지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Hexaploid wheat (Triticum aestivum L.) exceeds about 30% of the world’s cereal production and cultivated over 220 million ha worldwide. Heat stress during the grain filling period gives detrimental effect on crop yields and has emerged as a serious problem throughout the world. Korean wheat cultivars that were released since 1960s were developed for various aims such as winter hardness, earliness, and pest resistance, etc. However, heat stress resistance is an emerging target for wheat breeding nowadays. Selected 11 Korean wheat cultivars (“Baegjoong”, “Dajung”, “Goso”, “Hanbaek”, “Jokyung”, “Joeun”, “Jopum”, “Keumgang”, “Olgeuru”, “Sinmichal”, “Uri”) were exposed to high temperature from DAF (days after flowering) 9~13.
In this study, plant responses to heat stress as measured by reduction ratios of total chlorophyll contents, 100 seed weight, shoot dry weight can be translated into degree of tolerance. Therefore, these parameters can be used in wheat breeding for heat tolerance during grain filling period. The obtained results allow us to classify cultivars for heat stress tolerance. Pedigree information of Korean cultivars was shown that wheat line of either tolerant, moderate tolerant, or susceptible trait is succeeded to their descendent, which enable breeders to develop heat stress tolerant wheat by appropriate parental choice.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
Alkhatib K / 1990 / Photosynthesis and productivity during high-temperature stress of wheat genotypes from major world regions / Crop Sci 30 : 1127 ~ 1132
Chen X / 2000 / Wheat stripe rust epidemics and races of Puccinia striiformis f. sp. tritici in the United States in 2000 / Plant Dis 86 : 39 ~ 46
Dupont FM / 2003 / Molecular and biochemical impacts of environmental factors on wheat grain development and protein synthesis / J. Cereal Sci 38 : 133 ~ 146
Ellen J. / 1987 / Effects of plant density and nitrogen fertilization in winter wheat (Triticum aestivum L.) I. Production pattern and grain yield / Neth. J. Agr. Sci 35 : 15
Fokar M / 1998 / Heat tolerance in spring wheat. I. Estimating cellular thermotolerance and its heritability / Euphytica 104 : 1 ~ 8
Chen X / 2000 / Wheat stripe rust epidemics and races of Puccinia striiformis f. sp. tritici in the United States in 2000 / Plant Dis 86 : 39 ~ 46
Dupont FM / 2003 / Molecular and biochemical impacts of environmental factors on wheat grain development and protein synthesis / J. Cereal Sci 38 : 133 ~ 146
Ellen J. / 1987 / Effects of plant density and nitrogen fertilization in winter wheat (Triticum aestivum L.) I. Production pattern and grain yield / Neth. J. Agr. Sci 35 : 15
Fokar M / 1998 / Heat tolerance in spring wheat. I. Estimating cellular thermotolerance and its heritability / Euphytica 104 : 1 ~ 8
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