5/18/2023 0 Comments Phototime in x ray a technique![]() ![]() 1986: The response of cowpea (Vigna unguiculata (L.) Walp.) to foliar sprays of nitrogen during the reproductive stage of development Field Crops Research 14(2): 181-191 sesquipedalis) Legume Research 29(2): 96-101 2006: Association analysis in segregating generations of inter subspecies crosses of cowpea - (Vigna unguiculata ssp. ![]() 2017: Screening of cowpea for aluminium tolerance in relation to growth, yield and related traits Legume Research 40(3): 434-438 Walp) cultivars Journal of Food, Agriculture and Environment 4(2): 191-195 ![]() 2006: Screening for tolerance of stress temperature during germination of twenty five cowpea (Vigna unguiculata L. 1986: The response of cowpea vigna unguiculata to foliar sprays of nitrogen during the reproductive stage of development Field Crops Research 14(2): 181-192 1976: Use of x rays as a biological micro technique an example investigating the reproductive development of cowpea vigna unguiculata Annals of Applied Biology 84(3): 433-436 1982: Quick screening of cowpea vigna unguiculata genotypes for manganese tolerance during vegetative and reproductive growth Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 145(5): 423-435Įly, R.V. 1980: Evaluation of cowpea vigna sinensis germ plasm against cowpea mosaic virus Indian Journal of Mycology and Plant Pathology 10(2): XVII 1996: A stability analysis of time to flowering as a screen for responsiveness to temperature and photoperiod in cowpea (Vigna unguiculata) Euphytica 88(1): 77-84 2007: Development and evaluation of drought resistant mutant germ-plasm of Vigna unguiculata Water SA 33(3): 381-386Ĭraufurd, P.Q. Effect of temperature and saturation deficit on time to flowering in photoperiod-insensitive genotypes Experimental Agriculture 32(1): 13-28ĭe-Ronde, J.A. 1996: Development in cowpea (Vigna unguiculata). 1986: A quantitative assessment of larval infestation level required for intensive screening of cowpea vigna unguiculata ssp unguiculata for resistance to the black cowpea moth cydia ptychora lepidoptera tortricidae Insect Science and its Application 7(4): 565-568Ĭraufurd, P.Q. 1980: Evaluation of the germ plasm of vegetable cowpea vigna unguiculata ssp cylindrica for selecting desirable stocks Indian Journal of Agricultural Sciences 50(4): 323-326 Effects of temperature and photoperiod on time to flowering in photoperiod-sensitive genotypes and screening for photothermal responses Experimental Agriculture 32(1): 29-40 1983: A quantitative model of reproductive development in cowpea in relation to photoperiod and temperature, and implications for screening germplasm Annals of Botany 51(4): 531-543Ĭraufurd, P.Q. Considered together as a quantitative model, these relationships suggest simple field methods for screening genotypes to determine photo-thermal response surfaces. ![]() The value of the critical photoperiod is temperature-dependent and a further equation, derived from the first 2, predicts this relationship. Thus in different circumstances, flowering is controlled exclusively by either mean temperature or photoperiod. When the equations describing these 2 responses are solved, the time to flower in any given photothermal regime is predicted by whichever solution calls for the greater delay in flowering. Linear relationships were established between the reciprocal of the times taken to flower, and mean diurnal temperature and photoperiod. The times to first appearance of flower buds, open flowers and mature pods were recorded. C) were imposed on nodulated plants of 11 cowpea accessions grown in pots in growth cabinets. C) combined with a single day temperature (30.degree. Factorial combinations of 4 photoperiods (10 h, 11 h 40 min, 13 h 20 min and 5 h) and 3 night temperatures (14.degree., 19.degree. ![]()
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