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| 剪叶面积对烤烟漂浮育苗幼苗生长及生理特性的影响 | |
| 引用本文： | 王怀珠,易建华,杨焕文,郭红英,胡玉录. 剪叶面积对烤烟漂浮育苗幼苗生长及生理特性的影响[J]. 河南农业科学, 2006, 0(7): 44-46 |
| 作者姓名： | 王怀珠 易建华 杨焕文 郭红英 胡玉录 |
| 作者单位： | 1. 贵州省烟草科学研究所,贵州,贵阳,550003 2. 云南农业大学烟草学院,云南,昆明,650201 3. 贵州省兴义烟草公司,贵州,兴义,562400 |
| 摘 要： | 以烤烟品种K326为材料,研究了不同剪叶面积对烤烟漂浮育苗幼苗生长及生理特性的影响。结果表明,分别于第5,6,7,8片真叶出现时剪叶1次,每次剪叶面积为1/3~1/2,烟苗成苗时茎秆粗壮,茎、根较重,根/冠较大,根系发达,外观上达到了壮苗标准;同时,叶片硝酸还原酶和转化酶活性、烟苗根系活力及活跃吸收面积等较高(大),而SOD活性、抗坏血酸含量较高,说明烟苗抗逆性较强;脯氨酸含量和电解质渗透率较低,说明烟苗受逆境胁迫较轻。 |
| 关 键 词： | 烤烟 漂浮育苗 剪叶面积 生长 生理特性 |
| 文章编号： | 1004-3268(2006)07-0044-03 |
| 收稿时间： | 2005-12-22 |
| 修稿时间： | 2005-12-22 |
Effects of Clipping Proportion on Growth and Physiological Characteristics of Flue-cured Tobacco Seedlings in Floating System |
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| WANG Huai-zhu,YI Jian-hua,YANG Huan-wen,GUO Hong-ying,HU Yu-lu. Effects of Clipping Proportion on Growth and Physiological Characteristics of Flue-cured Tobacco Seedlings in Floating System[J]. Journal of Henan Agricultural Sciences, 2006, 0(7): 44-46 | |
| Authors: | WANG Huai-zhu YI Jian-hua YANG Huan-wen GUO Hong-ying HU Yu-lu |
| Affiliation: | 1. Guizhou Tobacco Science Research Institute, Guiyang 550003, China; 2. College of Tobacco Science of Yunnan Agricultural University, Kunming 650201, China; 3. Xingyi Tobacco Company of Guizhou Province, Xingyi 562400, China |
| Abstract: | The effects of clipping off the 1/3-1/2 total leaf area at the emergence of 5,6,7 and 8 leaf,respectively,on the growth and physiological characteristics of flue-cured tobacco seedlings in floating system were studied by using the cv.K326 as experimental material.The results indicated that clipped seedlings showed stout stalks,heavier stem and root,greater root/shoot ratio and well-developed roots.Furthermore,clipping clearly improved the root vigor and the activities of the NR,SOD and INV,increased the active assimilation surface and the content of ascorbic acids,decreased the praline content and electrolyte leakage,indicating the seedlings had stronger resistance to stress. |
| Keywords: | Flue-cured tobacco Floating system Clipping proportion Growth Physiological characteristic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |