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Water deficit during panicle development in pearl millet: yield compensation by tillers

OAR@ICRISAT

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Relation http://oar.icrisat.org/1430/
 
Title Water deficit during panicle development in pearl millet: yield compensation by tillers
 
Creator Mahalakshmi, V
Bidinger, F R
 
Subject Millets
 
Description Water deficit during the panicle development stage reduced the grain yield of the main shoot panicle of pearl millet but this loss was compensated by increased grain yield of the tillers. The potential extent of compensation in grain yield components by tillers was investigated by removing the main shoot at panicle initiation (PI) and flowering stages respectively, for both irrigated and water-stressed plants. Grain yield loss by removal of the main shoot of plants at PI was fully compensated by tiller grain yield in both the irrigated and water-stressed plants. The compensation was, however, only partial when the main shoot was removed at flowering. The compensation for the grain yield loss in the main shoot due to either water stress or removal was through an increase in number of grains on the tillers. This increase was due to an increase in the number of productive tillers in the case of water stress and to both an increase in the number of productive tillers and an increase in the number of grains per panicle in the case of main shoot removal. This compensatory mechanism by tillers plays an important role in overcoming the effects of pre-flowering water stress damage to the main shoot.
 
Publisher Cambridge University Press
 
Date 1986
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/1430/1/JouAgriSci106_113-119_1986.pdf
Mahalakshmi, V and Bidinger, F R (1986) Water deficit during panicle development in pearl millet: yield compensation by tillers. The Journal of Agricultural Science, 106 (1). pp. 113-119.