【作者】 金珠群； 陈仲华； 黄一青； 曹光第； 许林英；

【Author】 JIN Zhu-qun~1 ,CHEN Zhong-hua~2 ,HUANG Yi-qing~1,CAO Guang-di~1,XU Lin-ying~1 (1.Cixi Agricultural Sciences Research Institute, Cixi, Zhejiang 315300,China;2.Department of Agronomy,Huajiachi Campus,Zhejiang University, Hangzhou 310029,China)

【机构】 浙江省慈溪市农业科学研究所； 浙江大学华家池校区农学系；

【摘要】 慈抗杂3号与两亲本和泗棉3号、中棉所29的若干生育与生理特性的杂种优势的研究结果表明,慈抗杂3号单株现蕾数比两亲本平均高14.75%,比泗棉3号(CK1)和中棉所29(CK2)分别高34.01%和15.04%;结铃高峰期日增铃数比父、母本分别高18.03%和16.60%,比CK1高28.57%,与CK2无显著差异。现蕾期叶绿素含量慈抗杂3号略高于亲本及CK1,比CK2显著低10.14%;初花期、盛花期和始絮期均高于亲本和对照。盛花期开始慈抗杂3号保持较高水平的SOD与POD活性,使其清除O22-与H2O2的活性氧能力明显提高;与此同时MDA含量显著低于亲本和对照。从而保证了生育中后期旺盛的营养生长和生殖生长。更多还原

【Abstract】 The characterization of growth, yield formation, and some physiological traits was compared among hybrid Bt-cotton Cikangza 3, its parents, hybrid CCRI 29,conventional cultivar Simian 3. The results showed that square number per plant of Cikangza 3 was 14.75%, （34.01%,） and 15.04% significantly higher than that of the mean of its parent and Simian 3 （CK₁） and CCRI 29 （CK₂）. The daily increases in boll number per plant of Cikangza 3, during the peak of boll setting period, was 18.03%, 16.60%, and （28.57%） higher than that of its male and female parent, and Simian 3, but no significant difference with CCRI 29. In addition, chlorophyll content of functional leaves in Cikangza 3 was significantly higher than that of its parents, CK₁ and CK₂ during the beginning/full flowering and early boll-opening stages. Moreover, relatively higher SOD and POD activities of functional leaves during full flowering and boll-opening stages, while lower in MDA content, was observed in Cikangza 3, compared with its parent,CK₁,and CK₂, which was beneficial to increase the capability in eliminating O^2-₂ and H₂O₂, and then to improve the vegetative and reproductive growth and the accumulation of assimilating for boll setting and fiber development of Cikangza 3.更多还原