Major, D.J. and Hamman, W.M. and Rood, S.B. (1982) Effects of short-duration chilling temperature exposure on growth and development of sorghum. Field Crops Research, 5. pp. 129-136.
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Abstract
An early maturing sorghum (Sorghum bicolor (L.) Moench cv. Pride P130) was grown in a greenhouse with day/night temperatures of 23/18°C and transferred to a controlled environment chamber with day/nihth temperatures of 13/8°C for 3-, 7-, or 10-day periods starting at seedling emergence and continuing to maturity. Reductions in leaf number and plant height caused by chilling temperatures were only temporary. Chilling temperatures 28 days after emergence caused tiller number to increase from three to as many as eight per plant. While both panicle emergence and anthesis were delayed, the period between panicle emergence and anthesis was shortened after chilling treatment. Exposure to chilling temperatures did not affect kernel growth, number of kernels per panicle, yield per panicle, or anthesis of secondary tillers. Secondary, tertiary, and subsequent tillers had progressively fewer kernels, lower yields per panicle, lighter weight per kernel, and anthesed later than primary tillers. It was concluded that, although chilling temperatures of short duration might increase tiller number or reduce plant height, they would not seriously affect final yield or maturity.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Agriculture Canada Research Station, Leth bridge Alta TIJ 4BI Canada |
| Subjects: | Crop Improvement |
| Divisions: | Sorghum |
| Depositing User: | Library ICRISAT-InfoSAT |
| Date Deposited: | 17 Mar 2012 07:25 |
| Last Modified: | 17 Mar 2012 07:25 |
| Official URL: | http://dx.doi.org/10.1016/0378-4290(82)90013-2 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3929 |
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