Effect and interaction of temperature and photoperiod on growth partitioning in three groundnut (Arachis hypogaea L.) genotypes

Nigam, S. N., Nageswara Rao, R. C., Wynne, J. C., Williams, J. H., Fitzner, M. and Nagabhushanam, G. V. S. (1994) Effect and interaction of temperature and photoperiod on growth partitioning in three groundnut (Arachis hypogaea L.) genotypes. Annals of Applied Biology, 125 3: 541-552. doi:10.1111/j.1744-7348.1994.tb04991.x


Author Nigam, S. N.
Nageswara Rao, R. C.
Wynne, J. C.
Williams, J. H.
Fitzner, M.
Nagabhushanam, G. V. S.
Title Effect and interaction of temperature and photoperiod on growth partitioning in three groundnut (Arachis hypogaea L.) genotypes
Formatted title
Effect and interaction of temperature and photoperiod on growth partitioning in three groundnut (Arachis hypogaea L.) genotypes
Journal name Annals of Applied Biology   Check publisher's open access policy
ISSN 1744-7348
Publication date 1994-12-01
Sub-type Article (original research)
DOI 10.1111/j.1744-7348.1994.tb04991.x
Volume 125
Issue 3
Start page 541
End page 552
Total pages 12
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell
Language eng
Formatted abstract
Effect of temperature and photoperiod and their interaction on plant growth and partitioning of dry matter to pods was examined in three selected groundnut genotypes viz., TMV 2, NC Ac 17090 and VA 81B. The genotypes were grown in six walk-in growth chambers which were programmed to simulate three temperature regimes (22/18°C, 26/22°C and 30/26°C day/night) each under long (12 h) and short (9 h) photoperiods. The plant growth rates and partitioning of dry matter to pods were estimated on a thermal time basis.

Plant growth rate (PLGR) was significantly influenced by temperature, photoperiod and genotype, whereas pod growth rate (PDGR) was influenced primarily by temperature and genotype. The interaction of genotype with photoperiod and with temperature was significant for both PLGR and PDGR. For example, at the 22/18°C temperature regime, VA 81B had a high PDGR, while NC Ac 17090 did not even initiate pod growth. The partitioning of dry matter to pods (Pf) was also significantly influenced by photoperiod, temperature and genotype, and significant interactions were found. Photoperiod did not significantly affect Pf under the low temperature regime, but at higher temperatures, partitioning to pods was significantly greater under short days. Pf of VA 81B was relatively insensitive to photoperiod compared with the other two genotypes. The study provided evidence of genotypic variability for photoperiod × temperature interactions which could influence adaptation of groundnut genotypes to new environments.
Keyword Groundnut
Plant growth rate
Pod growth rate
Partitioning
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Thu, 26 Jun 2014, 04:01:32 EST by Dr Rao Rachaputi on behalf of Centre for Plant Science