Assessment of genotypic variation in soybean for water use efficiency (WUE) using Carbon Isotope Discrimination (CID) technique

被引：0
|
作者：
Kumar, Mithlesh [1 ]
Lal, S. K. [1 ]
Sapra, R. L. [1 ]
Prabhu, K. V. [1 ]
Talukdar, Akshay [1 ]
Singh, Madanpal [2 ]
Singh, K. P. [1 ]
Nagaich, Deepti [1 ]
Bhat, K. V. [3 ]
机构：
[1] Indian Agr Res Inst, Div Genet, New Delhi 110012, India
[2] IARI, Div Plant Physiol, New Delhi 110012, India
[3] Natl Bur Plant Genet Resources, New Delhi 110012, India
来源：
INDIAN JOURNAL OF GENETICS AND PLANT BREEDING | 2012年 / 72卷 / 02期
关键词：
Glycine max (L.) Merrill; water use efficiency; CID; diversity analysis; TOLERANCE;
D O I：
暂无
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Genotypic variations were analyzed in a set of 91 diverse soybean accessions for 10 morphological traits and water use efficiency (WUE) using Carbon Isotope Discrimination (CID) technique. The Euclidean distance was used as a measure of dissimilarity among the accessions and Ward's method was applied to classify the genotypes and draw the dendrogram. Moderate level of variability for CID (19.95 to 22.91%) was observed among the genotypes. A significant negative correlation (-0.241) between water use efficiency (WUE) and days to maturity was observed. The genotypes in two clusters (Cluster I and V) differed significantly for most of the traits including CID (20.76 Vs 22.43%), days to 50% flowering (50.75 Vs 39.43), days to maturity (117.25 Vs 107.67), plant height (94.70 Vs 63.50 cm), and yield per plant (8.05 Vs 11.03 g). Such genotypes hold promise for developing high yielding and drought tolerant (low CID) genotypes through hybridization.
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页码：241 / 247
页数：7
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