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Performance of different maturity groups of maize (Zea mays) hybrids under temporary waterlogging condition in a Mollisol

Indian Agricultural Research Journals

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Title Performance of different maturity groups of maize (Zea mays) hybrids under temporary waterlogging condition in a Mollisol
 
Creator SINGH, VEER
SRIVASTAVA, AJAYA
SINGH, R K
BHATNAGAR, AMIT
 
Subject Hybrid, Maize, Waterlogging, Yield
 
Description Maize (Zea mays L.) genotypes of different maturity groups, i e extra early (EEM), early (EM), medium (MM) and late (LM) were evaluated under managed temporary waterlogging stress condition during the kharif season of 2010 and 2011. Data revealed that grain yield, yield attributes and physiological parameters remarkably varied with waterlogging stress among different maturity groups. The tolerance against waterlogging stress of EM and LM groups for plant stand resulted in higher average grain yield over other maturity groups. The mean grain yield of hybrids of different maturity groups differed significantly under normal and waterlogged conditions. Late maturity hybrid PMH-3 was to be the most tolerant against excess soil moisture stress (31.8 and 34.9% yield reduction) and medium maturity HM-9 was highly susceptible (55.2 and 64.6% yield reduction) during both years. Under temporary waterlogging condition, leaf diffusive resistance (LDR) and photosynthetic active radiation (PAR) showed positive correlation with grain yield while transpiration rate (TR) had negative correlation. Leaf temperature showed positive correlation (r = 0.152 and 0.323) with PAR but negative with TR (r = –0.447 and –0.122). The findings indicated that late maturity maize hybrids followed by early maturity maize hybrids can be grown under excess soil moisture stress condition.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-05-31
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/30359
 
Source The Indian Journal of Agricultural Sciences; Vol 83, No 6 (2013)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/30359/13659
 
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