An iterative regression approach for prediction of sorghum (sorghum bicolor) phenology in the semi-arid tropics

Reddy, S J and Maiti, R K and Seetharama, N (1984) An iterative regression approach for prediction of sorghum (sorghum bicolor) phenology in the semi-arid tropics. Agricultural and Forest Meteorology, 32 (3-4). pp. 323-338. ISSN 0168-1923

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Abstract

Equations are derived to predict the duration of three growth stages of sorghum under adequate moisture and nutrient availability, on the basis of temperature and relative humidity, following an iterative regression approach. The predictions are very good. The response of temperature on phenophase duration was curvilinear. The common base temperature of 10°C and the point of inflection temperature of 19.6°C are shared by all the 4 genotypes studied, but the degree of response in development by each of them varied considerably. The response for each growth stage was different. This study also presents a simple iterative regression approach to solve non-linear functions. This procedure is very valuable where facilities such as sophisticated computers or programmable calculators are lacking.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Subjects:	Mandate crops > Sorghum
Depositing User:	Mr Charan Sai Ch
Date Deposited:	13 Nov 2011 11:44
Last Modified:	13 Nov 2011 11:44
URI:	http://oar.icrisat.org/id/eprint/3373
Official URL:	http://dx.doi.org/10.1016/0168-1923(84)90057-1
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

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