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烟草叶片生长的动态分析
引用本文:招启柏,顾世梁,俞惠梅,刘秀丽,王广志,曹显祖.烟草叶片生长的动态分析[J].中国烟草学报,2004,10(2):12-20.
作者姓名:招启柏  顾世梁  俞惠梅  刘秀丽  王广志  曹显祖
作者单位:1. 江苏中烟工业公司,南京,210029
2. 扬州大学农学院,扬州,225009
摘    要:对烟草品种K326叶片的发生和叶面积扩展规律进行了动态研究.结果表明,K326烟草叶片的出叶速度前期慢、后期快,前期(4~8叶)5~6d、中期(9~18叶)2~3d、后期(19~34叶)1~2d出一片叶.叶片的长宽比在1. 45~2.63之间,长宽比在低位叶处较小,随叶位的上升而增大,在高位叶又有所下降,打顶后的高位叶长宽比值下降较小.各叶位叶片长、宽和叶面积均有相似的扩展规律,用Richards方程拟合有很高的拟合度.使用该方程,可以获得一些与烟叶生长、发育和烟叶生产相关的生长参数.平均而言,达到最终叶面积一半的时间约需16.4d,生长速率达最大值约在出叶后14.77d.达到最终叶面积99%的实际生长期约需36.8d.打顶后,叶片的实际生长期更长.各叶位的长、宽和叶面积随叶位的增加而增加,至25叶后,增加的幅度变小,这种变化趋势也可用Richards方程较好的描述.

关 键 词:烟草  叶片  打顶  积温  方程
文章编号:1004-5708(2004)02-0012-09
修稿时间:2003年5月13日

A dynamic analysis of tobacco leaf growth
Zhao Qibai Gu Shiliang Yu Huimei Liu Xiuli Wang Guangzhi Cao Xianzu Jiangsu Tobacco Industrial Corporation,Nanjing Yangzhou University,Yangzhou.A dynamic analysis of tobacco leaf growth[J].Acta Tabacaria Sinica,2004,10(2):12-20.
Authors:Zhao Qibai Gu Shiliang Yu Huimei Liu Xiuli Wang Guangzhi Cao Xianzu Jiangsu Tobacco Industrial Corporation  Nanjing Yangzhou University  Yangzhou
Affiliation:Zhao Qibai1 Gu Shiliang2 Yu Huimei1 Liu Xiuli2 Wang Guangzhi1 Cao Xianzu2 1 Jiangsu Tobacco Industrial Corporation,Nanjing 210029 2 Yangzhou University,Yangzhou 225009
Abstract:Research was made on growth and development of tobacco leaf by intensive observation in leaf growing period with variety K326. Result showed that the growing rate of leaf was slow at early and fast at late stages. 5~6 days were needed to have a new leaf for the early leaves (4~8), only 2~3 days or 1~2 days for middle leaves (5~18) and late leaves (19~34) respectively. The ratio of leaf length to width was between 1.45 to 2 63, lower for earlier and later leaves and higher for middle ones. All leaves follow the similar expansion rule. They were fitted well with Richards equation with high goodness of fit (R 2), so their growth could be described with the equation. On average, 16.4 days was needed to reach the half of the final leaf area. The maximal growth rate of leaf area was about 17.44 days after its appearing. The practical leaf growing period (reaching 99% of the potential leaf area) was about 36.8 days. Tobacco leaf maintained a long period of continuous growth after a fast growing stage, especially for those plants after topping. The leaf increased its area slowly, greatly, and slowly again with the increase of leaf position. This process could be fitted with Richards equation as well.
Keywords:Richards
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