西昌学院学报（自然科学版）
西昌學院學報（自然科學版）
서창학원학보（자연과학판）
JOURNAL OF XICHANG COLLEGE(NATURAL SCIENCE EDITION)
2014年
4期
5-7
,共3页
低温胁迫%巨胚稻%种子萌发
低溫脅迫%巨胚稻%種子萌髮
저온협박%거배도%충자맹발
Low temperature%the Japonica Xi-giant embryo%seed germination
本文以粳型西巨胚1号为试验材料，研究了不同低温处理对种子萌发的影响。结果表明，随着低温胁迫温度的降低，巨胚稻种子萌发受抑制的程度增强。当胁迫温度达8℃及以下时，西巨胚1号的发芽率急剧下降，低温处理后幼芽不能很好恢复生长，死苗率高。50%死苗率和胁迫温度的拟合曲线结果表明粳型西巨胚1号种子萌发对低温冷害的最低耐受温度为9.4℃。
本文以粳型西巨胚1號為試驗材料，研究瞭不同低溫處理對種子萌髮的影響。結果錶明，隨著低溫脅迫溫度的降低，巨胚稻種子萌髮受抑製的程度增彊。噹脅迫溫度達8℃及以下時，西巨胚1號的髮芽率急劇下降，低溫處理後幼芽不能很好恢複生長，死苗率高。50%死苗率和脅迫溫度的擬閤麯線結果錶明粳型西巨胚1號種子萌髮對低溫冷害的最低耐受溫度為9.4℃。
본문이갱형서거배1호위시험재료，연구료불동저온처리대충자맹발적영향。결과표명，수착저온협박온도적강저，거배도충자맹발수억제적정도증강。당협박온도체8℃급이하시，서거배1호적발아솔급극하강，저온처리후유아불능흔호회복생장，사묘솔고。50%사묘솔화협박온도적의합곡선결과표명갱형서거배1호충자맹발대저온냉해적최저내수온도위9.4℃。
The effect of different low temperature stress on seed germination was studied with the Japonica Xi-giant embryo-1 rice. The result showed that the restrained degree of seed germination increased with the decrease of temperature in the low temperature stress. when the low temperature is reached 8℃and below, the seed germination rate of Japonica Xi-giant embryo-1 rice was decreased rapidly, and the seedling disease rate was enhanced because it was not restored after low temperature stress treatment. The curves of 50%seedling disease rate and temperature stress indicated that the tolerance temperature of low temperature stress was 9.4℃ to seed germination of Japonica Xi-giant embryo-1 rice.
