首页|Characterization of Gossypium barbadense germplasm using qualitative descriptors
Characterization of Gossypium barbadense germplasm using qualitative descriptors
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
The experiment was commenced to determine the distinctness, uniformity and stability characteristics of fifty germplasm accessions of Egyptian cotton. The experiment was carried out using augmented Block Design during summer 2021 at the Department ofCotton, TNAU. Five principal components were defined through Principal Component Analysis (PCA), accounting for 97.62 pre cent of the total variation. First principal component (PC 1) was associated with stem pigmentation (0.967) and petal spot (0.236).Second principal component (PC 2) was associated with petal spot (0.934) and boll tip (0.238). The traits leaf hairiness, leaf nectaries, stigma position, boll colour and boll surface had the highest diversity index (3.912). Stem pigmentation (3.391) hadthe lowest diversity index, followed by stem hairiness (3.760) and petal spot (3.846). Based on UPGMA method, the genotypes were divided into five distinct clusters. Cluster III had the most genotypes (29), while Cluster I and II had only one genotype.Genotypes namely GP(B) 185 - NDGB 84, GP(B) 184 - NDGB 80 and GP(B) 46 EC - 136452/A occupied the convex of the hull and had the highest point among the variables.
DUS charactersEgyptian cottonprincipal component analysis
K. THAMIZHI、L. MAHALINGAM、N. PREMALATHA
展开 >
Department of Cotton, Tamil Nadu Agricultural University, Coimbatore-641 003
NSTL
