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首页> 外文期刊>International Journal of Plant Breeding and Genetics >Studies of Leaflet Mutants in Mungbean (Vigna radiata (L.) Wilczek)
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Studies of Leaflet Mutants in Mungbean (Vigna radiata (L.) Wilczek)

机译：绿豆（Vigna radiata（L.）Wilczek）小叶突变体的研究

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摘要

The aim of the current study is investigation of multiple leaflets in mungbean and to study the effects of multiple leaflets to the desirable quantitative characters through correlation studies. Two multiple leaflet mutants were obtained from gamma-irradiation and used to study correlation with the agronomic features. The higher doses of gamma ray irradiation in mungbean will provide enough scope to develop a wide range of variation in many desirable characteristics like increase in leaflets/leaf andvariation in shape and size of leaf lamina. Increase in multi-foliation may increase the biomass production, which could make a positive impact on seed yield by increasing the transfer of assimilate from source to sink. Most of the variation in the lamina shape was observed in the trifoliate leaves of higher doses of gamma ray irradiation, which turned into tetrafoliate or pentafoliate with much variation in shape and size and lamina like crumpled, lanceolate, ovate, lobed were observed in both the varieties. Observation of mutants like multifoliate may be progressed in the M_2 generation through directed selection and these stable mutants might be used as donors for restructuring mungbean genotypes. Higher values for phenotypic and genotypic coefficient of variability for number of leaves suggest that there is a possibility for improving seed yield through direct selection for number of leaves with pods/plant and plant height.
机译：当前研究的目的是调查绿豆中的多叶，并通过相关性研究来研究多叶对理想的定量特征的影响。从伽马射线辐照中获得了两个多重小叶突变体，并用于研究与农艺学特征的相关性。绿豆中较高剂量的伽马射线辐照将提供足够的空间，以发展许多理想特性的广泛变化，例如小叶/叶片的增加以及叶片的形状和大小的变化。多叶化的增加可能会增加生物量的产量，这可能会通过增加同化物从源到汇的转移而对种子产量产生积极影响。在较高剂量的伽马射线辐照下，三叶形叶片中观察到了大多数的叶片形状变化，这些叶片变成了形状和大小变化很大的四叶形或五叶形，并且在两个叶片中均观察到了叶片的皱纹，披针形，卵形，浅裂。品种。观察到像多叶突变体这样的突变体可以通过定向选择在M_2代中进行，这些稳定的突变体可以用作重组绿豆基因型的供体。表型和基因型的叶数变异系数值较高，表明有可能通过直接选择具有豆荚/植物和植物高度的叶数来提高种子产量。

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