Korean Journal of Agricultural Science (농업과학연구)
- Volume 7 Issue 1
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- Pages.1-5
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- 1980
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- 2466-2402(pISSN)
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- 2466-2410(eISSN)
Effect of The Degree and Duration of Low Temperature on the Degeneration and Sterility of Spikelets in Rice
저온(低溫)의 정도(程度)와 기간(期間)이 수도(水稻)의 영화퇴화(穎花退化)와 불임(不稔)에 미치는 영향(影響)
- Ahn, Su Bong (Dept. of Agronomy, Coll. of Agriculture, Chungnam Natl. Univ.)
- 안수봉 (농과대학 농학과)
- Published : 1980.06.30
Abstract
In order to evaluate cold tolerance and to counter measure the cold damage of newly released rice varieties, the effects of degree and duration of low temperature at the meiotic stage on the sterility and ripening of rice spikelets were investigated and the results were as follows: 1. As the temperature was lowered and the duration of low temperature was extended during the meiotic stage, the heading dates were delayed and the sterility were increased. The main factor for the low yield due to low temperature was due to the increased sterility, and under the below
수도(水稻) 신품종(新品種)들의 내냉성(耐冷性) 판별(判別)과 냉해대책(冷害對策)을 위하여 생식생장기(生殖生長期)에 있어서 저온(低溫)의 정도(程度)와 기간(期間)이 임실(稔實)과 등숙(登熟)에 미치는 영향(影響)을 검토(檢討)하여 다음과 같은 결과(結果)를 얻었다. 1. 수도(水稻) 감수분열기(減數分裂期)에 있어서 저온(低溫)의 정도(程度)가 크고 기간(期間)이 길어 질수록 출수(出穗)가 지연(遲延)되고 불임(不稔)이 증가(增加)하였으며 저온(低溫)에 의(依)한 감수(減收)는 주(主)로 불임증가(不稔增加)에 기인(基因)하였으나
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