Tuber Cowpea [(Vigna vexillata (L.) A. Rich.] collection conserved in Indian National Genebank was grown for developing key morphological descriptors and descriptor states for its characterization and preliminary evaluation. During characterization process, enormous variability was observed in agro-morphological descriptors, which include both qualitative and quantitative traits. Important morphological traits such as leaf shape and size, flowering behaviour, seed shape, size and colour, tuber shape and tuber weight showed sufficient variability in the germplasm available in the Indian national genebank. Root tuber is one of the essential and economic parts of this legume. The agro-morphological descriptors and descriptor states have been devised considering the importance of different plant parts in this multipurpose legume. Based on critical analysis of existing variability in the germplasm, a set of 56 (37 qualitative and 19 quantitative) key morphological descriptors have been proposed for characterization and preliminary evaluation of tuber cowpea germplasm.

块茎豇豆 [( Vigna vexillata(L.) A. Rich.] 保存在印度国家基因库中的收集物用于开发关键形态描述符和描述符状态，用于其表征和初步评估。在表征过程中，在农业形态描述符中观察到巨大的变异性，其中包括定性和数量性状。重要的形态特征，如叶片形状和大小、开花行为、种子形状、大小和颜色、块茎形状和块茎重量，在印度国家基因库中可用的种质中显示出足够的可变性。块根是这种豆科植物的重要和经济部分之一。考虑到这种多用途豆科植物中不同植物部分的重要性，设计了农业形态描述符和描述符状态。