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Water relations, growth, and dry matter accumulation of sorghum under post-rainy season conditions

OAR@ICRISAT

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Relation http://oar.icrisat.org/3827/
https://www.agronomy.org/publications/aj/abstracts/71/5/AJ0710050843
 
Title Water relations, growth, and dry matter accumulation of sorghum under post-rainy season conditions
 
Creator Sivakumar, M V K
Seetharama, N
Singh, Sardar
Bidinger, F R
 
Subject Sorghum
 
Description Field studies were conducted on deep vertisols to assess the effects of water stress on the growth and DM accumulation of sorghum. Leaf water potential and stomatal conductance were measured diurnally on 4 dates during the growing season. Irrigated sorghum exhibited higher stomatal conductance, higher leaf water potentials, higher LAI and greater DM accumulation than non-irrigated sorghum. Higher transpiration rates in irrigated sorghum were explained by increased net radiation measured over the irrigated canopy. Lower leaves in the sorghum canopy showed lower stomatal conductance. Non-irrigated sorghum had fewer tertiary branches/secondary branch, fewer seeds/panicle and smaller seeds. Non-irrigated sorghum used 213 mm water to produce 0.51 kg DM/m2; irrigated sorghum extracted 321 mm water to produce 0.93 kg DM/m2
 
Publisher American Society of Agronomy
 
Date 1979
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/3827/1/AgronomyJournal_71_5_843-847_1979.pdf
Sivakumar, M V K and Seetharama, N and Singh, Sardar and Bidinger, F R (1979) Water relations, growth, and dry matter accumulation of sorghum under post-rainy season conditions. Agronomy Journal , 71 (5). pp. 843-847. ISSN 0002-1962