vegetation area. According to some researches, high seed yields can be achieved by cultivating grass on large vegetation area. Based on the results obtained, it can be concluded that the highest cocksfoot, timothy, meadow fescue, tall fescue seed yield was achieved w

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Polishchuk, Valentine, David Konovalov, and Anna Brovdi. "Seed Productivity of Winter Wheat Depending on Sowing Dates and Seeding Rates." Grassroots Journal of Natural Resources 7, no. 2 (2024): 83–95. http://dx.doi.org/10.33002/nr2581.6853.070204.

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This article describes the formation of seed yields and seed quality depending on the timing of sowing and seeding rates. On average, over three years, seed yields significantly decreased when sown at late sowing dates compared to the optimal date of September 25. The influence of the “sowing time” factor on seed yield was the largest and amounted to 86.6%, while the influence of the “seeding rate” factor was insignificant and amounted to only 4.3%. It was found that the germination energy and germination rate of seeds did not change significantly depending on the sowing date and seeding rate

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Bebawi, F. F., and A. E. Mazloum. "Effects of Sowing Pattern and Seed Rate on Green-chop Yield of Forage Sorghum." Experimental Agriculture 22, no. 3 (1986): 301–6. http://dx.doi.org/10.1017/s0014479700014472.

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SUMMARYThe effects of sowing pattern and seed rate on the green-chop yield of forage sorghum-sudangrass hybrid (cv. Pioneer 988) and forage sorghum (cv. Abu Sabeen) were investigated. In general, more green-chop yield was obtained from seed of both cultivars drilled in regular rows, double rows and triple rows than when traditionally sown as broadcast seed. Yields were greater when plants were sown at 70 kg seed ha−1 than when traditionally sown at 35 kg seed ha−1. These yield advantages were sustained through three successional harvests. Pioneer 988 generally yielded more than Abu Sabeen, esp

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Urbaniak, S. D., C. D. Caldwell, V. D. Zheljazkov, R. Lada, and L. Luan. "The effect of seeding rate, seeding date and seeder type on the performance of Camelina sativa L. in the Maritime Provinces of Canada." Canadian Journal of Plant Science 88, no. 3 (2008): 501–8. http://dx.doi.org/10.4141/cjps07148.

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The hypothesis of this study was that spring camelina (Camelina sativa L.) could be grown as a high-value crop under the moist, cool conditions of the Maritime Provinces in Canada and seeding date, seeding rate, and type of seeder will modify productivity and oil composition. The objectives were (1) to determine the optimum seeding date and seeding rate for camelina production in the Maritimes; and (2) to evaluate the effect of seeder type (seed drill and forage seeder) on camelina establishment and seed yield. A seeding date and rate experiment and a seeder type and seeding rate experiment we

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Singh, Lokendra, and Tulsi Parajuli. "Changes in Seed Yield of Sunflower (Helianthus annuus L.) in relation to the Seed Rate and Method of Sowing." International Journal of Environment 9, no. 2 (2020): 23–32. http://dx.doi.org/10.3126/ije.v9i2.32499.

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Inappropriate seed rate and sowing method contribute a significant role in low productivity of sunflowers. So, a study was conducted to assess the effect of different seed rates and sowing methods on the yield of sunflower in Ghodaghodi Municipality ward no. 2, Sandepani, far-west province, Kailali, Nepal, during spring season in 2018. The three different seed rates (8 Kg/ha, 10 Kg/ha and 12 Kg/ha) combined with three different sowing methods (broadcasting, line sowing and ridge sowing). A randomized complete block design in a 3×3 factorial arrangement with three replicates per treatment was a

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Sumaya A. Abdullah and Ahmed S. Khalaf. "EFFECT OF SEED SIZE AND SEEDING RATES ON YIELD ATTRIBUTES OF TRITICALE Var. ADMIRAL." IRAQI JOURNAL OF AGRICULTURAL SCIENCES 54, no. 3 (2023): 820–36. http://dx.doi.org/10.36103/ijas.v54i3.1766.

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A factorial in randomized complete block design (RCBD), with three replicates, including three seeding rates (200,250, and300seeds.m-2), and three grain size grades of Admiral variety of triticale whole (ungraded), thousand seed weight (TSW) 47.32g, heavy seeds 54.04g and light seeds 40.18g; for two successive growing seasons 2019-2020 and 2020-2021. The results revealed that spike length resembled number of spikelets per spike, grain density and number of grain per spike as seeding rate 200 with whole seeds attained highest value. Great differences between the two seasons were obvious, which

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Rice, W. A., G. W. Clayton, N. Z. Lupwayi, and P. E. Olsen. "Evaluation of coated seeds as a Rhizobium delivery system for field pea." Canadian Journal of Plant Science 81, no. 2 (2001): 247–53. http://dx.doi.org/10.4141/p00-062.

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Greenhouse and field experiments were conducted with field peas (Pisum sativum, L.) in soils of pH 4.4 to 6.8 to determine the best rate of inoculation with rhizobium and to evaluate pre-inoculated (coated) seeds as an alternative to the traditional seed inoculation method of using sticking agents. Inoculation rates higher than 105 cells seed–1 were usually required for high nodulation, nitrogen fixation and grain yields. Therefore, Canadian standards, which require that 105 nodulating rhizobia be delivered per seed for large-seed legumes like peas, may need to be increased. Counts of rhizobia

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Strašil, Z., and Z. Vorlíček. "The effect of nitrogen fertilization, sowing rates and site on yields and yield components of selected varieties of safflower (Carthamus tinctorius L.)." Plant, Soil and Environment 48, No. 7 (2011): 307–11. http://dx.doi.org/10.17221/4368-pse.

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Field trials were conducted at two sites Troubsko near Brno and Prague-Ruzyně in 1996&ndash;1999 with three varieties of safflower (Gila, CW-74, Sironaria). Three rates of nitrogen fertilization were used: N0 = no fertilization, N<sub>1</sub>&nbsp;= 40 kg/ha, N<sub>2</sub> = 80 kg/ha. Sowing rates were 50 and 70 germinable seeds per m2. The average values of oil content were highest in seeds of CW-74 variety (27.2%). Gila had on average the lowest oil content (24.5%). Linoleic acid was dominant in all three safflower varieties. Variation in content of linoleic a

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Harker, K. N., J. T. O’Donovan, E. G. Smith, et al. "Seed size and seeding rate effects on canola emergence, development, yield and seed weight." Canadian Journal of Plant Science 95, no. 1 (2015): 1–8. http://dx.doi.org/10.4141/cjps-2014-222.

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Harker, K. N., O’Donovan, J. T., Smith, E. G., Johnson, E. N., Peng, G., Willenborg, C. J., Gulden, R. H., Mohr, R., Gill, K. S. and Grenkow, L. A. 2015. Seed size and seeding rate effects on canola emergence, development, yield and seed weight. Can. J. Plant Sci. 95: 1–8. Canola (Brassica napus L.) is the most common dicotyledonous crop in Canada. Here we determine the effect of canola seed size and seeding rate on canola emergence, development, yield and seed weight. In 2013, direct-seeded experiments were conducted at nine western Canada locations. Four canola seed sizes (1000-seed weights

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TeKrony, Dennis M., and Dennis B. Egli. "DOES SEED VIGOR INFLUENCE CROP YIELD?" HortScience 26, no. 6 (1991): 797A—797. http://dx.doi.org/10.21273/hortsci.26.6.797a.

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Both seed viability and vigor directly affect the performance of seeds planted to regenerate the crop. Although seed quality can influence many aspects of performance (e.g., total emergence, rate of emergence), this presentation will primarily examine the relationship of seed vigor to one aspect of performance - crop yield. Reductions in yield can be indirectly related to low seed vigor if the low vigor seed results in plant populations that are below a critical level. Thus, we investigated the direct effects of seed vigor on yield in the absence of population differences for annual crops that

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Huang, Rong-Rong, Li-Ye Fan, and Qi-Zhao Li. "Optimization of Flash Extraction of Akebia trifoliata Seed Oil by the Box-Behnken Response Surface Methodology and Comparison of Oil Yields from Different Origins." Journal of Chemistry 2022 (April 11, 2022): 1–7. http://dx.doi.org/10.1155/2022/1790826.

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The aim was to optimize the extraction process of Akebia trifoliata seed oil. Using Akebia trifoliata seed as raw material, the oil extraction rate was used as index. The effect of flash extraction on the yield of Akebia trifoliata seed oil was investigated. Taking the liquid-material ratio, extraction voltage, and extraction time as the investigation factors and the oil extraction rate of Akebia trifoliata seed as the response value and on the basis of the single-factor test, the extraction process of Akebia trifoliata seed oil was optimized by the Box-Behnken response surface method. The oil

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Siddique, K. H. M., S. P. Loss, K. L. Regan, and D. L. Pritchard. "Adaptation of lentil (Lens culinaris Medik) to short season Mediterranean-type environments: response to sowing rates." Australian Journal of Agricultural Research 49, no. 7 (1998): 1057. http://dx.doi.org/10.1071/a98006.

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The growth and seed yield response of lentil (cv. Digger) to sowing rate (20-120 kg/ha) was studied at 13 sites over 3 seasons in the cropping regions of south-western Australia. The economic optimum plant density was estimated by fitting an asymptotic model to the data and calculating the sowing rate above which the cost for additional seed was equivalent to the revenue that could be achieved from the extra seed yield produced, assuming a 10% opportunity cost. On average across all sites and seasons, only 51% of sown seeds emerged. Increasing sowing rate resulted in greater dry matter product

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O'Donovan, John T., Jeff C. Newman, K. Neil Harker, and George W. Clayton. "Crop Seeding Rate Influences the Performance of Variable Herbicide Rates in a Canola–Barley–Canola Rotation." Weed Technology 18, no. 3 (2004): 733–41. http://dx.doi.org/10.1614/wt-03-168r.

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Glyphosate-resistant canola was seeded at Vegreville, Alberta, in 1997 and 1999 and barley in rotation with the canola in 1998 at three seeding rates. The effects, at each crop seeding rate, of variable glyphosate (canola) and tralkoxydim plus bromoxynil plus MCPA (barley) rates on crop yield, net economic return and seed production by wild oat, wild mustard, and wild buckwheat, and the amount of weed seed in the soil seed bank was determined. Crop seeding rate influenced the response of canola and barley yield and weed seed production to herbicide rate. At the lowest crop seeding rates, yield

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Allen, E. J., and Susan A. O'Brien. "An analysis of the effects of seed weight, seed rate and date of harvest on the yield and economic value of seed-potato crops." Journal of Agricultural Science 108, no. 1 (1987): 165–82. http://dx.doi.org/10.1017/s0021859600064236.

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SummaryFive experiments were carried out in two seasons which studied the effects of seed weight, seed rate and date of harvesting on yield of seed crops of Record (four experiments) and Maris Piper (one experiment) in Scotland. Small seed (35 g) produced more above-ground stems and tubers and higher seed yields at equal seed rates than large seed (105 g). Increasing seed rate with both seed weights increased yield of seed-size tubers. The value of the seed crop was measured as the number of ware hectares which could be replanted from the yield of 20–55 mm tubers and calculated using recommend

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Konovalov, David, Valentine Polishchuk, Svitlana Konovalova, and Anna Brovdi. "Yield and Quality of Winter Wheat (Triticum aestivum L., 1753) Seeds Depending on Pre-Sowing Treatment of Seed with Biological Preparations." Grassroots Journal of Natural Resources 7, no. 3 (2024): 22–38. https://doi.org/10.33002/nr2581.6853.070302.

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Intensive growth of the world's population, persistent climate change and food shortages are becoming major challenges of our time. For this reason, the use of intensive crop cultivation technologies to increase crop yields is a priority for the agricultural sector. The article describes the effect of pre-sowing treatment of seed with biostimulant Emistim C, micro fertiliser Avatar 1, and their combined use on the formation of yield and quality of winter wheat seeds under unstable moisture conditions. Pre-sowing treatment of seeds with biostimulant and micro fertiliser provided a significant i

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Yadelew, Zelalem. "Boosting the Productivity of Bread Wheat (Triticum aestivum L.) Varieties through Optimal Seed Rates and Appropriate Systems for Irrigation Production System of Northwestern Ethiopia." Turkish Journal of Agriculture - Food Science and Technology 13, no. 2 (2025): 285–93. https://doi.org/10.24925/turjaf.v13i2.285-293.6971.

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The availability of high-yielding varieties adapted to diverse agro-ecologies and production systems, preferred by farmers and consumers, is the key factor limiting productivity. Farmers access seeds of different quality levels from various seed systems. Studies on seed systems and rates in relation to yield and yield traits of bread wheat varieties under irrigation are limited. Therefore, an experiment was conducted in 2021 in Northwestern Ethiopia to improve the productivity of bread wheat (Triticum aestivum L.) varieties through suitable seed rates and systems under irrigation. The experime

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Fallahi, Somaye, and Peyman Sharifi. "Effect of Nitrogen Fixing Bacteria and Nitrogen Rate on Yield and Growth of Common Bean." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 68, no. 3 (2020): 491–96. http://dx.doi.org/10.11118/actaun202068030491.

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To study the effects of nitrogen (N) rate and co-inoculation of nitrogen-fixing bacteria (Rhizobium phaseoli) on common bean, an experiment was performed in Rasht, Iran. Common bean genotype, Guilanian landrace, was planted in a factorial experiment based on a randomized complete block design with three replicates on April, 15th in 2014. The first and second factors were nitrogen rates (0, 30, 60, 90 and 120 kg.ha-1 as urea) and Rhizobium phaseoli (inoculation and un-inoculation), respectively. Nitrogen had significant effect on seed yield and plant height. The effect of Rhizobium phaseoli was

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ROQUES, S. E., and P. M. BERRY. "The yield response of oilseed rape to plant population density." Journal of Agricultural Science 154, no. 2 (2015): 305–20. http://dx.doi.org/10.1017/s0021859614001373.

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SUMMARYEight winter oilseed rape and two spring oilseed rape field experiments were performed in the UK in harvest years 2009–12. Each experiment consisted of at least one hybrid and one open-pollinated variety grown at five seed rates from 10 or 20 seeds/m2 to 160 or 200 seeds/m2. Linear plus exponential curves were used to describe the yield response to seed rate and to calculate economically optimal seed rates. Plant counts were then used to derive optimal plant population densities. These ranged from <10 to 39 plants/m2 for six winter oilseed rape experiments between 73 and >155 plan

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Johnston, Adrian M., and F. Craig Stevenson. "Wheat seeding rate for spread and distinct row seed placement with air seeders." Canadian Journal of Plant Science 81, no. 4 (2001): 885–90. http://dx.doi.org/10.4141/p00-132.

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Air (pneumatic) seeding systems that have seed row opener options that spread seed rather than place it in distinct rows may allow producers to uniformly distribute plants and increase seeding rates to improve cereal crop yield. A study was conducted to determine if seed placement configuration influenced hard red spring wheat (Triticum aestivum L.) response to seeding rate. The study was carried out at Melfort, SK, from 1997 to 1999, using three seed configurations (23 cm and 30 cm distinct row with a hoe opener; and a 20 cm spread using a 28 cm sweep on 23 cm row spacing) and four seeding ra

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Kumar, S. Arun, G. Sathiya Narayanan, and S. Ranjithrajaram. "Studies on Effect of Various Seed Priming Treatments on Seed Yield in Barnyard Millet (Echinochloa frumentacea) cv CO1." Environment and Ecology 41, no. 3 (2023): 1362–68. http://dx.doi.org/10.60151/envec/bxuz5450.

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Field investigation was carried out to study the effect of various seed priming treatments on seed yield in barnyard millet cv CO 1. The seeds of barnyard millet cv CO 1 were given with following seed treatments i.e., dry dressing with Thiram @ 2 g/kg, Hydropriming, bio priming with Pungam leaf extract @ 5%, Moringa leaf extract @ 5%, organo priming with Vermiwash @ 5%, Panchagavya @ 5%, halo priming with MnSO4 @ 2%, ZnSO4 @ 2% along with control. The primed seeds were evaluated for the growth parameters, physiological parameters, gas exchange parameters and yield attributing characteristics.

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Lima, Elvis Rodrigues, Aline Silva Santiago, Adelson Paulo Araújo, and Marcelo Grandi Teixeira. "Effects of the size of sown seed on growth and yield of common bean cultivars of different seed sizes." Brazilian Journal of Plant Physiology 17, no. 3 (2005): 273–81. http://dx.doi.org/10.1590/s1677-04202005000300001.

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A field experiment was conducted to evaluate the effects of planting different sizes of seed of the same cultivar on biomass accumulation and grain yield of common bean (Phaseolus vulgaris L.) cultivars of different seed sizes. A 6 X 2 split-plot factorial design with four replicates was employed, with six bean cultivars as main plots and two seed sizes (small and large, the latter twice as heavy as the former) of the same cultivar as subplots. Eight weekly samplings of biomass were performed, and yield components were measured at maturity. Large seeds increased the leaf area index and the sho

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Taylor, B. R., and J. Y. Chambi. "Sesame Agronomy in South-east Tanzania. I. Plant Population and Sowing Method." Experimental Agriculture 22, no. 3 (1986): 243–51. http://dx.doi.org/10.1017/s0014479700014411.

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SUMMARYField trials are described in which the seed yield response of row-sown sesame to increasing plant population was examined, and in which row-sowing was compared with broadcasting at different seed rates. Maximum yields were obtained at an intended 200 to 250 × 103 plants ha−1 but yields were not greatly affected by a wider range of populations. Broadcasting, the normal local practice, gave yields slightly higher than those from rows 50 cm apart, the un-thinned rate of 800 × 103 viable seeds sown ha−1 yielded as well as treatments thinned to the optimum population, and double this seed r

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AGEGNEHU, GETACHEW, AMARE GHIZAW, and WOLDEYESUS SINEBO. "CROP PRODUCTIVITY AND LAND-USE EFFICIENCY OF A TEFF/FABA BEAN MIXED CROPPING SYSTEM IN A TROPICAL HIGHLAND ENVIRONMENT." Experimental Agriculture 42, no. 4 (2006): 495–504. http://dx.doi.org/10.1017/s0014479706003863.

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Mixed cropping of teff (Eragrostis tef) with faba bean (Vicia faba) was compared with sole cropping in the 2002 and 2003 growing seasons at Holetta Research Centre, in the central highlands of Ethiopia. The treatments were sole teff (25 kg seed ha−1), sole faba bean (200 kg seed ha−1) and 12.5, 25, 37.5, 50 and 62.5 % of the sole seed rate of faba bean mixed with a full teff seed rate. A randomized complete block design replicated four times was used. Treatment effects were significant for seed and biomass yields of each crop species. Increasing the seed rate of faba bean in teff/faba bean mix

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