矮壮素对中薯3号生理特性的影响研究  

Effect of Chlorocholine Chloride,Chlormequat on the Physiological Characteristics of the Potato Variety Zhongshu No.3

作　　者：王惠群[1] 萧浪涛[1] 杨艳丽[1,2] 童建华[1] 康朵兰[1] 

机构地区：[1]湖南农业大学,湖南省植物激素与生长发育重点实验室,湖南长沙410128 [2]云南农业大学植物保护学院,云南昆明650201

出　　处：《云南农业大学学报》2008年第2期200-204,共5页Journal of Yunnan Agricultural University

基　　金：云南省科技攻关项目(2002NG09)资助

摘　　要：对马铃薯品种"中薯3号"的苗期植株喷施不同浓度的矮壮素(CCC,0 g/L,1.5 g/L,2.0 g/L,2.5g/L),研究CCC对植株生理特性的影响;应用32P示踪技术测定叶片中磷的含量。结果表明,CCC对叶片中磷的含量升高有影响,CCC浓度为2.0 g/L能明显促进植株在各生长时期叶片对含磷量的吸收;CCC使中薯3号在出苗后36 d的叶片净光合速率、细胞间CO2浓度和气孔导度均低于对照,而在出苗后的46 d、56 d和66d叶片净光合速率、细胞间CO2浓度、气孔导度和蒸腾速率最高;在中薯3号的生育期为36 d、46 d和56 d时,叶片含磷量与其净光合速率、细胞间CO2浓度、气孔导度和蒸腾速率都有显著的正相关关系。喷施不同浓度的CCC能增加中薯3号的产量,最高增产达10.10%。The effect of Chlorocholine Chloride, Chlormequat （CCC） on the physiological characteristics of the potato variety Zhongshu No. 3 was studied by spraying different concentrations of CCC （0 g/ L, 1.5 g/L, 2.0 g/L, 2.5 g/L） at the seedling stage. Using32p tracer technology, it was found that CCC increased the content of phosphate （P） in leaves and 2. 0 g/L of CCC increased the highest content of P in leaves at every stage. The net photosynthetic rate, stomatic conductance and intercellular CO2 concentration of Zhongshu No. 3 sprayed with CCC were inferior to those of control at the growth period of 36 d. 2. 0 g/L of CCC had the best effect on the net photosynthetic rate, stomatic conduct- ance, intercellular CO2 concentration and transpiration rate of Zhongshu No. 3 at the growth stage of 46 d, 56 d and 66 d. There was a significantly positive correlation between content of P in leaves and the net photosynthetic rate, stomatic conductance, intercellular CO2 concentration and transpiration rate in Zhongshu No. 3. The relative average yield per plant increased by 10. 01% through spraying Zhongshu No. 3 with 2.0 g/L CCC.

关 键 词：中薯3号 矮壮素 生理特性 产量 

分 类 号：S532.01[农业科学—作物学]