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Modeling the Effect of Environmental Factors on sorghum Growth and Development

OAR@ICRISAT

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Relation http://oar.icrisat.org/4341/
 
Title Modeling the Effect of Environmental Factors on sorghum Growth and Development
 
Creator Huda, A K S
Sivakumar, M V K
Virmani, S M
Seetharama, N
Singh, S
Sekaran, J G
 
Subject Sorghum
 
Description The yrelds ofrarnledsorghumrn the semr-arid regions in general are low and vary from year to year. An understanding of the interactions between the physical environment and the genotype is important to Increase and stabilize production of sorghum. This information, through the systems-simulation approach could be used to model sorghum growth and development. The gran sorghum growth simulation model-SORGF-was used as the basis to evaluate crop weather interactions. A multilocation study was conducted in India over a period of 4 years to evaluate the growth and development of selected sorghum genotypes of varying maturity durations. Preliminary results suggested that several subroutines of the SORGF model needed modrbcatrons to simulate accurately the effect of environmental factors. Algorithms of the SORGF model dealing with light interception, phenology, leaf senescence,
sol1 water, and total dry matter accumulalron and its partitioning to grain have been revised
The improvement resulting from the revisions made rn each of the above subroutrnes are
compared wrlh the freld data and the simulationes sults olthe ongrnalSORGF model The use
of the SORGF model for rrrrgatron scheduling and lrrst-order screenrng of envrronments lor
sorghum producoon are illustrated
 
Date 1984
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4341/1/CP-150.pdf
Huda, A K S and Sivakumar, M V K and Virmani, S M and Seetharama, N and Singh, S and Sekaran, J G (1984) Modeling the Effect of Environmental Factors on sorghum Growth and Development. In: Agrometeorology of SOrghum and Millet in the Semi-Arid Tropics: Proceedings of the International Sysmposium, 15-20 Nov. 1982, ICRISAT Patancheru, India.