Vol. 5, Issue 5 (2017)
Principal component analysis of morpho-physiological traits in rice germplasm accessions (Oryza sativa L.) under rainfed condition
Author(s): GC Ojha, AK Sarawgi, Bhawana Sharma and Mangla Parikh
The current investigation was carried out to determine the genetic diversity among 207 rice germplasm accessions under rainfed condition by using principal component analysis. In this study, PC1 had the contribution from the traits viz., canopy temperature which accounted 16.063% to the total variability. Flag leaf width and flag leaf area has contributed 15.425% to the total variability which came under PC2. The remaining variability of 12.024%, 9.896%, 8.732% and 6.727% was consolidated in PC3, PC4, PC5 and PC6 by various traits like grain breadth, days to 50% flowering, grain length and flag leaf length. The cumulative variance of 68.867% of total variation among 17 characters was explained by the first six axes. Thus the results of principal component analysis revealed, wide genetic variability exists in this rice germplasm accessions. The genotypes having low canopy temperature will be considered in selection criterion under rainfed condition. The genotypes i.e., IC299924, IC335860, IC336076, IC369303, IC371899, IC376408, IC376584, IC377168, IC381834, IC447325, IC459645, IC577038, IC579065, IC580716 were found in better yield as well as low canopy temperature under rainfed condition. These genotypes can be utilized as donor in breeding programme for rainfed condition.
Pages: 1875-1878 | 677 Views 25 Downloads
How to cite this article:
GC Ojha, AK Sarawgi, Bhawana Sharma, Mangla Parikh. Principal component analysis of morpho-physiological traits in rice germplasm accessions (Oryza sativa L.) under rainfed condition. Int J Chem Stud 2017;5(5):1875-1878.