Some effects of heat waves on grain sorghum at the stage of head emergence

Pasternak D. and Wilson G.L. (1969) Some effects of heat waves on grain sorghum at the stage of head emergence. Australian Journal of Experimental Agriculture, 9 41: 636-638. doi:10.1071/EA9690636


Author Pasternak D.
Wilson G.L.
Title Some effects of heat waves on grain sorghum at the stage of head emergence
Journal name Australian Journal of Experimental Agriculture   Check publisher's open access policy
ISSN 0816-1089
Publication date 1969
Sub-type Article (original research)
DOI 10.1071/EA9690636
Volume 9
Issue 41
Start page 636
End page 638
Total pages 3
Subject 1100 Agricultural and Biological Sciences
Abstract Sorghum plants were exposed at head emergence to simulated heat waves for five days, and subsequent grain production observed. Comparisons were made between relatively dry heat (108°F, 41 per cent RH by day and 90°F, 53 per cent RH by night), more humid hot conditions (107°F, 70 per cent RH-90°F, 70 per cent RH), and ambient (81°F, 64 per cent RH-71°F, 85 per cent RH). Whole inflorescences or portions that had emerged before heat application were little affected, whereas most enclosed flowers were killed. High temperature was responsible, humidity having little effect. Grain yield depended on the resulting number of grains. There was some loss of pollen viability in the dry heat treatments, but not sufficient to affect seed set.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Tue, 28 Jun 2016, 02:20:23 EST by System User