Estimation of Heterosis in Root Length of Wheat under Different Saline Environment

被引：4
|
作者：
Tahira, W. [1 ]
Buutta, M. [2 ]
Salam, A. [1 ]
机构：
[1] Univ Agr Faisalabad, Dept Plant Breeding & Genet, Faisalabad 38040, Pakistan
[2] Univ Agr Faisalabad, Ctr Adv Studies Genet & Saline Agr CAGSA, Faisalabad 38040, Pakistan
来源：
CEREAL RESEARCH COMMUNICATIONS | 2011年 / 39卷 / 02期
关键词：
wheat; salinity; heterosis; diallel cross; SALT-TOLERANCE; GROWTH;
D O I：
10.1556/CRC.39.2011.2.15
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
A 6 x 6 diallel cross among three sensitive (18180-II, 18205-I, 18205-I and DN-18) and three tolerant (18194-II, DN-4, and LU-26S) wheat genotypes was analyzed. Thirty-six genotypes were sown in a triplicates completely randomized design in hydroponics culture. Data for root length was recorded in three salinity levels, i.e. control, 10 and 15 dSm(-1). Combining ability effects controller tolerance in the two salinity levels (10 and 15 dSm(-1)). The genotypes 18194-II and LU-26S exhibited highest general combining abilities under10 and 15 dSm(-1). The cross combinations with highest specific combining ability for root length were 18194-II x DN-4, 18180-II x 18205-I and LU26S x DN-18 under salinity levels. In reciprocals the crosses DN-18 x DN-4 and DN-4 x 18205-I appeared to be superior to the others under high salinity levels. DN-4 x LU26S produced significantly longer roots than its better parent and thus showed highest heterobeltiosis in high salinity level.
引用
收藏
页码：306 / 314
页数：9
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