Studies on combining ability in high yielding drought tolerant mungbean genotypes under West Bengal condition

IF 0.8 4区 生物学 Q3 AGRONOMY
Legume Research Pub Date : 2018-05-05 DOI:10.18805/LR-3537
M. Şen, D. K. De
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引用次数: 1

Abstract

Combining ability analysis was carried out in an 8x8 half-diallel fashion in mungbean to understand the combining ability, nature of gene action for thirteen yield and its components in 28 hybrids and their 8 parents. These 8 genotypes were already classified into drought tolerant and drought susceptible types from a laboratory study where PEG (6000) (-3) bar was used to impose drought stress against control for studying the seedling characters. The analysis of variance due to combining ability for the thirteen yield attributing traits in F1 population and their parents revealed that variances due to GCA and SCA were highly significant for all the characters indicating that these traits were controlled by both additive and non-additive gene action. Results also showed that cross combinations producing significantly superior SCA effect generally involved one of the parents with good GCA effect and the other had been either medium or poor combiner. Transgressive breeding has been opined to be useful in such cases. After compilation of the results it was found that only two cross combinations viz. SML-286(S) x B-1(T) and PDM-54(T) x K-851(T) were superior performers with respect to 7 and 5 characters including yield. Therefore, progeny of these two crosses may be pursued for obtaining lines with higher yield and tolerance to drought.
西孟加拉邦条件下高产耐旱绿豆基因型配合力研究
采用8 × 8半双列杂交方式对绿豆进行配合力分析,了解28个杂交品种及其8个亲本的13个产量及其组成部分的配合力、基因作用性质。利用PEG(6000)(-3)棒对对照进行干旱胁迫研究,将这8个基因型划分为耐旱型和易旱型。对F1群体及其亲本的13个产量性状的配合力方差分析表明,GCA和SCA对所有性状的配合力方差均极显著,表明这些性状受加性和非加性基因作用的控制。结果还表明,SCA效果显著的杂交组合通常涉及GCA效果较好的亲本中的一方,而另一方则是中等或较差的组合。在这种情况下,越界繁殖被认为是有用的。结果表明,只有SML-286(S) × B-1(T)和PDM-54(T) × K-851(T)两个杂交组合在7个和5个性状(包括产量)上表现优异。因此,这两个杂交组合的后代可以作为获得高产耐旱品系的追求。
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来源期刊
Legume Research
Legume Research AGRONOMY-
CiteScore
1.30
自引率
37.50%
发文量
256
审稿时长
6-12 weeks
期刊介绍: Legume Research An International Journal. The Journal is an official publication of Agricultural Research Communication Centre. It is designed to bring out the original research articles on genetics, breeding, physiology, bacterial avtivity, production, quality, biochemistry and seeds of legumes crops. The objective of the journal is to serve as a forum for scientific community to publish their research findings on legumes ans to provide basis for new research. Journal is being scanned in the important indexing and abstracting services.
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