Vol. 7, Special Issue 6 (2019)
Genetic diversity analysis of Mucuna pruriens (L.) germplasm on the basis of qualitative and reproductive traits
Author(s): Isha Thakur and Jai Kumar
Abstract: Plants genetic diversity is the key component of agricultural system & genetic improvement of crops can be accelerated when broad genetic diversity is available. There is a need to undertake detailed characterization of Mucuna pruriens genetic resources in India to reinforce its crop improvement program. Therefore, to evaluate the diversity among germplasm of Mucuna pruriens on the basis of qualitative and reproductive traits became an essential researchable area. The research was held at AICRP research field of Birsa Agricultural University, Ranchi, Jharkhand. Maximum contribution towards genetic diversity in Mucuna pruriens germplasm was observed by L-dopa content (40.22%), followed by pod yield/plant (11.59%), seed length (11.23%) and number of flowers/inflorescence (9.06%). Minimum contribution was shown by weight of 10 dried pods (0.36%) followed by 100 seed weight and seed yield/plant (0.72%), pod length (1.09%) and number of seeds/pod and pod width both (1.45%). The clustering pattern of twenty four germplasm of Mucuna pruriens showed that cluster I comprise of 22 germplasm and cluster II comprises only 2 germplasm. Germplasm viz. IIHR MP1, IIHR MP2, IIHR MP4, IIHR MP5, IIHR MP6, IIHR MP7, IIHR MP8, DMAPR MP1, DMAPR MP3, DMAPR MP4, DMAPR MP5, DMAPR MP6, DMAPR MP7, DMAPR MP8, Ranchi MP1, Ranchi MP2, Ranchi MP3, Ranchi MP4, Ranchi MP5, Ranchi MP6, Ranchi MP7, Ranchi MP8 were grouped into cluster I and IIHR MP3, DMAPR MP2 were grouped in Cluster II by multivariate analysis of genetic divergence of Mahalonobis “D2†statistics.Maximum intra-cluster divergence was recorded in cluster II (50.53) followed by cluster I (34.96). However, inter-cluster divergence was recorded very high between clusters I and cluster II (123.52). In mean performance of clusters for plant length, cluster I had the higher mean value (8.59m) than cluster II (8.38m) with reverse relation with L-Dopa content; thereby suggested that smaller plant length yield more L-dopa content. The principal component analysis of Mucuna pruriens germplasm indicated that the germplasm such as IIHR MP3, Ranchi MP6, DMAPR MP2, Ranchi MP2, DMAPR MP4 and DMAPR MP1 created maximum genetic diversity among studied germplasm.
Pages: 177-181 | 470 Views 62 Downloads
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How to cite this article:
Isha Thakur and Jai Kumar. Genetic diversity analysis of Mucuna pruriens (L.) germplasm on the basis of qualitative and reproductive traits. International Journal of Chemical Studies. 2019; 7(6): 177-181.
