The tender green leaves are an important food source in Africa and are prepared as a pot herb, like spinach. cowpea, which can be harvested with conventional grain combines. In a crop rotation program, they can significantly improve soil nitrogen levels by nitrogen fixation or by incorporation in soil as a green manure crop. Temperature affected this pattern. Nitrogen. A. craccivora caused pod shrivelling at the young and mid‐fill pod stages, on which the aphid was more fecund. "isUnsiloEnabled": true "crossMark": true, "languageSwitch": true, Cowpea is eaten by deer as forage, and is commonly used in food plots for deer. A variety of birds, including wild turkey, eat the seeds and the plant can be used by quail as cover. 5 Nitrogen concentration in different parts of cowpea varieties during the growing 45 season..... 4. Sinclair, T.R. "figures": false, and Base temperatures for leaf appearance and leaf expansion were 16 and 20 °C respectively. Individual leaves died while pods at the same node were filling. If you should have access and can't see this content please, The effect of temperature change on the expansion of individual leaves of, Diurnal changes in acetylene reduction in field grown cowpeas and soybeans, Expansion of leaf area per plant in field bean (, The effect of temperature on the growth of individual leaves of, The effect of temperature on the relative leaf growth rate of crops of, The water relations of the field bean crop, Philosophical Transactions of the Royal Society, London, Series, Climatic response of individual plants: the broad bean, An exploration of the carbon economy of the tobacco plant. Render date: 2021-01-17T12:09:33.005Z The pattern of leaf growth and death was followed in stands of cowpea grown in the field at Ibadan, Nigeria. The mean rate of expansion of individual leaves increased with temperature proportionately more than the duration decreased, hence final leaf size increased with temperature. growth stages..... 4. High levels of N in the soil may cause excessive vine growth, delayed maturity, pod shattering and low yield. In an effort to elucidate the physiological processes involved in cowpea differential growth response offour major USA cowpea cultivars ... taken during two growth stages: (1) vegetative growth stage, 31–32daysafterplanting;(2)floweringstage,45–46daysafter planting. Flower thrips feast on it during flowering, pod borers attack its pods during pod growth, and bruchid weevils attack the seeds postharvest. The following conditions for … Field studies were conducted to determine cowpea [Vigna unguiculata (L.) Walp.] Lawn, R.J. Query parameters: { Summary Cowpea, Vigna unguiculata was infested at the young, mid‐fill and mature pod growth stages with, respectively, one, two and three pre‐reproductive adult apterae of Aphis craccivora per pod in a screen house. Littleton, E. J. Elstonff, J. "clr": true, They thrive in hot, moist zones where corn flourishes, but require more heat for optimum growth (263). "subject": true, and 1984. Drought at the preflowering stage in cowpea can reduce the yield potential by 360 kg/ha. Ranganathan, R. "isLogged": "0", Copyright © Cambridge University Press 1979, Hostname: page-component-77fc7d77f9-mhpm4 Drought occurring at the reproductive stage is the most critical phase affecting cowpea production. Ludlow, M.M. "comments": true, In the context of varieties used for the present study, vegetative growth was the most sensitive stage to water stress. B. yuanmingense. It has a strong taproot with many lateral roots, the taproot reaches up to eight feet depth within eight weeks. Bastos, Edson Alves Monteith, J. L. genotypes were used for drought tolerance evaluation at germination stage being 29 from Iberian Peninsula, 26 originally collected from 17 different worldwide countries and three used as reference.In a previous study, the majority of the cowpea genotypes were already characterized using single nucleotide polymorphism (SNP) through the … Flower thrips feast on it during flowering, pod shattering and low yield tender., under high temperature regime, cowpea is grown as … the cowpea is! R ) stages begin at flowering and include pod development, seed development, at... To manage your cookie settings taken weekly starting 2 July 2014 until 13 Aug..., J. L. and Elstonff, J, B. R. and Roberts, J. and Monteith, J. Monteith. Relative to irrigated conditions with respect to yield formation every stage of its life.... Control the weed in cowpea farming produce many trifoliate leaves that are smooth and shiny boiled as a pot growth stages of cowpea. 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