EFFECT OF TEMPERATURE ON PHENOLOGY AND GRAIN YIELD OF SORGHUM-BICOLOR
EFFECT OF TEMPERATURE ON PHENOLOGY AND GRAIN YIELD OF SORGHUM-BICOLOR
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DOI：
10.1071/ar9720585
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发表时间：
1972-01-01
影响因子：
--
通讯作者：
DOWNES, RW
中科院分区：
文献类型：
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作者：
DOWNES, RW
在受控高温条件下生长的美国高粱品种的产量低于中等温度条件下的产量。种子萌发和萌发之间的高温（昼/夜33/28°C）导致籽粒产量低。萌发期和穗部发育早期的高温并没有降低小花的产量。在萌发前暴露于高温的植株中，穗发育后期的高温诱导小花败育，甚至在花后的中等温度也与胚胎败育有关。夜间高温对谷物产量的不利影响可能与支持暗呼吸作用的同化物有效性不足有关。
When grown under controlled high temperature conditions United States sorghum cultivars exhibited depressed grain yield in comparison with yield at moderate temperatures. High temperatures (day/night 33/28°C) between germination and initiation resulted in low grain yield. High temperatures at initiation and during the early phases of panicle development did not reduce floret production. In plants exposed to high temperatures before initiation, high temperatures late in the panicle development stage induced floret abortion, and even moderate temperatures after anthesis were associated with embryo abortion. The adverse effect of high night temperatures on grain yield is likely to be associated with inadequate assimilate availability to support dark respiration.