학술논문
催芽種子에 對한 低溫處理期間의 長短이 秋播大麥의 出穗 및 生態的 特性에 미치는 影響과 그의 品種間 差異
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- 영문명
- The Effect of Different Chilling Period for the Sprouted Seed on the Heading and Agronomic Characteristics of Winter Barley and It’s Varietal Differences
- 발행기관
- 한국육종학회
- 저자명
- B.K. Yim(林炳琪) H.S. Lee(李弘䄷 )
- 간행물 정보
- 『한국육종학회지』Vol.6 No.1, 8~19쪽, 전체 12쪽
- 주제분류
- 농수해양 > 기타농수해양
- 파일형태
- 발행일자
- 1974.06.30
4,240원
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국문 초록
영문 초록
33 barley cultivars including the Korean leading cultivars and the standard cultivars those winter habit are already known were treated at low temperature (0~3℃) after sprouting, The chilling periods were 0, 9, 16, 23, 30, 37, 44, 51 days respectively. Seeding date was April 5th 1973. The number of days from seeding to heading, rosette formation, stem elongation, culm length and grain number were observed, and the classification was attempted on the winter growing habit and earliness group.
Heading was retarded by the shortening of chilling period and the more retardation was found in the cultivars which had higher winter growing habit.
The cultivars used in this experiment could be classified into 4 classes (Ⅲ~Ⅶ) in accordance with chilling period for the rosette formation and number of days for retardation in heading.
It was recognized that cultivars tested were able to be headed when those were sown early April after chilling on sprouted seed.
The cultivars were classified into 5 earliness group with 2 day interval according to the number of days from seeding to heading on the 58 day chilling plot and fall sowing plot. Same cultivars were subjected to same earliness group in both plots. The positive correlation were recognized between heading earliness of chilling plot and that of fall sowing plot and it’s coefficients were ranged from 0.5346 to 0.7828.
The culm was shortened as short as 20~50% by spring sowing after chilling treatment and no difference could be recognized by the difference of treatment period.
The number of grain per ear was reduced by the spring sowing after chilling and same tendency was observed for the number of tillers per hill and 1,000 grain weight.
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ABSTRACT
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- 催芽種子에 對한 低溫處理期間의 長短이 秋播大麥의 出穗 및 生態的 特性에 미치는 影響과 그의 品種間 差異
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