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Journal articles on the topic 'Carrots - crops'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Davis, R. M., and J. J. Nunez. "Influence of Crop Rotation on the Incidence of Pythium- and Rhizoctonia-Induced Carrot Root Dieback." Plant Disease 83, no. 2 (1999): 146–48. http://dx.doi.org/10.1094/pdis.1999.83.2.146.

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The influence of various crop rotations on population densities of Pythium spp. and Rhizoctonia solani, subsequent carrot yields, and incidence of carrot root dieback was investigated. Carrots followed crops of alfalfa, barley, carrots, cotton, onions, or fallowed soil in two independent trials. Populations of Pythium spp. were greater following alfalfa and barley than other crops in one of the 2 years of the study. Populations of R. solani were generally greater following alfalfa and cotton than other crops in each of the 2 years of the study. In 1 year, yields of marketable carrots were redu

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2

Kimpinski, Joe, and Kevin Sanderson. "Effects of crop rotations on carrot yield and on the nematodes Pratylenchus penetrans and Meloidogyne hapla." Phytoprotection 85, no. 1 (2004): 13–17. http://dx.doi.org/10.7202/008901ar.

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Abstract Carrot yield (Daucus carota) and population levels of the root-lesion nematode Pratylenchus penetrans and the northern root-knot nematode Meloidogyne hapla were measured in five rotation crops and in subsequent carrot crops at three field sites (1998-1999, 1999-2000, and 2000-2001). Total and marketable carrot yields averaged over the three sites did not differ in the crop sequences but there was a difference among sites. The total yields at sites 1, 2, and 3 were 77.86, 68.12, and 30.33 tonnes ha-1, respectively. Marketable yields were 59.04, 60.62, and 24.11 tonnes ha-1 at sites 1,

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3

Et. al., Ratnikov A. N,. "Yield and quality of carrots when using the Gumiton organo-mineral complex in conditions of radioactive contamination." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 5 (2021): 1955–59. http://dx.doi.org/10.17762/turcomat.v12i5.2278.

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The aim of this work is to assess the impact of Gumiton peat-based organo-mineral complex on the productivity and quality of carrots and the transition of 137Cs from soil to root crops under conditions of radioactive contamination. According to the results of field experiments on gray forest and soddy-podzolic soils of the Kaluga region of Russia, it is shown that leaf treatment with Gumiton of carrot plantings in different phases of crop development increases the yield of root crops by 20-40%, depending on the variety, soil type and agricultural background. Analysis of studies in the growing

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4

Et. al., Ratnikov A. N. ,. "Yield and quality of carrots when using the Gumiton organo-mineral complex in conditions of radioactive contamination." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (2021): 3351–55. http://dx.doi.org/10.17762/turcomat.v12i2.2395.

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The aim of this work is to assess the impact of Gumiton peat-based organo-mineral complex on the productivity and quality of carrots and the transition of 137Cs from soil to root crops under conditions of radioactive contamination. According to the results of field experiments on gray forest and soddy-podzolic soils of the Kaluga region of Russia, it is shown that leaf treatment with Gumiton of carrot plantings in different phases of crop development increases the yield of root crops by 20-40%, depending on the variety, soil type and agricultural background. Analysis of studies in the growing

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5

Błażewicz-Woźniak, Marzena, Dariusz Wach, Mirosław Konopiński, Elżbieta Patkowska, and Monika Baltyn. "Effect of cover crops on emergence and growth of carrot (Daucus carota L.) in no-plow and traditional tillage." Acta Agrobotanica 68, no. 1 (2015): 63–73. http://dx.doi.org/10.5586/aa.2014.053.

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<p>The aim of the experiment was to determine the influence of cover crop biomass incorporated into the soil at different times and using different treatments on carrot emergence and growth. 7 species of cover crops were included in the study: <em>Secale cereale</em>, <em>Avena sativa</em>, <em>Vicia sativa</em>, <em>Sinapis alba</em>, <em>Phacelia tanacetifolia</em>, <em>Fagopyrum esculentum</em>, and <em>Helianthus annuus</em>. </p><p>Number of emerged carrot plants significantly depended on

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6

Just*, Brian J., and Philipp W. Simon. "Mapping of Major Carrot Color Genes an Expression of Carotenoid Biosynthetic Genes." HortScience 39, no. 4 (2004): 870B—870. http://dx.doi.org/10.21273/hortsci.39.4.870b.

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While the carotenoid biosynthetic pathway has been studied several horticultural and agronomic crops, very little information exists for this conserved pathway in carrot, a primary source of dietary carotenoids. Though orange carrots are the most familiar color to Western consumers, yellow, red, and white carrots also exist and have been historically important. Modern carrot breeders are showing renewed interest in these unusual color phenotypes. Beta- and alpha-carotene are the primary pigments in orange carrot roots. Yellow carrots accumulate xanthophylls (oxygenated carotenes), red carrots

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7

Kjellenberg, Lars, Eva Johansson, Karl-Erik Gustavsson, Artur Granstedt, and Marie E. Olsson. "Influence of organic manures on carrot (Daucus carota L.) crops grown in a long-term field experiment in Sweden." Renewable Agriculture and Food Systems 31, no. 3 (2015): 258–68. http://dx.doi.org/10.1017/s1742170515000174.

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AbstractThis study evaluated the effects of organic agriculture manuring systems on carrot (Daucus carota) root morphology and sugar and polyacetylene content. Carrots were harvested three times per season 2006–2007 in a long-term field experiment at Skilleby research farm, Sweden. The effects of pelleted chicken manure, fresh farmyard manure and composted farmyard manure (COM) were compared against control plots left unmanured since the field experiment started in 1991. The carrots were analyzed for root size, root shape, amount of soluble sugars and amount of falcarinol-type polyacetylenes.

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8

Sorensen, Erik J. "EVALUATING CARROT CULTIVARS IN WASHINGTON THROUGH ON-FARM TRIALS AND IN-MARKET TASTING." HortScience 31, no. 3 (1996): 323c—323. http://dx.doi.org/10.21273/hortsci.31.3.323c.

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Carrots are among the most important commercial vegetable crops in Washington state. Over the past decade, production by both large-scale and small-scale growers has steadily increased. To assist these growers, a variety of carrot cultivars for fresh market and processing have been evaluated in on-farm trials and in-market tasting conducted by Washington State Univ. Cooperative Extension. In 1994, 116 entries from 16 seed companies and the U.S. Dept. of Agriculture were planted for evaluation. Imperator-, Chantenay-, Nantes-, and Kuroda-type carrots were planted in separate sections of this on

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9

Zelenkov, Valery N. "Antioxidant activity of seeds and sprouts of celery crops." Butlerov Communications 62, no. 6 (2020): 131–37. http://dx.doi.org/10.37952/roi-jbc-01/20-62-6-131.

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The study examined germination of seeds, antioxidant properties of seeds, sprouts and biomass of four vegetable crops under controlled conditions under various modes of seed drying. After thermal dehydration of the seeds (drying of samples at 105 °C), a sharp decrease in sowing properties occurs compared to air drying. Thermal dehydration strongly affects the viability of seeds and plants, but the level of adaptation to this stress effect is genetically determined and associated with metabolic features, forms and the state of water in plant cells and tissues. So, coriander seeds completely los

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10

Karklelienė, Rasa, Audrius Radzevičius, and Česlovas Bobinas. "Productivity and Root-Crop Quality of Lithuanian Carrot (Daucus Sativus Röhl.) Breeder Lines." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 63, no. 1-2 (2009): 63–65. http://dx.doi.org/10.2478/v10046-009-0016-7.

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Productivity and Root-Crop Quality of Lithuanian Carrot (Daucus Sativus Röhl.) Breeder Lines The investigation was carried out at the Lithuanian Institute of Horticulture in 2004-2006. Nine promising Lithuanian breeder lines of carrots: 2030, 2046, 2049, 2056, 2065, 2075, 2084, 2091, 2095, and hybrid Svalia F1were included in our experiment. The following sets of parameters were estimated: plant phenology, morphology (length, diameter and mass of root), yield and biochemical composition (carotene, dry soluble matter, total sugar, nitrates). Carrots were cultivated in sandy or sandy-loam Calc (

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11

Korsakov, Konstantin Vyacheslavovich, Victor Vasilyevich Pronko, Nina Anatolyevna Pronko, Vladimir Petrovich Belogolovtsev, and Viktor Vladislavovich Korsak. "Effect of humic products and chelated microfertilizers on carrot productivity during irrigation." Agrarian Scientific Journal, no. 4 (April 29, 2019): 16–20. http://dx.doi.org/10.28983/asj.y2019i4pp16-20.

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Life Force LLC, RPE products were studied on irrigated dark chestnut soils of the Saratov Transvolga region. The objects of the studies were Chantenay carrot variety and products, containing humic acids, as well as macro (nitrogen), meso (calcium, magnesium and trace elements). The purpose of the research is to determine the most effective combinations of humic acid salts and chelated micronutrient fertilizers that provide a substantial increase in the yield of carrots. It is established that spraying carrots with a solution of Reasil® micro Hydro Mix increased the harvest of standard root cro

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12

Pettipas, F. Christine, Rajasekaran R. Lada, Claude D. Caldwell, and Steve Kyei-Boahen. "(217) An Evaluation of Sulfur Status and the Effects of S on Uptake, Distribution, and Yield of Processing Carrots (Daucus carota L.)." HortScience 40, no. 4 (2005): 1073B—1073. http://dx.doi.org/10.21273/hortsci.40.4.1073b.

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A reduction in the atmospheric deposition of sulfur (S) and S-containing fertilizers has greatly reduced S inputs to the soil in recent years. At the same time, S removal from the soil has increased as a result of increased crop production and higher yields. Sulfur deficiency has been found to reduce yields in several crops. A study was conducted to gain an understanding of the S status of Nova Scotia soils that support carrot production, as well as to examine the effects of rate of S application, method of S application, and type of S fertilizer on carrot uptake, distribution, yield, and reco

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13

S.V., Bryl. "Irrigation regime and mineral nutrition for growing carrots." Ekologiya i stroitelstvo 4 (2015): 18–21. http://dx.doi.org/10.35688/2413-8452-2015-04-004.

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The article discusses the modes of irrigation and mineral nutrition of carrots during growth in the Moscow region. Research objective – improvement of the planning process irrigation regimes carrots, saving water and energy resources, on the basis of improving the accuracy of the calculation methods for the measurement of water consumption given the variability in hydrometeorological conditions. According to the results of the research showed that for soddy soils of the forest zone in high-draught year is optimal irrigation regime 85-85-85 % of water holding capacity (HB) and wet year – 80-70-

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14

Zaitseva, Nadezhda Aleksandrovna, Antonina Fedorovna Tumanyan, and Anastasiya Pavlovna Seliverstova. "Agroecological study of garden carrot cultivars from collection of Vavilov institute." RUDN Journal of Agronomy and Animal Industries 15, no. 3 (2020): 253–62. http://dx.doi.org/10.22363/2312-797x-2020-15-3-253-262.

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Carrots are one of the most important root crops in the world. Due to such qualities as plasticity and relative non-wholesome cultivation, carrots are cultivated in most countries of the world. Carrot roots are a valuable source of vitamins A, B, B2, B6, B12, C, RR, E, R. Agroecological conditions of the region allow to cultivate carrots in the open ground. Astrakhan region is not yet characterized by high production rates, as its cultivation can be done only under irrigation. The article considers the influence of agroecological conditions on crop yield and adaptability of garden carrots cult

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15

Da Silva, Gustavo Soares, Gabriella Daier Oliveira Pessoa Carneiro, Valesca Pinheiro Miranda, Christiane Augusta Diniz Melo, Marcelo Rodrigues Dos Reis, and Antonio Alberto Da Silva. "Interaction between timing of foliar fertilizer application and different Metribuzin doses in carrot." Agronomía Colombiana 36, no. 1 (2018): 35–41. http://dx.doi.org/10.15446/agron.colomb.v36n1.68388.

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The objective of this research was to evaluate the potential of the foliar fertilizer FertiG as an attenuator of Metribuzin toxicity in the carrot crop. Experiments were carried out in the 2014 and 2015 crops cycles. The treatments were arranged in a 4 x 3 factorial scheme, four times of foliar fertilizer application and three doses of Metribuzin (0, 288 and 576 g ha-1). In crop 1, the foliar fertilizer with the herbicide (288 g ha-1) increased the commercial yield 5 d before the Metribuzin application. The use of FertiG associated to Metribuzin reduced the production of forked carrots 5 d bef

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16

Giraud, Deborah. "CARROT RUST FLY CONTROL FOR ORGANIC FARMERS." HortScience 25, no. 9 (1990): 1066G—1066. http://dx.doi.org/10.21273/hortsci.25.9.1066.

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The carrot rust fly (Psila rosae) lays eggs in the crowns of carrots, celery, and parsnips. Its larvae are dark brown maggots which burrow into the crown and roots of the plants making them unsalable. This is a pest of economic significance in coastal plantings. This project evaluated several non-chemical strategies available to organic farmers over three growing seasons. These included the use of traps to monitor populations and determine fields where infcstations are likely to occur, parasitic nematodes, the use of trap crops, and row covers as an exclusion technique. Floating row covers wer

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17

Giraud, Deborah. "CARROT RUST FLY CONTROL FOR ORGANIC FARMERS." HortScience 25, no. 9 (1990): 1066g—1066. http://dx.doi.org/10.21273/hortsci.25.9.1066g.

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The carrot rust fly (Psila rosae) lays eggs in the crowns of carrots, celery, and parsnips. Its larvae are dark brown maggots which burrow into the crown and roots of the plants making them unsalable. This is a pest of economic significance in coastal plantings. This project evaluated several non-chemical strategies available to organic farmers over three growing seasons. These included the use of traps to monitor populations and determine fields where infcstations are likely to occur, parasitic nematodes, the use of trap crops, and row covers as an exclusion technique. Floating row covers wer

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18

LeBlanc, J. P. R., and G. Boivin. "A note on the detection of the carrot weevil in Nova Scotia." Phytoprotection 74, no. 2 (2005): 113–15. http://dx.doi.org/10.7202/706041ar.

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The carrot weevil, Listronotus oregonensis [Coleoptera: Curculionidae], is a significant pest of vegetable crops in northeastern North America. However, the species had not been previously detected in Atlantic Canada. In 1985,1986, and 1988, attempts to detect this pest in Nova Scotia were unsuccessful. In 1992, in one of three carrot (Daucus carota) fields monitored using thigmotactic wooden-plate traps baited with fresh carrots, six individuals were captured during the spring migration of the inseetfrom overwintering sites into a carrot field near Great Village, Nova Scotia.

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19

Brainard, Daniel C., and D. Corey Noyes. "Strip Tillage and Compost Influence Carrot Quality, Yield, and Net Returns." HortScience 47, no. 8 (2012): 1073–79. http://dx.doi.org/10.21273/hortsci.47.8.1073.

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Management practices that build soil organic matter—including reduced tillage, cover cropping, and compost applications—may be useful for protecting vulnerable crops from extreme weather events, reducing energy costs, and suppressing pests in carrot (Daucus carota subsp. sativa) production systems. The primary objective of this research was to assess the effects of strip tillage, compost, and carrot cultivar on carrot quality, yield, and profitability. An important secondary objective was to evaluate the impact of tillage and compost on establishment of important weeds in carrot systems—includ

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20

Antolínez, Moreno, Ontiveros, et al. "Seasonal Abundance of Psyllid Species on Carrots and Potato Crops in Spain." Insects 10, no. 9 (2019): 287. http://dx.doi.org/10.3390/insects10090287.

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Psyllids (Hemiptera: Psylloidea) can transmit the phloem restricted bacterium ‘Candidatus Liberibacter solanacearum’ (Lso). In Europe, Lso causes severe losses to carrot and represents a threat to the potato industry. A rising concern is Lso transmission from carrot to potato and within potato, and this has driven the need for monitoring populations of psyllid species which could serve as vectors on both crops. This would provide a fundamental understanding of the epidemiology of Lso. Different sampling methods were used to survey populations of psyllid species in commercial carrot and potato

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Nikmatullah, Aluh, Karwati Zanawi, Khaerul Muslim, Herman Suheru, Nurrachman, and Rukmini Kusmarwiyah. "Diseminasi Teknologi Budidaya Tanaman Wortel Ramah Lingkungan Di Dataran Rendah." Jurnal SIAR ILMUWAN TANI 2, no. 1 (2021): 1–9. http://dx.doi.org/10.29303/jsit.v2i1.40.

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The increasing demand for a good quality of carrot tubers has yet been achieved, partly due to limitation in cultivation area. Extension of cultivation to low land has been attempted and suitable cultivation technology with yields 17.5 – 25 ton/ha has been developed. However, cultivation of carrot in lowlands is very limited as farmers assume that carrots cannot be cultivated in the lowlands. To promote this, a community service (PKM) aimed to disseminate environmentally-friendly carrot cultivation technology in the lowlands has been undertaken in Bagik Polak Village, Labuapi District, West Lo

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22

Jiménez, B., A. Austin, E. Cloete, C. Phasha, and N. Beltrán. "Biological risks to food crops fertilized with Ecosan sludge." Water Science and Technology 55, no. 7 (2007): 21–29. http://dx.doi.org/10.2166/wst.2007.122.

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This paper presents the microbial effects of using Ecosan sludge in agriculture. Sludge from KwaZulu Natal in South Africa having a helminth ova content of around 30 HO/gTS, faecal coliforms of 106 CFU/gTS, faecal streptococi of 106 CFU/gTS and Salmonella spp. of 105 CFU/gTS were applied to soils to grow carrots and spinach at different rates. Results showed that helminth ova content in crops was always greater in leaves than in stems, with a content varying from 2 to 15 HO/gTS for spinach and sludge application rates of sludge of 0–37.5 ton/ha and from 2–8 HO/gTS in carrots crops for sludge a

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23

Rabinovich, G. Yu, N. V. Fomicheva, and Yu D. Smirnova. "Efficiency of liquid-phase biological preparations when cultivating carrots on peat soils." Proceedings of the National Academy of Sciences of Belarus. Agrarian Series 59, no. 3 (2021): 319–29. http://dx.doi.org/10.29235/1817-7204-2021-59-3-319-329.

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One of priority directions in cultivation of carrots is development of new techniques in technologies allowing to increase not only the yield, but also the quality of root crops. Treatment of vegetative plants with various biological products, growth regulators and hemin preparations is the most promising technological method for increasing carrots yield and quality. The purpose of the research is to study the effect of liquid-phase biological means of various natures on yield and quality of Karini variety carrots grown on peat soil. The experiment had been carried out in 2015-2016 on peat soi

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24

Gavelienė, Virgilija, Božena Šocik, Elžbieta Jankovska-Bortkevič, and Sigita Jurkonienė. "Plant Microbial Biostimulants as a Promising Tool to Enhance the Productivity and Quality of Carrot Root Crops." Microorganisms 9, no. 9 (2021): 1850. http://dx.doi.org/10.3390/microorganisms9091850.

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The interest in studies focused on applying probiotic microorganisms is increasing due to sustainable agriculture development. In this research, we aimed to evaluate the impact of two commercial plant probiotics—ProbioHumus and NaturGel on carrot growth, yield, and quality in organic and nonorganic production systems. The research was carried out under laboratory and field conditions. Plants were treated with probiotics (2 L/ha) at the nine leaves stage. Biometrical measurements and chemical analyses were performed at a maturation stage. The average weight of carrot roots increased by 17 and 2

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25

Khakbazan, M., R. Henry, J. Haung, et al. "Economics of organically managed and conventional potato production systems in Atlantic Canada." Canadian Journal of Plant Science 95, no. 1 (2015): 161–74. http://dx.doi.org/10.4141/cjps-2014-050.

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Khakbazan, M., Henry, R., Haung, J., Mohr, R., Peters, R., Fillmore, S., Rodd, V. and Mills, A. 2015. Economics of organically managed and conventional potato production systems in Atlantic Canada. Can. J. Plant Sci. 95: 161–174. A rotation study was initiated in 2007 in Prince Edward Island (PEI), Canada, to determine the economic effects of converting from conventional potato production to organically managed systems. Seven organically managed rotations, which used various crop combinations to help control pests and soil-borne diseases as well as maintain nutrient levels, were assessed for 2

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Manshadi, Faezeh D., Martin Karpiscak, and Charles P. Gerba. "Enteric bacterial contamination and survival on produce during irrigation with dairy wastewater in the field." Journal of Water Reuse and Desalination 3, no. 2 (2013): 102–10. http://dx.doi.org/10.2166/wrd.2013.161.

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The goals of this study were to quantify enteric bacterial contamination and survival on several different types of produce during irrigation with wastewater from a dairy operation. Dairy wastewater was used to irrigate three different types of vegetable crops: lettuce, carrot, and bell pepper. This study was conducted over two consecutive growing seasons. Irrigation water and vegetable samples were examined for Escherichia coli and Clostridium perfringens. In the dairy wastewater, E. coli and C. perfringens concentrations averaged 8.2 × 107MPN/100 mL and 5.0 × 104CFU per 100 mL, respectively.

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27

Dalenberg, J. W., and W. van Driel. "Contribution of atmospheric deposition to heavy-metal concentrations in field crops." Netherlands Journal of Agricultural Science 38, no. 3A (1990): 369–79. http://dx.doi.org/10.18174/njas.v38i3a.16594.

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Lolium multiflorum, spring wheat cv. Adonis, carrots and spinach were grown in the field and in a dust-free growth chamber in pots containing soil labelled with 109Cd and 210Pb. The contribution of atmospheric Cd and Pb deposition to plant concn was examined by isotope dilution. Atmospheric deposition contributed 73-95% to the Pb concn of leafy material of L. multiflorum, carrots, spinach, wheat grain and wheat straw. Cd deposition was only significant in wheat grain and straw (21-48%). (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Jackson, Marcus B., Shanqianq Ke, Barbara A. Laschkewitsch, and Chiwon W. Lee. "549 PB 099 VEGETABLE PRODUCTION IN NORTH DAKOTA." HortScience 29, no. 5 (1994): 510b—510. http://dx.doi.org/10.21273/hortsci.29.5.510b.

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The growing conditions of North Dakota are characterized by short frost-free seasons (< 120 days), long photoperiods, a large fluctuation in summer temperatures, and fertile soils especially in the Red River Valley region. Commercial production of vegetables in the state has been increasing with renewed interests in fresh and processed products. Currently, about 1,200 acres are devoted to vegetable production in the state with most of it conentrated in the eastern part of the state. This excludes 158,000 acres used for potato production. The top ten vegetables, excluding potato, are onion,

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Lee, Ing-Ming, Kristi D. Bottner, Joseph E. Munyaneza, et al. "Carrot Purple Leaf: A New Spiroplasmal Disease Associated with Carrots in Washington State." Plant Disease 90, no. 8 (2006): 989–93. http://dx.doi.org/10.1094/pd-90-0989.

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During the growing seasons of 2003 and 2004, a disease occurred in several carrot crops in south central Washington with symptoms suggestive of infection by phytopathogenic mollicutes (phytoplasmas and spiroplasmas). In the fall, many affected carrot plants exhibited extensive purple or yellow-purple leaf discoloration, general stunting of shoots and taproots, and formation of bunchy, fibrous secondary roots. For detection of the putative causal agents, polymerase chain reaction (PCR) assays were performed using primers specific to phytoplasmas as well as primers specific to plant-pathogenic s

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Munyaneza, J. E., V. G. Sengoda, L. Sundheim, and R. Meadow. "First Report of “Candidatus Liberibacter solanacearum” Associated with Psyllid-Affected Carrots in Norway." Plant Disease 96, no. 3 (2012): 454. http://dx.doi.org/10.1094/pdis-10-11-0870.

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Carrot (Daucus carota) plants with symptoms resembling those associated with the carrot psyllid Trioza apicalis and the bacterium “Candidatus Liberibacter solanacearum” (1–4) were observed in 70 to 80% of commercial fields and experimental plots in southeastern Norway from late July to mid-September of 2011; all cultivars grown were affected with approximately 10 to 100% symptomatic plants per field. T. apicalis, a pest of carrot in northern and central Europe, including Norway, can cause as much as 100% crop loss and is associated with “Ca. L. solanacearum” (1–4). Symptoms on affected plants

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Caron, Jean, Guillaume Théroux Rancourt, Carl Bélec, Nicolas Tremblay, and Léon-Étienne Parent. "Nitrogen budget for fertilized carrot cropping systems in a Quebec organic soil." Canadian Journal of Soil Science 94, no. 2 (2014): 139–48. http://dx.doi.org/10.4141/cjss2013-104.

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Caron, J., Rancourt, G. T., Bélec, C., Tremblay, N. and Parent, L.-É. 2014. Nitrogen budget for fertilized carrot cropping systems in a Quebec organic soil. Can. J. Soil Sci. 94: 139–148. After reclamation, organic soils tend to shift from net N immobilization to net N mineralization. The N amounts mineralized annually can be sufficient to cover the N needs of the crop, reducing the need for supplemental N fertilization. The objective of this study was to assess N budgets and to infer the apparent N mineralization in fertilized and unfertilized carrot (Daucus carota L.) crops in an organic soi

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Nijabat, Aneela, Adam Bolton, Muhammad Mahmood-ur-Rehman, et al. "Cell Membrane Stability and Relative Cell Injury in Response to Heat Stress during Early and Late Seedling Stages of Diverse Carrot (Daucus carota L.) Germplasm." HortScience 55, no. 9 (2020): 1446–52. http://dx.doi.org/10.21273/hortsci15058-20.

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Heat waves occur with more regularity and they adversely affect the yield of cool season crops including carrot (Daucus carota L.). Heat stress influences various biochemical and physiological processes including cell membrane permeability. Ion leakage and increase in cell permeability are indicators of cell membrane stability and have been used to evaluate the stress tolerance response in numerous crops and inform plant breeders for improving heat tolerance. No study has been published about the effects of heat stress on cell membrane stability and relative cell injury of carrot. Therefore, t

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Gasanov, S. R., and S. A. Mammadova. "CONSEQUENCES OF PRESOWING INFLUENCE OF LOW AND VARIABLE TEMPERATURES ON CARROT AND RADISH SEEDS." Vegetable crops of Russia, no. 3 (June 14, 2019): 62–64. http://dx.doi.org/10.18619/2072-9146-2019-3-62-64.

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The study of the dynamics of plant growth and yield of vegetable crops (carrot variety Absheron winter (Daucus carota subsp. sativus (Hoffm.) Schьbl.) and radish variety Virovsky white (Raphanus sativus var.radicula Pers.)) was conducted in the field conditions after presowing exposure to different temperatures: I option – sowing of seeds exposed to low temperatures (for 15 days the swollen for 24 hours seeds were kept at a temperature of 0±1°С); Option II - sowing of seeds exposed to variable temperatures (for 5 days, the swollen for 24 hours seeds were exposed to variable temperatures of + 2

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Zavadil, J. "The effect of municipal wastewater irrigation on the yield and quality of vegetables and crops." Soil and Water Research 4, No. 3 (2009): 91–103. http://dx.doi.org/10.17221/40/2008-swr.

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The effect of municipal wastewater irrigation on the yield and quality of vegetables and crops was studied by means of pot and lysimetric experiments. The pots were seeded with lettuce salad, radishes, and carrots in all experimental years; the lysimeters were planted with early potatoes in 2005 and 2007, and with sugar beet in 2006. Secondary-treated wastewater (in 2005) or only primary-treated wastewater (in 2006 and 2007) were used in the experiments. The control treatment involved the irrigation with water from a local well (in 2005) or public water supply (in 2006 and 2007). Contrarily to

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Stillson, Patrick T., and Zsofia Szendrei. "Identifying Leafhopper Targets for Controlling Aster Yellows in Carrots and Celery." Insects 11, no. 7 (2020): 411. http://dx.doi.org/10.3390/insects11070411.

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Aster yellows phytoplasma (Candidatus Phytoplasma asteris) is a multi-host plant pathogen and is transmitted by at least 24 leafhopper species. Pathogen management is complex and requires a thorough understanding of vector dynamics. In the American Midwest, aster yellows is of great concern for vegetable farmers who focus on controlling one vector, Macrosteles quadrilineatus—the aster leafhopper. However, vegetable-associated leafhopper communities can be diverse. To investigate whether additional species are important aster yellows vectors, we surveyed leafhopper communities at commercial cel

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Konstantinović, Bojan, Milena Popov, Nataša Samardžić, and Tijana Stojanović. "The weeds in root vegetables and possibilities of their control." Biljni lekar 48, no. 6 (2020): 646–53. http://dx.doi.org/10.5937/biljlek2006646k.

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The limited number of permitted herbicides for the application in the crops of carrots, red beet, celery and parsnip, as well as the diversity of weeds occurring in these crops, make the successful weed control difficult, due to which the appli-cation of preventive measures is necessary to reduce the number of weeds in the fields during the vegetation as much as possible. The preventive measures include the use of mulch, as well as the application of the crop rotation. Currently, for the application in carrots several herbicides based on active substances pendimethalin, clethodim and propaquiz

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Vanyushkina, I. A., N. P. Kushnareva, and Y. G. Mikheev. "THE EFFECTIVENESS OF PROTECTIVE MEASURES FROM THE DISEASE OF CARROTS." Vegetable crops of Russia, no. 6 (December 10, 2018): 91–93. http://dx.doi.org/10.18619/2072-9146-2018-6-91-93.

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In 2016, 2017 studies on the influence of fungicides on the development of diseases on the leaf surface of carrots were carried out. To study were taken fungicides Akanto Plus, Signum, fast and Rex duo. The research was carried out on the varieties of carrots of the Primorskyaya 22 and Taiphun. The work was carried out at the seaside vegetable Experimental Station – branch of the federal State budget scientific institution "Federal Scientific Center of vegetable growing" in coastal zone of Primorsky Krai in conditions of monsoon climate with annual quantity Precipitation 700-800 mm, most of wh

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Kora, C., G. J. Boland, and M. R. McDonald. "First Report of Foliar and Root Infection of Carrot by Sclerotinia minor in Ontario, Canada." Plant Disease 86, no. 12 (2002): 1406. http://dx.doi.org/10.1094/pdis.2002.86.12.1406b.

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In 2000 and 2001, commercial carrots (Daucus carota L.) cv. Cellobunch grown in organic soils in Ontario, Canada, developed water-soaked, dark olive-green lesions on leaves that were in contact with soil. Lesions spread rapidly to petioles and adjacent leaves when prolonged moist conditions occurred within the canopy and persisted through harvest. A soft rot lesion was observed on the crown of one carrot root in the field, but no disease symptoms were detected on carrot samples in cold storage. Symptoms on leaves and roots of carrots were similar to sclerotinia rot caused by Sclerotinia sclero

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Sciubba, Fabio, Alberta Tomassini, Giorgio Giorgi, et al. "NMR-Based Metabolomic Study of Purple Carrot Optimal Harvest Time for Utilization as a Source of Bioactive Compounds." Applied Sciences 10, no. 23 (2020): 8493. http://dx.doi.org/10.3390/app10238493.

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The carrot (Daucus carota L.), one of the most important vegetable crops in the world, is recognized as a source of different compounds with healthy properties. Due to their high content of anthocyanins, purple carrots have been used as a natural colorant source to face the increasing demand of consumers for non-synthetic products. However, the root developmental stage can greatly affect the phytochemical composition and, in this regard, the identification of chemical biomarkers for the optimal harvest time would be of paramount interest both from a nutritional point of view and for the agri-f

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Porto, Vânia CN, Francisco Bezerra Neto, Jailma SS de Lima, Aurélio P. Barros Júnior, and Joserlan N. Moreira. "Combination of lettuce and rocket cultivars in two cultures intercropped with carrots." Horticultura Brasileira 29, no. 3 (2011): 404–11. http://dx.doi.org/10.1590/s0102-05362011000300025.

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The intercropping practice is a viable technological option for the production of vegetables and the success of the association between crops will be greater the greater the complementarity between them. The present work was conducted from June to November 2006, at Universidade Federal Rural do Semi-Árido, Rio Grande do Norte State, Brazil, to evaluate the productive performance of two lettuce and two rocket cultivars in two cultures in strip-intercropping systems. The experimental design was randomized complete blocks, with five replications and treatments arranged in a 2 x 2 + 2 factorial. T

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Simon, Philipp W. "Carrots and Other Horticultural Crops as a Source of Provitamin A Carotenes." HortScience 25, no. 12 (1990): 1495–99. http://dx.doi.org/10.21273/hortsci.25.12.1495.

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Quintana-González de Chaves, María, Gabriela R. Teresani, Estrella Hernández-Suárez, et al. "‘Candidatus Liberibacter Solanacearum’ Is Unlikely to Be Transmitted Spontaneously from Infected Carrot Plants to Citrus Plants by Trioza Erytreae." Insects 11, no. 8 (2020): 514. http://dx.doi.org/10.3390/insects11080514.

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Bacteria belonging to ‘Candidatus Liberibacter spp.’ are associated with various severe diseases in the five continents. The African citrus psyllid Trioza erytreae (Hemiptera: Triozidae) is an efficient vector of citrus huanglongbing-HLB disease, absent in the Mediterranean basin. This psyllid is currently present in the islands and mainland Portugal and Spain, where the prevalence of ‘Ca. Liberibacter solanacearum’ (CaLsol) associated to a carrot disease is high. Trioza erytreae normally feeds on citrus plants but has also been observed on other crops. It would be a great concern to the Medit

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Barrett, Michael, Michael Barrett, John Soteres, and David Shaw. "Carrots and Sticks: Incentives and Regulations for Herbicide Resistance Management and Changing Behavior." Weed Science 64, SP1 (2016): 627–40. http://dx.doi.org/10.1614/ws-d-15-00171.1.

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Although the problem of herbicide resistance is not new, the widespread evolution of glyphosate resistance in weed species such as Palmer amaranth (Amaranthus palmeriS. Wats.), common waterhemp (Amaranthus rudisSauer), and kochia [Kochia scoparia(L.) Schrad.] raised awareness throughout the agricultural community of herbicide resistance as a problem. Glyphosate-resistant weeds resulted in the loss of a simple, single herbicide option to control a wide spectrum of weeds that gave efficacious and economical weed management in corn (Zea maysL.), soybean [Glycine max(L.) Merr.], and cotton (Gossyp

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Asmar, Asmar, Amrizal Saidi, and Masliyunas Masliyunas. "HUBUNGAN KESUBURAN TANAH DENGAN PRODUKTIVITAS TANAMAN." Jurnal Solum 7, no. 1 (2010): 27. http://dx.doi.org/10.25077/js.7.1.27-36.2010.

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A research about relationship between soil properties and crop yield was conducted in Pandai Sikek, Tanah Datar Region, center for cabbage and carrot production, West Sumatra in 2004 and 2005. Soil samples were collected from rainfed paddy soils by purposive random sampling. Soil samples were analyzed in Soil Laboratory, Agriculture Faculty and Agriculture Polytechnique Laboratory, Andalas University. Several soil physical properties analysed were soil bulk density and total soil pores by using gravimetric method, permeability with de Boodt method, soil water content at several pF values using

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Westerveld, Sean M., Alan W. McKeown, Mary Ruth McDonald, and Cynthia D. Scott-Dupree. "Assessment of Chlorophyll and Nitrate Meters as Field Tissue Nitrogen Tests for Cabbage, Onions, and Carrots." HortTechnology 14, no. 2 (2004): 179–88. http://dx.doi.org/10.21273/horttech.14.2.0179.

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Nutrient management legislation has prompted an evaluation of alternative nitrogen (N) management techniques. SPAD (Soil Plant Analysis Development) chlorophyll and Cardy nitrate (NO3-) meters were evaluated for their potential as tissue nitrogen tests in cabbage (Brassica oleracea var. capitata), onions (Allium cepa), and carrots (Daucus carota subsp. sativus). Cabbage, carrots, and onions were grown on both organic and mineral soils in Ontario, Canada in 2000 and 2001. Nitrogen was applied at five rates to cabbage and carrots and three rates to onions ranging from 0 to 200% of current provin

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Suarez, Luz Angelica, Andrew Robson, John McPhee, Julie O’Halloran, and Celia van Sprang. "Accuracy of carrot yield forecasting using proximal hyperspectral and satellite multispectral data." Precision Agriculture 21, no. 6 (2020): 1304–26. http://dx.doi.org/10.1007/s11119-020-09722-6.

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Abstract Proximal and remote sensors have proved their effectiveness for the estimation of several biophysical and biochemical variables, including yield, in many different crops. Evaluation of their accuracy in vegetable crops is limited. This study explored the accuracy of proximal hyperspectral and satellite multispectral sensors (Sentinel-2 and WorldView-3) for the prediction of carrot root yield across three growing regions featuring different cropping configurations, seasons and soil conditions. Above ground biomass (AGB), canopy reflectance measurements and corresponding yield measures

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McBride, M. B. "Arsenic and Lead Uptake by Vegetable Crops Grown on Historically Contaminated Orchard Soils." Applied and Environmental Soil Science 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/283472.

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Transfer of Pb and As into vegetables grown on orchard soils historically contaminated by Pb arsenate pesticides was measured in the greenhouse. Lettuce, carrots, green beans, and tomatoes were grown on soils containing a range of total Pb (16.5–915 mg/kg) and As (6.9–211 mg/kg) concentrations. The vegetables were acid-digested and analyzed for total Pb and As using ICP-mass spectrometry. Vegetable contamination was dependent on soil total Pb and As concentrations, pH, and vegetable species. Arsenic concentrations were the highest in lettuce and green beans, lower in carrots, and much lower in

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Jimenez, B., A. Austin, E. Cloete, and C. Phasha. "Using Ecosan sludge for crop production." Water Science and Technology 54, no. 5 (2006): 169–77. http://dx.doi.org/10.2166/wst.2006.560.

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This paper presents the microbial risks associated with the reuse of Ecosan sludge in agriculture. Sludge from KwaZulu Natal Province in South Africa with a helminth ova content of 30 HO/g TS, faecal coliforms of 106 CFU/g TS, faecal streptococci of 106 CFU/g TS and Salmonella spp. of 105 CFU/g TS was used for this purpose. Applying different rates of sludge to spinach and carrots resulted in an increase in bacterial and helminth ova counts in crops as the quantity of sludge increased. The helminth ova content in crops was always greater in leaves than in stems, with a content varying from 2 t

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Munyaneza, J. E., T. W. Fisher, V. G. Sengoda, S. F. Garczynski, A. Nissinen, and A. Lemmetty. "First Report of “Candidatus Liberibacter solanacearum” Associated with Psyllid-Affected Carrots in Europe." Plant Disease 94, no. 5 (2010): 639. http://dx.doi.org/10.1094/pdis-94-5-0639a.

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Carrot (Daucus carota) plants with symptoms resembling those of carrot psyllid (Trioza apicalis) damage (3,4) were observed in 14 commercial fields in southern Finland in August 2008; all cultivars grown were affected at approximately 5 to 35% symptomatic plants per field. T. apicalis, a pest of carrots in northern and central Europe, can cause up to 100% crop loss (3,4). Symptoms on affected plants included leaf curling, yellow and purple discoloration of leaves, stunted growth of shoots and roots, and proliferation of secondary roots (3,4). Given recent association of liberibacter with sever

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Sokolova, L. M., A. F. Bukharov, and M. I. Ivanova. "Application of sequential selections in the selection of table carrots for resistance to Fusarium sp. and Alternaria sp." Agrarian science, no. 6 (July 18, 2020): 78–83. http://dx.doi.org/10.32634/0869-8155-2020-339-6-78-83.

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Relevance. Research is devoted to increasing the horizontal, polygenic resistance of table carrots of the Surazhevskaya variety to Fusarium sp. and Alternaria sp. infections. The aim of the research was to conduct sequential (at different stages of development) and multiple (over several reproductive generations) individual selections of table carrot plants resistant to a complex of pathogens using traditional phytopathological methods.Methods. The research was carried out in 2011–2019 in the Department of breeding and seed production in the laboratory of root crops and onions of the All-Russi

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