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轻霜后的甘蔗品质变化与耐寒性评价
作者: 杨荣仲1  梁 强1  周 会1  桂意云1  贤 武1  黄文晔2  何雪丹2  覃丽藩1  廖诗童1  
单位: ( 1 中国农业科学院甘蔗研究中心/农业部广西甘蔗生物技术与遗传改良重点实验室/广西农业科学院甘蔗研究所/广西甘蔗遗传改良  
关键词: 甘蔗  轻霜冻  耐寒评价  品质性状  
分类号:S556.1
出版年,卷(期):页码:2012 ,43 ( 10 ): 页码:1495-1500
摘要:

【Objective】This research aimed to study the relationship between quality changes, characteristics, and morphological damage of sugarcane under light frost condition in order to provide theoretical references for breeding cold-tolerance sugarcane varieties. 【Method】The cold-intolerant sugarcane variety ROC22, the mainly-cultivated sugorcane variety in China, along with 19 other new sugarcane varieties bred by domestic sugarcane breeding institutions, were tested and observed in frosty areas of Yanshan, Guilin City of Guangxi. 【Result】The results showed that with light frost occurrence, the morphological traits of sugarcane showed only slight damage; however, the quality traits of sugarcane were affected significantly when the sucrose content and theoretical recoverable sugar (TRS) rate decreased 9.09 and 10.31%, respectively, with two decreasing points. Further analysis from the research results indicated that there was no correlation between the morphological trait damages and cane quality. 【Conclusion】Under light frost condition, the best time frame for analyzing the effect of cold tolerance on TRS rate was from the second week to the fourth week based on morphological evaluation.

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