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Journal articles on the topic 'Seed multiplication'

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1

Kevern, E. "NUCLEUS SEED MULTIPLICATION." NZGA: Research and Practice Series 5 (January 1, 1990): 30–31. http://dx.doi.org/10.33584/rps.5.1998.3338.

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The multiplic,ation of Nucleus Seed to produce Breeders' Seed of any of the Grasslands Division cultivars not covered by Head Licensees is handled by the Grasslands Division Seed Production Specialist. The procedure for the selection of increase areas is as follows. The Region: Wherever possible, cultivars are kept to districts that produce that type of cultivar already. As an example, 'Grasslands Ruanui' perennial ryegrass is grown at Waitohi in South Canterbury. This helps eliminate chance of crosspollination, provides better isolation, and reduces the likelihood of disagreements between
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2

Nikitina, Vera, and V. Vagner. "INFLUENCE OF THE SOWING METHOD, SEEDING RATE ON THE BUCKWHEAT VARIETIES SEEDS REPRODUCTION RATE IN THE FOREST-STEPPE ZONE OF THE SOUTH-MINUSINSK DISTRICT." Bulletin of KSAU, no. 3 (December 26, 2024): 12–18. https://doi.org/10.36718/1819-4036-2023-3-12-18.

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The purpose of the study is to reveal the significance of the seeding rate and the sowing method in the formation of the seed multiplication factor in buckwheat varieties in the forest-steppe zone of the South Minusinsk District. Object of study: 2 varieties of buckwheat (Zemlyachka, Zhdanka), 2 sowing methods (row – row spacing 15 cm; inter-row – 30 cm) and 3 seeding rates (2.5; 1.8 and 1.2 million viable seeds per 1 ha ). Significant differences were obtained in the coefficient of seed multiplication between varieties: the variety Zhdanka showed 7 units more of the studied indicator than Zem
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3

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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4

Montes, Nuria, and Israel Pagán. "Light Intensity Modulates the Efficiency of Virus Seed Transmission through Modifications of Plant Tolerance." Plants 8, no. 9 (2019): 304. http://dx.doi.org/10.3390/plants8090304.

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Increased light intensity has been predicted as a major consequence of climate change. Light intensity is a critical resource involved in many plant processes, including the interaction with viruses. A central question to plant–virus interactions is understanding the determinants of virus dispersal among plants. However, very little is known on the effect of environmental factors on virus transmission, particularly through seeds. The fitness of seed-transmitted viruses is highly dependent on host reproductive potential, and requires higher virus multiplication in reproductive organs. Thus, env
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5

Rubenstein, Jesse M., Philip E. Hulme, M. Philip Rolston, Alan V. Stewart, and John G. Hampton. "A century of weed change in New Zealand’s forage seed multiplication industry." NeoBiota 85 (June 27, 2023): 167–95. http://dx.doi.org/10.3897/neobiota.85.100825.

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International seed trading provides a significant introductory pathway for weed seeds, and many globally established weeds originated as contaminants in agricultural seed lots. Management of these trade systems helps minimize agricultural losses and is an important means of preventing future biological incursions. Forage crop seed lots could be considered higher risk than seed lots of arable and vegetable crops, as they have been found to have a higher percentage of contaminated seed lots. Two of the most commonly used temperate forage crops worldwide are perennial ryegrass (Lolium perenne) an
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6

Rubenstein, Jesse M., Philip E. Hulme, M. Philip Rolston, Alan V. Stewart, and John G. Hampton. "A century of weed change in New Zealand's forage seed multiplication industry." NeoBiota 85 (June 27, 2023): 167–95. https://doi.org/10.3897/neobiota.85.100825.

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International seed trading provides a significant introductory pathway for weed seeds, and many globally established weeds originated as contaminants in agricultural seed lots. Management of these trade systems helps minimize agricultural losses and is an important means of preventing future biological incursions. Forage crop seed lots could be considered higher risk than seed lots of arable and vegetable crops, as they have been found to have a higher percentage of contaminated seed lots. Two of the most commonly used temperate forage crops worldwide are perennial ryegrass (Lolium perenne) an
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7

Singh, Gurdev, and S. P. Seetharaman. "Management of Seed Enterprises: A Point of View." Vikalpa: The Journal for Decision Makers 15, no. 3 (1990): 17–22. http://dx.doi.org/10.1177/0256090919900302.

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Effprts towards organizing seed production have yielded positive though inadequate results in terms of seed multiplication and distribution. A wide gap still exists between demand and supply in the seed industry in India today. In this article, Gurdev Singh and Seetharaman analyse the structure of the seed industry and examine various aspects related to the management of seed research, seed multiplication and its distribution. They also suggest suitable policies to facilitate these activities.
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8

Dhakal, S. "Seed Producer Organization of Farmer: An Experience of Western Terai, Nepal." Agronomy Journal of Nepal 3 (October 24, 2013): 156–67. http://dx.doi.org/10.3126/ajn.v3i0.9018.

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Use of improved seeds has a vital role in enhancing agricultural production. Agriculture extension has implemented farmers’ managed seed multiplication program at the community level to ensure efficient supply of improved seeds. Several success and failure cases of seed multiplication through farmers' organizations were experienced. Therefore, a case study was conducted in the western terai region of Nepal to explore the factors responsible for success/failure of farmers' organizations involved in seed production. The results of the study found that internal factors of group, nature of extensi
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9

BUCKSETH, TANUJA, RAJESH K. SINGH, JAGESH K. TIWARI, ASHWANI K. SHARMA, SUKHWINDER SINGH, and S. K. CHAKRABARTI. "A novel sustainable aeroponic system for healthy seed potato production in India – An update." Indian Journal of Agricultural Sciences 90, no. 2 (2020): 243–48. http://dx.doi.org/10.56093/ijas.v90i2.98995.

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High yielding varieties and sound planting materials are prerequisites for sound seed potato production. Low multiplication rate, high seed (tuber) rate, dynamic amassing of degenerative infections, perishability and massiveness are the inherent issues in seed potato production. This may result in non-accessibility/non-availability of sufficient amounts of value seeds at reasonable cost and seed cost alone reflects 40% which is half of the aggregate expenses of development in potato. To go around a portion of these issues, a few alterations, for example, tuber ordering for infection opportunit
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10

P, PANDIAN, DHARMALINGAM C, SUBRAMANIAN M, and JAYANTHI R. "AN APPRAISAL OF SEED HEALTH OF RICE IR 20 AS INFLUENCED BY PROVENANCE AND GENERATIONS OF MULTIPLICATION." Madras Agricultural Journal 83, March (1996): 149–52. http://dx.doi.org/10.29321/maj.10.a00990.

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Significant differences were noticed in the percentage infection of seed-borne pathogens and white tip nematode (Aphelenchoides besseyi christie) in 33 seed samples of IR 20 rice belonging to three generations of multiplication produced at 11 locations. (6 in Madurai District of Tamil Nadu and 5 from Pondicherry) Of them, seeds from periyakulam recorded very low infection of seed- borne pathogens. The seed produced at Theni were totally from nematode infestation. Besides, nine samples of certified seed produced at eight selected locations in Madurai District and one from Karaikal also revealed
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11

Sobha, Ranber Chauhan, and Amitesh Das. "Impact of Various Physical and Physiological factors on Seed Germination, Seed Deterioration, Quality and in Storage: A Review." Ecology, Environment and Conservation 29, suppl (2023): 365–72. http://dx.doi.org/10.53550/eec.2023.v29i06s.055.

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Seed germination and seed quality parameters play an important role in crop production and crop multiplication. And development of several standards for germination and seed testing is the basic requirement in seed production, crop improvement and crop multiplication. To set the testing protocol is the basic requirement because seed is the key factor of agriculture without having a good seed our agriculture system is failed. That’s why the standardization of technique and production methods is very important for a successful production. In medicinal plants the standardization of protocols are
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12

Nardi, Marco. "The role of the seed sector in Italy for a modern and competitive agriculture." Italian Journal of Agronomy 11, no. 2 (2016): 137. http://dx.doi.org/10.4081/ija.2016.761.

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The high number of seed companies that are active on the Italian market provides our agriculture with the most appropriate varieties. Italy is particularly suited for growing seed crops: thanks to its favourable environmental conditions and also to the high level of professional skills of companies and farmers, Italy plays a leading role in the multiplication and export of vegetables, rice and sugarbeet seeds. In many cases, seeds grown in Italy are exported for conditioning and then re-imported for distribution to the end users. In 2014 the annual turnover for seed sales in Italy was approxim
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13

Khatnyansky, V. I., A. A. Detsyna, and I. V. Illarionova. "Seed growing of sunflower varieties: technique, legal acts, and technological methods." Oil Crops 4, no. 196 (2023): 75–83. http://dx.doi.org/10.25230/2412-608x-2023-4-196-75-83.

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Based on the Russian and foreign literary sources, there were analyzed peculiarities of technique, legal acts, and technological methods used in primary and industrial seed growing of sunflower varieties. The bee pollination and compliance with scientifically based norms of spatial and temporal isolations in all stages of seed production play a very important role in seed growing of sunflower varieties. Complexity of production and features of seed multiplication of the multidirectional usage varieties are emphasized. The cultivation of high qualitative seeds is a certain seed-growing branch o
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14

Tessema, Lemma, and Zebenay Dagne. "Aeroponics and Sand Hydroponics: Alternative Technologies for Pre-Basic Seed Potato Production in Ethiopia." Open Agriculture 3, no. 1 (2018): 444–50. http://dx.doi.org/10.1515/opag-2018-0049.

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Abstract Potato is the third most important food crop worldwide after rice and wheat in terms of human consumption, and global production exceeds 374 million metric tons. Despite this immense importance, potato yields from small-scale farmers in most developing countries including Ethiopia fall far below their capacity, mainly because of insufficient access to high quality seed and limited knowledge on crop husbandry. Moreover, 98.7% of the seed being used come from the informal seed system which lacks appropriate phytosanitary schemes. Frequent seed degeneration nature and low multiplication
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15

Kutoya, Kusse *. Yidnekachew Alemayehu Kebede Kassu. "COST BENEFIT ANALYSIS OF CENTER BASED SC-22 PRE-BASIC MAIZE SEED MULTIPLICATION." Journal of Agricultural Science and Research 2, no. 4 (2018): 24–26. https://doi.org/10.5281/zenodo.1476367.

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<strong><em>ABSTRACT</em></strong> <strong><em>T</em></strong><em>he need to study cost-benefit analysis of center based SC-22 pre-basic maize seed multiplication was to calculate the profitability of the activity undertaken, if an organization engaged in such kind of activities. Data were collected from daily performed activities, using structured questionnaire. The data were analyzed using percentages and gross margin analysis. The analysis reveals that the variable costs were 83.69 percent of the total cost of SC-22 pre-basic maize seed production. The fixed costs, on the other hand, were 1
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16

Láng, L. "Seed production aspects of genetically modified crop varieties." Acta Agronomica Hungarica 50, no. 3 (2002): 313–19. http://dx.doi.org/10.1556/aagr.50.2002.3.9.

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The seed multiplication of genetically modified (GM) plants requires a modification of the multiplication process used for conventional seed. The difference compared to conventionally-bred varieties involves the detection of the modified character during variety maintenance, seed multiplication and processing, the need for separate storage, processing and transportation, the extra cleaning required for the transportation, storage and processing equipment, and the extra administration necessary for the documentation and labelling of GM seed lots. All in all this results in the lower exploitatio
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17

Grauda, Dace, Lita Lapiņa, Biruta Jansone, Aldis Jansons, and Isaak Rashal. "Recovering Genetic Resources of Some Legume Species of Latvian Origin by Plant Tissue Culture." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences 67, no. 3 (2013): 224–28. http://dx.doi.org/10.2478/prolas-2013-0039.

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Accessions with no germinating seeds are a common problem in plant gene banks and research institutions. Our goal was to elaborate and apply an in vitro method of germination and multiplication of old aged seeds of red and alsike clover and alfalfa. Eighteen clover and five alfalfa accessions were used for germination in vitro. Most of the accessions had produced seeds more than 20 years ago and the seeds did not germinate in soil. Seed pre-treatment with different concentrations of potassium permanganate, as well as addition of phytohormones, AgNO3 and activated carbon to germinating media we
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18

O'Brien, P. J., J. L. Jones, E. J. Allen, and G. S. M. Raouf. "Effects of physiological age of seed tubers on seed yield and regrowth of progeny tubers in potatoes." Journal of Agricultural Science 107, no. 2 (1986): 307–27. http://dx.doi.org/10.1017/s0021859600087116.

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SummaryFour experiments are reported in which the effects of a range of physiological ages of seed tubers on growth and yield in seed crops and regrowth of the progeny seed were studied. Increasing the age of seed in Home Guard, Arran Comet, Pentland Javelin and Désirée advanced emergence, tuber initiation and early growth but restricted leaf area index and reduced the number of tubers and seed tuber yield. In these varieties increasing the physiological age of seed shortened the dormancy of the progeny seed and slightly increased sprout lengths at replanting but in Home Guard had no effects o
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19

Baraniecki, Przemysław, Francesco Latterini, Walter Stefanoni, Jakub Frankowski, Katarzyna Wielgusz, and Luigi Pari. "Assessment of the Working Performance of an Innovative Prototype to Harvest Hemp Seed in Two Different Conditions of Terrain Slope." Agronomy 12, no. 1 (2022): 185. http://dx.doi.org/10.3390/agronomy12010185.

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After many decades when its cultivation was prohibited, hemp is regaining its position as one of the most versatile cultivated crops. Multiplication of monoecious hemp varieties requires manual male plants rouging to keep a high share of monoecious plants in the population. It forces relatively small multiplication fields usually oscillating around 5 ha, where the use of big harvesting machines is not economically feasible. The B-800 mower prototype for hemp panicles proved to be a good alternative to harvest seeds of tall fibrous hemp. The test results of the mower analyzed in this study show
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20

Katz, Curren, and André Knops. "Decreased cerebellar-cerebral connectivity contributes to complex task performance." Journal of Neurophysiology 116, no. 3 (2016): 1434–48. http://dx.doi.org/10.1152/jn.00684.2015.

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The cerebellum's role in nonmotor processes is now well accepted, but cerebellar interaction with cerebral targets is not well understood. Complex cognitive tasks activate cerebellar, parietal, and frontal regions, but the effective connectivity between these regions has never been tested. To this end, we used psycho-physiological interactions (PPI) analysis to test connectivity changes of cerebellar and parietal seed regions in complex (2-digit by 1-digit multiplication, e.g., 12 × 3) vs. simple (1-digit by 1-digit multiplication, e.g., 4 × 3) task conditions (“complex − simple”). For cerebel
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21

E.N. Ghislain, Noumouha, Bouet Alphonse, Depieu M. Ernest, et al. "DIAGNOSIS OF RICE SEED SECTOR IN COTE DIVOIRE: ASSETS, WEAKNESSES AND STRATEGYFOR ASUSTAINABLE MULTIPLICATION, AND DISSEMINATION OF QUALITY SEEDS." International Journal of Advanced Research 9, no. 09 (2021): 453–62. http://dx.doi.org/10.21474/ijar01/13432.

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In Cote dIvoire, less than 10% of rice-growing areas are covered by improved varieties seeds of good quality.A diagnosis of the seed sector was carried out to highlight its main constraints and propose a strategy for the sustainable production and dissemination of seeds.The schedule of fixturesindicates that the seed issue is taken into account by policies, strategies and regulations specific to the seed sector and the agricultural sector as a whole.Unfortunately, in its implementation, these seed policies and strategies do not take up their proper place to ensure increased agricultural produc
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22

Birhanu, Kahsay, Mekibib Firew, and Teklewold Adefris. "In vitro Propagation of Oxytenanthera abyssinica (A. Rich. Munro) from Seed Culture." Biotechnology Journal International 18, no. 2 (2017): 1–13. https://doi.org/10.9734/BJI/2017/32715.

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<strong>Introduction:</strong> In Ethiopia, <em>O. abyssinica</em> has varies economic importance. However, conventional propagation methods of <em>O. abyssinica</em> are generally inefficient due to their low multiplication rate, time consuming, labor intensive, and too costly. <strong>Aims: </strong>The objective of this study was to develop a protocol for micropropagation of <em>O. abyssinica</em> through seed culture. <strong>Methodology:</strong> For seed disinfection, NaOCl of 3, 4, and 5% concentration for 15, 20, and 25 min exposure time were tested. MS medium augmented with BAP or KN
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23

Muthoni, Jane, Hussein Shimelis, and Jacob Mashilo. "Production and availability of good quality seed potatoes in the East African region: A review." Australian Journal of Crop Science, no. 16(07):2022 (July 1, 2022): 907–15. http://dx.doi.org/10.21475/ajcs.22.16.07.p3566.

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Demand for potatoes has grown rapidly in eastern Africa due to rapid population growth, urbanisation and life style changes. This has made potato an important commodity crop in the region contributing to food security and enhanced livelihoods. However, potato productivity in the region is low; ranging from 6 to10 t/ha against potential yields of over 30 t/ha. One of the major causes of low yields is the chronic shortage of good quality seed potatoes for planting, which also limits adoption of new and improved varieties. Therefore, the objective of this paper is to highlight the opportunities a
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24

P. González, P. L. Colnago; F. Vilaró;. "Production and multiplication of national potato varieties in family farming systems." Revista Latinoamericana de la Papa 23, no. 2 (2020): 74–79. http://dx.doi.org/10.37066/ralap.v23i2.370.

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Potato is the main vegetable in terms of production volume at national level. In Uruguay, two agricultural cycles are carried out every year, in autumn and in spring. Potato small-scale family farmers represent 80% in number and cover only 10% of national area. The current system of seed multiplication allows for two crops in two years, involving the conservation of seed tubers for six months. An alternative scheme for family farmers has been proposed, based on the use of national short dormancy varieties. With proper management, it is possible to obtain four crops in two years. In order to su
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25

Ndubi, Jessica. "Innovations and Quality Seed Potato Multiplication in the Central Kenya Highlands." International Journal of Agricultural Studies 3, no. 1 (2024): 1–18. http://dx.doi.org/10.58425/ijas.v3i1.287.

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Aim: Potato is an important food crop in Kenya. Land for seed potato multiplication was allocated at Tigoni, but the volume produced declined due to land grabbing. To overcome this constraint partnerships were forged among various actors. The objective of the study was to unravel the link between partnerships and the history of land tenure in Kenya. Methods: Data was collected through qualitative methods. These included 25 key informant interviews, 9 focus group interviews and observations. This was complemented with secondary sources that included journal articles, books and reports. The qual
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26

Okonkwo, H. O., R. E. Ubaekwe, A. N. Okeke, and L. C. Malizu. "Phenotypic (Fruit and Seed Characters) Selection of Dacryodes edulis (Don. G. Lam H. J.) Tree for Vegetative Propagation." Nigerian Journal of Environmental Sciences and Technology 5, no. 2 (2021): 347–53. http://dx.doi.org/10.36263/nijest.2021.02.0280.

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The study was conducted to identify superior D. edulis trees using phenotypic characters (fruit and seed size) as the criteria to select candidate trees for subsequent multiplication through vegetative propagation. Five D. edulis compound trees were randomly selected within Onne community in Eleme LGA Rivers state in a preliminary effort to assist households in the selection and multiplication of desirable tree phenotypes. Seeds were extracted by softening fruit with warm water at 57oC. Fruit and seed length (mm), breadth (mm), and thickness (mm) were taken using veneer caliper. Size of fruit
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27

Tusiime, Sharon M., Gail R. Nonnecke, and Helen H. Jensen. "Tomato seed value chain analysis and seed conditioning among seed companies in Uganda." International Food and Agribusiness Management Review 23, no. 4 (2020): 501–14. http://dx.doi.org/10.22434/ifamr2019.0199.

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Tomatoes increase nutritional food security and income among Ugandan smallholder farmers who have limited access to high quality seed. The objective of this study was to analyze the current tomato seed value chain for Uganda. Survey responses determined roles of key participants, including Ministry of Agriculture, Animal Industry and Fisheries (MAAIF) for regulation and certification; National Agricultural Research Organization for breeding cultivars and seed multiplication; Makerere University for education and research; commercial seed companies for seed importation and conditioning; seed di
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28

Assaye, Yilikal, Ayele Gashu, and Esuyawkal Tenaw. "Rice Seed System: Current Practices to Strengthen Early Generation Seed of Climate Resilient Rice Varieties in Ethiopia." Agriculture, Forestry and Fisheries 13, no. 6 (2024): 265–75. https://doi.org/10.11648/j.aff.20241306.16.

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The availability of quality rice seed is a critical factor in boosting rice productivity and production in Ethiopia. This study assessed the current practices of early generation and community-based rice seed multiplication and quality control to strengthen the rice seed system in Fogera district, Ethiopia. Community-based seed production and marketing groups played a significant role in rice seed multiplication and distribution, but faced challenges related to limited access to breeder and foundation seed, inadequate technical and financial support, and weak seed quality control mechanisms. S
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Dianawati, Meksy, Yati Haryati, and Kiki Kusyaeri Hamdani. "Various Modified Treatments on Improving G0 Seed Multiplication in Potato." E3S Web of Conferences 444 (2023): 04015. http://dx.doi.org/10.1051/e3sconf/202344404015.

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Many tubers are needed for the production of G0 potato seeds because potato seeds are sold in units of quantity. This research aimed to increase the number of tubers in G0 potato seed production. The study was conducted in a plastic house in Lembang, West Bandung, West Java from October 2017 to January 2018. The study used a randomized block design with six replications. The treatments tested were control (A), application of gibberellins (B), cutting of planlet cuttings followed by application of gibberellins (C), application of paclobutrazole (D), and application of paclobutrazole followed by
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Altaye, Solomon, Habte Nida, Derara Sori, et al. "Empowering Smallholder Sorghum Farmers for Resilience: Lessons from a Community-Based Seed Multiplication Scheme in West Hararghe, Ethiopia." Agriculture, Forestry and Fisheries 13, no. 4 (2024): 116–25. http://dx.doi.org/10.11648/j.aff.20241304.13.

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Sorghum is a vital crop for food security in Ethiopia. Sorghum landraces are particularly crucial in crop-livestock mixed farming, however, the extended growing periods (6-8 months) required for these landraces make the crop vulnerable to recurrent drought events associated with delayed rain, dry spells, and drought during critical stages. The landraces are usually planted in March or April depending on the onset of rainfall and harvested around November but often fail due to drought. In such situations, early-maturing improved varieties are an option for farmers but access to seeds of these i
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31

Jain, Radha. "Bud chip technology for seed saving and rapid seed multiplication in sugarcane." Advances in Applied Research 13, no. 2 (2021): 58–62. http://dx.doi.org/10.5958/2349-2104.2021.00012.7.

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32

Sharma, H. L., H. Singh, H. S. Randhawa, D. P. Joshi, and M. R. Gagneja. "Sequential Tiller Separation--A Method for Rapid Rice Seed Multiplication." International Rice Research Newsletter 12, no. 6 (1987): 9. https://doi.org/10.5281/zenodo.7128066.

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This article 'Sequential Tiller Separation--A Method for Rapid Rice Seed Multiplication' appeared in the International Rice Research Newsletter series, created by the International Rice Research Institute (IRRI). The primary objective of this publication was to expedite communication among scientists concerned with the development of improved technology for rice and for rice based cropping systems. This publication will report what scientists are doing to increase the production of rice in as much as this crop feeds the most densely populated and land scarce nations in the world.
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33

Joshi, Bal Krishna. "Indigenous Seeds, Seed Selection and Seed Bank for Sustainable Agriculture." Grassroots Journal of Natural Resources 04, no. 04 (2021): 13–26. http://dx.doi.org/10.33002/nr2581.6853.040402.

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Indigenous seeds are grown by the farmers over the years with a strong influence from local natural factors. Such seeds have a higher level of intrapopulation variations and the capacity of buffering the adverse factors. Understanding indigenous seeds along with their diversity are useful to diversify their uses, to assess conservation status, to know the factors making farming areas red zone, and to improve their performance. Selection is the simplest and most common method for the improvement of crop varieties. The variation must be created and maintained to impose selection. Different types
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Bal, Krishna Joshi. "Indigenous Seeds, Seed Selection and Seed Bank for Sustainable Agriculture." Indigenous Seeds, Seed Selection and Seed Bank for Sustainable Agriculture 4, no. 4 (2021): 14. https://doi.org/10.33002/nr2581.6853.040402.

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Indigenous seeds are grown by the farmers over the years with a strong influence from local natural factors. Such seeds have a higher level of intrapopulation variations and the capacity of buffering the adverse factors. Understanding indigenous seeds along with their diversity are useful to diversify their uses, to assess conservation status, to know the factors making farming areas red zone, and to improve their performance. Selection is the simplest and most common method for the improvement of crop varieties. The variation must be created and maintained to impose selection. Different types
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35

Mwaisela, Fellowes A. "WTO and Sustainable Seed Multiplication Programmes in Tanzania." Development 43, no. 2 (2000): 83–87. http://dx.doi.org/10.1057/palgrave.development.1110150.

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36

Ranalli, Paolo. "Innovative propagation methods in seed tuber multiplication programmes." Potato Research 40, no. 4 (1997): 439–53. http://dx.doi.org/10.1007/bf02358004.

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37

Peláez, Diana, Paula A. Aguilar, Mariana Mercado, et al. "Genotype Selection, and Seed Uniformity and Multiplication to Ensure Common Bean (Phaseolus vulgaris L.) var. Liborino." Agronomy 12, no. 10 (2022): 2285. http://dx.doi.org/10.3390/agronomy12102285.

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Seed uniformity and stability testing, and multiplication, are key steps in the seed supply chain of the common bean (Phaseolus vulgaris L.) and other crops. Optimizing agronomical practices in these phases can ultimately ensure seed quality and availability, and germplasm prospective utilization. However, farmers have rarely standardized seed testing and propagation protocols in local common bean landraces conserved in situ. An example of this is the Liborino variety (var.), a promising yellow Andean common bean known for its presumably high digestibility and adaptation to the local condition
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Harbage, James F. "Micropropagation of Echinacea angustifolia, E. pallida, and E. purpurea from Stem and Seed Explants." HortScience 36, no. 2 (2001): 360–64. http://dx.doi.org/10.21273/hortsci.36.2.360.

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Micropropagation of three Echinacea species, E. angustifolia DC., E. pallida Nutt., and E. purpurea Moench., was investigated as a potential means of germplasm preservation of species faced with overcollection in the wild and rapid clonal propagation of elite individuals with unique medicinal or ornamental properties. Very high contamination rates occurred with shoot-tip explants but not with nodal segments. Contamination rates for seed explants were inversely related to the number of seedcoat layers removed, ranging from 100% contamination from intact seeds to near 0% contamination from excis
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Juma Okello, Julius, Wellington Jogo, Norman Kwikiriza, and Penina Muoki. "Motivations and cognitive models associated with decentralized seed multiplication." Journal of Agribusiness in Developing and Emerging Economies 8, no. 4 (2018): 626–41. http://dx.doi.org/10.1108/jadee-06-2017-0058.

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PurposeThe sustainability of decentralized seed producers established to enhance farmers’ access to seed of newly introduced biofortified crops is a major challenge. Understanding what motivates the multipliers of clonally propagated crops to engage in seed multiplication is critical for enhancing access to improved seed varieties. The purpose of this paper is to examine the structure and content of mental models associated with the decision to engage in biofortified sweetpotato vine multiplication as a business.Design/methodology/approachThe study focused on decentralized vine multipliers fro
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Vasic, Dragana, Ksenija Taski, Sreten Terzic, Slavko Kevresan, and Dragan Skoric. "Transferring of Sclerotinia resistance from wild into cultivated sunflower: Combining of conventional and laboratory techniques." Zbornik Matice srpske za prirodne nauke, no. 102 (2002): 29–33. http://dx.doi.org/10.2298/zmspn0201029v.

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Five populations of each H. molis, H. maximiliani, H. rigidus and H. tuberosus were screened for resistance to stem form of Sclerotinia. On the basis of the results obtained by screening, nine crosses of resistant populations with either other wild species populations or with cultivated sunflower were made. As in some crosses a small quantity of seed was produced and the seeds germinated poorly, modified tissue culture methods were used to enhance germination and produce clones of interesting plants. These methods were found to be efficient both for seed germination and plant production and mu
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Harbage, James F. "333 Micropropagation of Echinacea angustifolia, E. pallida, and E. purpurea from Vegetative and Seed Explants." HortScience 35, no. 3 (2000): 449C—449. http://dx.doi.org/10.21273/hortsci.35.3.449c.

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Micropropagation of three Echinacea species, E. angustifolia, E. pallida, and E. purpurea, was investigated as a potential means of germplasm preservation of species faced with overcollection in the wild and rapid clonal propagation of elite individuals with unique medicinal or ornamental properties. Comparison of explant sources indicated vegetative explants resulted in high contamination rates when collected from shoot-tips (100%),but not when collected from nodal explants (11% to 39). Seed coat removal reduced contamination from 100% in intact seeds to near 0% in excised embryos. Removal of
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Garg, Raghav, and Sudhanshu Maheshwari. "SYNTHETIC SEED TECHNOLOGY, APPLICATION AND FUTURE TRENDS." EPH - International Journal of Agriculture and Environmental Research 9, no. 1 (2023): 1–10. http://dx.doi.org/10.53555/eijaer.v9i1.67.

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In nature, seeds are typically the primary method of plant propagation. Some plants can be vegetatively propagated but conventional methods are time consuming, expensive and cannot produce plants at larger scale. Synthetic seed technology could play a significant role in the production of artificial seeds, or Syn-seeds. Somatic embryos lacked crucial auxiliary tissues like endosperm and protective coverings, which made them difficult to handle and store. Two kinds of somatic embryos are known as desiccated and hydrated seeds based on the techniques developed thus far. The goal of this study is
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Tumuhimbise, Robooni, and David Talengera. "Improved Propagation Techniques to Enhance the Productivity of Banana (Musa spp.)." Open Agriculture 3, no. 1 (2018): 138–45. http://dx.doi.org/10.1515/opag-2018-0014.

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Abstract The objective of this article is to provide information on pertinent propagation techniques for increased banana productivity. Banana, a very important crop in many tropical and subtropical countries of the world, is propagated with extreme difficulties. Its ordinary propagation technique of using suckers directly detached from a mother plant is limited by low multiplication rates and propensity of disseminating pests and diseases, which culminates in reduced banana productivity. Improved propagation techniques such as mother plant stripping, decapitation and mini-corms that increase
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Fery, R. L. "Development of Pinkeye-type Southernpeas with Green Cotyledons." HortScience 32, no. 3 (1997): 452C—452. http://dx.doi.org/10.21273/hortsci.32.3.452c.

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A breeding program was initiated in 1990 to develop a pinkeye-type southernpea [Vigna unguiculata (L.) Walp.] cultivar homozygous for the gc gene conditioning green cotyledons. The pinkeye is the leading cultivar class of southernpea grown in the U.S., and there is considerable interest in converting pinkeye germplasm to green cotyledon phenotypes because a cultivar homozygous for the gc gene can be harvested at the near-dry seed stage of maturity without loss of the seed's fresh green color. Seeds containing embryos homozygous for the gt gene are easily identified, and this ability to select
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Nyodu, Karter, and Debanand Das. "Efficacy of Some Bacterial Biocontrol Agents as Seed Treatment against Root Knot Nematode, Meloidogyne incognita on Tomato." International Journal of Current Microbiology and Applied Sciences 9, no. 9 (2020): 1043–46. http://dx.doi.org/10.20546/ijcmas.2020.909.129.

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Pot experiment was conducted to evaluate the efficacy of two formulations (talc formulation and vermi formulation) of four bacterial nematode biocontrol agents viz., Bacillus subtilis, Bacillus pumilus, Bacillus megaterium and Pseudomonus flourescens as seed treatment against root knot nematode, Meloidogyne incognita on tomato. All the bioagents were tries at 10 and 20g / kg of seed. The experiment was terminated at 60 days after sowing the seed. The results revealed that all the treatments significantly increased the plant growth parameters and reduced the nematode multiplication over untreat
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Kalsum Yulifar, Andi Sri Ummi, Awang Maharijaya, Agus Purwito, Endang Gunawan, Heri Harti, and M. Rahmad Suhartanto. "Seed tuber production of potato from stem cuttings, planting densities, and paclobutrazol concentrations." Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) 52, no. 1 (2024): 74–81. http://dx.doi.org/10.24831/jai.v52i1.52685.

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Rapid multiplication of potato seed using cuttings is a pivotal strategy for ensuring seed availability. This study aimed to elucidate the interactive effects of node number, paclobutrazol concentration, and planting density on seed potato and cutting productions. The study consisted of two experiments. The first experiment evaluated two genotypes (Granola and PKHT-6) with one or two nodes per cutting. The second experiment investigated planting density (one, three, or five plants per polybag) and paclobutrazol concentration (0, 15, 30, and 45 mg L-1). Notably, node number did not significantl
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Awol, Mohammed, and Tesfaye Tamrat. "Enhancing Chickpea Seed Production through Irrigation Production System at Lowlands of North Wollo." Sarcouncil Journal of Agriculture 02, no. 02 (2023): 1–9. https://doi.org/10.5281/zenodo.10044846.

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The seed multiplication activity conducted at Kobo districts, which was selected based on its irrigation potential and experience to produce chickpea seedduring 2018 cropping season to increase production and productivity of chickpea in the major producing areas of the region and to improve livelihood of farmers. Totally 189 (52 F) farmers were participated by this activity with 54ha of their land covered by 7.56 tones seed.The seed source was directly purchased from seed grower farmers association.Training was also given for participating farmers and development agents on production packages
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Etien, Dibié Théodore, Edson Lezin Bomisso, Bossombra Laurent Apollinaire Anguiby, and Daouda Koné. "Optimisation de la germination de cinq semences d’essences de la forêt en dégradation Haut-Sassandra (Cote d’Ivoire)." European Scientific Journal, ESJ 21, no. 12 (2025): 190. https://doi.org/10.19044/esj.2025.v21n12p190.

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La présente étude a été réalisée sur des semences appartenant à 5 essences commerciales à germination difficile en Forêt Classée du Haut-Sassandra dans le Centre Ouest de la Côte d’Ivoire en vue de faciliter leur domestication. Pour ce faire, les fruits de Chrysophyllum giganteum, Morus mesozygia, Nauclea diderrichii, Pycnanthus angolensis et Sterculia rhinopetala ont été collectées et leurs paramètres morphophysiologiques ont été évalués en plus de leur pouvoir germinatif. Relativement au pouvoir, les facteurs évalués sont le type de semence (Fruit entier, graine fraiche, graine sèche) et l’e
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Sharma, Neeraj, Wichard Sanders, Robert Graveland, John Schoper, and Hugo Campos. "A public–private partnership to speed up potato breeding." Open Agriculture 5, no. 1 (2020): 826–33. http://dx.doi.org/10.1515/opag-2020-0083.

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AbstractThe process to develop potato cultivars is complex and lengthy due to numerous reasons, viz., tetrasomic inheritance with heterozygous nature, large number of phenotypic recurrent selections, low efficiency of selections in early generations, slow multiplication rate of selected clones, and others. In Southeast Asia, varieties are primarily developed by public sector having poor seed multiplication facilities, and the complexity is further aggravated by the presence of few commercial seed multipliers. To speed up the breeding and selection processes and ensure the adoption of developed
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Howard, Michael B., and Steven W. Hutcheson. "Growth Dynamics of Salmonella enterica Strains on Alfalfa Sprouts and in Waste Seed Irrigation Water." Applied and Environmental Microbiology 69, no. 1 (2003): 548–53. http://dx.doi.org/10.1128/aem.69.1.548-553.2003.

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ABSTRACT Alfalfa sprouts and other seed sprouts have been implicated in numerous outbreaks of salmonellosis. The source of these epidemics appears to have been low-level contamination of seeds by Salmonella bacteria that developed into clinically significant populations during the seed germination process. To test the possibility that Salmonella enterica strains carry host range determinants that allow them to grow on alfalfa, strains isolated from alfalfa or other sources were surveyed for their ability to grow on germinating alfalfa seeds. An S. enterica serovar Cubana strain originally isol
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