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Sugar Crops of China
2011,2011
(2)
19-21
不同磷水平对伸长期甘蔗栽培原种干物质积累的影响
作 者：
樊仙;崔雄维;刀静梅;刘少春;应雄美;陆鑫;张跃彬;郭家文
单 位：
云南省农业科学院甘蔗研究所/云南省甘蔗遗传改良重点实验室
关键词：
甘蔗栽培原种;伸长期;干物质;根冠比
摘 要：
采用盆栽土培试验,以10个不同基因型甘蔗栽培原种为供试材料,研究低磷和高磷两个处理对伸长期甘蔗株高、生物量和根冠比的影响。结果表明:在不同品种间,植株的株高、生物量干物质累积和根冠比均达到显著水平,品种AO0005的株高和地上部分生物量干重均显著高于其他品种,而高磷处理下地下部分生物量干重低于低磷胁迫处理。对伸长期甘蔗根冠比在低磷胁迫下对磷素的反应分析,品种CO0017和AO0108对磷素反应最敏感。
译 名：
Effect of Different Phosphorus Level on Sugarcane Dry Matter Accumulation during Elongating Period
作 者：
FAN Xian,CUI Xiong-wei,DAO Jing-mei,LIU Shao-chun,YING Xiong-mei,LU Xin, ZHANG Yue-bin,GUO Jia-wen(Sugarcane Research Institute,Yunnan Academy of Agricultural Sciences,Kaiyuan 661600,China; /Yunnan Key Laboratory of Sugarcane Genetics Improvement,Kaiyuan 661600,China)
关键词：
sugarcane cultivated original species;elongating period;dry matter;root/shoot ratio
摘 要：
Ten sugarcane cultivated original species were conducted to determine the effect of plant height,biomass of dry matter accumulating and root/shoot ratio under two levels of P2O5 0,0.75 g/kg in greenhouse.The pot results showed that the plant height,biomass of dry matter accumulating and root/shoot ratio were significant difference between different varieties.The plant height and aboveground dry matter accumulating of AO0005 were significantly higher than that of experimental varieties.However,the P2O5 0.75 g/kg level of root dry matter accumulating was lower than that of the level of P2O5 0 g/kg.Both CO0017 and AO0108 were the most sensitive genotype on the level of P2O5 0 g/kg.
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