首页> 外文期刊>Asian Journal of Plant Sciences >Induction of genetic variation in cowpea (Vigna unguiculata L. Walp.) by gamma irradiation.
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Induction of genetic variation in cowpea (Vigna unguiculata L. Walp.) by gamma irradiation.

机译:通过γ射线诱导cow豆(Vigna unguiculata L. Walp。)的遗传变异。

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摘要

Cowpea IT84S2246D mutants were screened for useful agronomic traits. Dry seeds of cowpea IT 84S2246D were exposed to gamma irradiation from cobalt 60 source at 196 and 245 Gy dosages. The non-irradiated parent was used as the control. Identification and selections were carried out at the second generation (M< sub>2). The eight mutants selected from 245 Gy population included plants with light green pods, plants with leaflets having tendrils, early maturing plants with broad leaflets, plants with pigmented pods and plants with pods above canopy. They also included plants with dark green pods, plants with wide angled pods and pigmented plants with hairy pods. The two mutants selected from 196 Gy populations were early maturing and dwarf plants. The selected mutants were found to possess useful agronomic traits capable of conferring on them selection advantage for increased yield, easy harvesting and insect tolerance.
机译:筛选了pea豆IT84S2246D突变体的有用农艺性状。将豆IT 84S2246D的干燥种子从钴60来源以196和245 Gy剂量接受伽马射线辐照。未照射的亲本用作对照。在第二代(M 2 )进行鉴定和选择。从245 Gy种群中选择的8个突变体包括具有浅绿色豆荚的植物,具有卷须的小叶的植物,具有宽小叶的早熟植物,具有有色豆荚的植物和在冠层以上的豆荚的植物。它们还包括具有深绿色豆荚的植物,具有广角豆荚的植物和具有毛豆荚的有色植物。从196个Gy种群中选择的两个突变体是早熟和矮化植物。发现所选择的突变体具有有用的农艺性状,能够赋予它们选择优势,以增加产量,易于收获和对昆虫具有耐受性。

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