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
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Abstract
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
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Leaf-water potential, Stomatal conductance, Leaf area index, Water use |
| Subjects: | Mandate crops > Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 09 Nov 2011 10:27 |
| Last Modified: | 09 Nov 2011 10:27 |
| URI: | http://oar.icrisat.org/id/eprint/3827 |
| Official URL: | https://www.agronomy.org/publications/aj/abstracts... |
| Projects: | UNSPECIFIED |
| Funders: | ICRISAT receives support from IBRD, IDRC, UNDP, USAID and a variety of other donors, governments, and foundations |
| Acknowledgement: | ICRISAT receives support from IBRD, IDRC, UNDP, USAID and a variety of other donors, governments, and foundations. All responsibility for the information in this publication rests with ICRISAT |
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