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Inheritance and nature of drought tolerance in common bean (Phaseolus vulgaris, L.) [electronic resource].

By:

Badr, L. A. A

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Language: English Summary language: Arabic Description: p.1271-1292Other title:

توريث و طبيعة المقاومة لتحمل الجفاف في الفاصوليا [Added title page title]

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Annals of agricultural science, Moshtohor, 2004 v.42 (3) [electronic resource].

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In: Annals of Agricultural Science, Moshtohor 2005.v.43(1)Summary: Crosses were made between the cultivars Tema and Oxyra, which are tolerant to drought, as well as cv. Giza-6, Emy and Sigme, which are susceptible to drought, to study the inheritance and nature of drought tolerance and some related characteristics which may have direct or indirect effects on drought tolerance. There were highly significant differences between the previously mentioned parental cultivars concerning root characters, i.e. root length, fresh and dry weight under normal irrigation and drought conditions in pot experiment. There were highly significant increase percentages in root length in P1, P2 and F. for each cross under water stress conditions compared with this percentage under normal irrigation. On the other hand, there were highly significant decrease percentages in root fresh and dry weight under water conditions. There were slight partial dominance for high root length and fresh and dry weight.

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Crosses were made between the cultivars Tema and Oxyra, which are tolerant to drought, as well as cv. Giza-6, Emy and Sigme, which are susceptible to drought, to study the inheritance and nature of drought tolerance and some related characteristics which may have direct or indirect effects on drought tolerance. There were highly significant differences between the previously mentioned parental cultivars concerning root characters, i.e. root length, fresh and dry weight under normal irrigation and drought conditions in pot experiment. There were highly significant increase percentages in root length in P1, P2 and F. for each cross under water stress conditions compared with this percentage under normal irrigation. On the other hand, there were highly significant decrease percentages in root fresh and dry weight under water conditions. There were slight partial dominance for high root length and fresh and dry weight.

Summary in Arabic.

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