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Development of a Cajanus cajanifolius-based CMS Hybrid Technology in Pigeonpea

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Relation http://oar.icrisat.org/11145/
https://doi.org/10.1007/s12892-018-0172-0
10.1007/s12892-018-0172-0
 
Title Development of a Cajanus cajanifolius-based CMS Hybrid Technology in Pigeonpea
 
Creator Srivastava, R K
Saxena, K B
Kumar, R V
 
Subject Crop Improvement
Plant Breeding
Crop Yield
Pigeonpea
 
Description Pigeonpea is an important food legume of the semi-arid tropics grown mainly under subsistence agriculture. As a first step to address the five decades-long yield stagnation, a proof-of-concept for a commercially viable CMS-based hybrid technology with high standard heterosis and fertility restoration has been demonstrated. Six generations of backcrossing and selection for male sterility, and agronomic superiority using a Cajanus cajanifolius- (A4 cytoplasm) based CMS donor (ICPA 2039) and a medium-maturity group recurrent parent ICPL 20176 (ICPB 2043) which resulted in a stable male sterile line (ICPA 2043) with near-perfect male sterility and superior agronomic traits. Following backcrossing and selections, the A-line (ICPA 2043) appeared to be morphologically similar in terms of various qualitative and quantitative traits compared to the B-line (ICPB 2043). However, differences between ICPA 2043 and ICPB 2043 were observed for days to maturity, 100-seed weight, pods plant-1, and seed weight plant-1. These differences may not be genetic but physiological. The best heterotic restorer line selected in a cross (ICPH 2671) combination restored a mean of 96.49% male fertility in 36 environments (12 locations, 3 years). Present investigation did not reveal significant G×E interaction for fertility restoration, indicating the possibility of obtaining high and stable grain yields in the pigeonpea growing areas of South and Central India.
 
Publisher Korean Society of Crop Science and Springer
 
Date 2018-12
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11145/1/Srivastava2018_Article_DevelopmentOfACajanusCajanifol.pdf
Srivastava, R K and Saxena, K B and Kumar, R V (2018) Development of a Cajanus cajanifolius-based CMS Hybrid Technology in Pigeonpea. Journal of Crop Science and Biotechnology, 21 (5). pp. 443-449. ISSN 1975-9479