Vol. 10 No. 2
Genetic diversity of wheat genotypes based on principal component analysis in Gangetic alluvial soil of West Bengal
Author(s): Bhanupriya, B. Das, N.H. Satyanarayana, S. Mukherjee and K. K. Sarkar
Abstract: The present investigation was planned to assess genetic diversity for yield, yield contributing traits and quality traits in forty nine germplasm of bread wheat along with 4 checks and two triticale variety collected from DWR, Karnal were evaluated in randomized block design with two replication in Nadia district of West Bengal during rabi season in two consecutive years 2010- 2011 and 2011-2012. Principal component analysis (PCA) indicated that five components (PC1 to PC5) accounted for about 75 % of the total variation among traits in bread wheat cultivars. Out of total principal components retained PC1, PC2 and PC3 with values of 25.9%, 17.1% and 13.3% respectively contributed more to the total variation. The first principal component had high positive loading for 9 characters out of 16 viz. weight of grains spike-1, number of grains spike-1, number of spikelets spike-1, spike length, plant height, days to heading, days to flowering, grain protein content and yield plant-1 which contributed more to the diversity. The result of present study could be exploited in planning and execution of future breeding programme in wheat....
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