KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)
- Volume 33 Issue 4
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- Pages.343-349
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- 1988
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- 0252-9777(pISSN)
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- 2287-8432(eISSN)
Varietal Differences in Growth and Development Affected by Temperature in Barley
대맥품종의 오도에 따른 생육반응
Abstract
In order to get informations for breeding early barley cultivars, the thermosensitivity and low temperature growth ability about the breeding materials vernalized were tested at the high '||'&'||'amp; low temperature and field conditions. The temperature coefficient (Q10), ratio and thermosensitivity for plant height were various among cultivars versus temperature treatments. The early cultivars had greater Q10 values and insensitive responses to temperature changes. The Q10 and thermosensitivity for the time of flag leaf unfolding were various among cultivars, but the coefficient of variation in the thermosensitivity was greater, so the character would be more useful for investigating the varietal differences. The Q10 and thermosensitivity for plant height were not significantly correlated with Q10 and thermosensitivity for the time of flag leaf unfolding. The periods from heading to flowering were 2 to 4 days at the high temperature plot, but 1 to 11 days at the low temperature plot, showing much greater variations. In general the cultivars with greater difference of heading time between the high and low temperature plots were Suwon 218, SB 76588, Oweolbori, and Jogangbori, showing the sensitive thermophase and early heading.
보리 극조숙 품종을 육성하기 위하여 육종재료들에 대한 감온성 및 저온생육성을 검정하였다. 국내외 품종 및 계통을 공시하여 파종을 소거한 후 온실의 고온, 저온조건 및 포장에서 시험을 실시한 결과는 다음과 같다. 1. 온도처리에 따른 초장의 온도계수(Q
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