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
Pre-harvest sprouting (PHS), which is the precocious germination of the grains in the spike before it is harvest, is the serious problem in the reduction of end-use quality in wheat. In this study, the relationships among PHS tolerance, agronomic and grain characteristics in Korean wheat cultivars were evaluated for two years to improve PHS tolerance in Korean wheat breeding programs. Grain characteristics including 1,000 grain weight and grain size (length, width and thickness), PHS tolerance conducted by the mist spray in the humid chamber (PHS-MS) and germination index (GI), and Agronomic traits including heading date, maturing date, culm length, awn length and the number of grain/spike, were significantly influence by genotype,year and the interaction between year and genotype, except in spike length, the number of spike/m 2and test weight. PHS tolerance and GI were significantly correlated with 1,000-grain weight (r = 0.618, and r = 0.528, respectively) and length, width and thickness of grain, although no significant relationship between agronomic traits and PHS tolerance was found in Korean wheat cultivars. PHS-MS also showed positively correlated with GI value (r = 0.770, P < 0.001). White grain cultivars showed higher PHS-MS and GI values (61.86% and 0.58, respectively) than red grain cultivars (11.89% and 0.18, respectively). White grain cultivars also showed higher values in length, width and thickness of grain than red grain cultivars. Among red grain cultivars, Alchan, Goso, Suan and Sukang showed lower values in both PHS-MS and GI (< 2.63% and < 0.05, respectively)and these cultivars could be used to improve PHS tolerance in Korean wheat breeding programs.
목차
등록된 정보가 없습니다.
참고문헌 (26)
참고문헌 신청
Auld AS / 2003 / Effects of drought and high temperature during maturation on preharvest sprouting of hard white winter wheat / Cereal Res. Commun 31 : 169 ~ 176
Barnard A / 2005 / Genetic variability of preharvest sprouting-the South African situation / Euphytica 143 : 291 ~ 296
Bayer AC / 1987 / Pre-harvest sprouting / Annu. Wheat Newsl 33 : 40 ~
Chang C / 2010 / Validating a novel allele of viviparous-1(Vp-B1f ) associated with high seed dormancy of Chinese wheat landrace, Wanixianbaimaizi / Mol. Breeding 25 : 517 ~
DePauw R / 2009 / RL4137 contributes presharvest sprouting resistance to Canadian wheats / Euphytica 168 : 347 ~ 361
Barnard A / 2005 / Genetic variability of preharvest sprouting-the South African situation / Euphytica 143 : 291 ~ 296
Bayer AC / 1987 / Pre-harvest sprouting / Annu. Wheat Newsl 33 : 40 ~
Chang C / 2010 / Validating a novel allele of viviparous-1(Vp-B1f ) associated with high seed dormancy of Chinese wheat landrace, Wanixianbaimaizi / Mol. Breeding 25 : 517 ~
DePauw R / 2009 / RL4137 contributes presharvest sprouting resistance to Canadian wheats / Euphytica 168 : 347 ~ 361
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