한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)
- 제27권2호
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- Pages.116-122
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- 1982
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
대소맥에 있어서 소수 및 소화의 분화, 발육정도가 임성 및 립중에 미치는 영향
Relation of the Fertility and Grain Weight of Wheat and Barley to their Spike Differentiation and Development
초록
1. 소맥의 1소수당 립수는 수축의 기부로부터 제6~8단에 착생된 소수에서 가장 많이 임실되었으며, 수축의 양단에 가까워짐에 따라 감소하였다. 2. 소맥 농림6001의 수축 최하부의 소수에 임실된 립중은 25~27mg, 최상부는 26~28mg으로 가볍고, 수축의 기부로부터 제5,7,9단의 소수에 착생된 제2소화의 립중은 45~46mg, 제 1,3번째 소화의 립중은 36~43mg, 제4소화는 26~29mg으로, 제2소화에 착생된 립이 가장 무겁고 다음은 제1소화 > 제3소화 > 제4소화의 순으로 가벼웠다. 3. 파종밀도가 200립/
In three diverse wheat and one barley cultivars were used to examine the relation of the spikelet and floret differentiation to fertility and an winter wheat Norin 61 was used to examine the spikelet size gradients in the mature ear in relation to their grain development. The greatest number of grains and florets per spikelet, and the heaviest grains occurred in the low-mid part of the ear. Within the spikelets, the 2nd grain from the base was heavier than the I st or the 3rd one. In this region, the fertility of the 1 st floret was 97%, the 2nd 93%, the 3rd 88%, and 4th floret was 15%. The fertility of the wheat and barley was closely related to spikelet and floret differentiation. Barley spikelets was fertile as their differentiation stage was X that is 25 days before heading. Wheat florets were fertile as their differentiation stage was X that is 15-20 days before heading. But, they were sterile or reduced in fertility if they were not reached to the stage X.
키워드