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不同比例红蓝光对烟苗生长及碳氮代谢的影响
引用本文:肖春生,陈颐,钟越峰,杨虹琦,何命军,李帆,裴晓东.不同比例红蓝光对烟苗生长及碳氮代谢的影响[J].中国农学通报,2013,29(22):160-166.
作者姓名:肖春生  陈颐  钟越峰  杨虹琦  何命军  李帆  裴晓东
作者单位:1. 中国烟草中南农业试验站2. 湖南农业大学3. 湖南省烟草公司长沙市公司4. 河南中烟工业有限责任公司驻马店卷烟厂
基金项目:提高湖南工厂化育苗质量及效益新技术研究
摘    要:为探索湖南冬季烤烟漂浮育苗补光技术,研究不同比例红蓝光对烟苗根系和叶片生长及主要碳氮代谢产物及酶活性的影响。试验分别采用蓝光与红光1:3、1:1、3:1比例组合的 LED灯,并且与日光灯组合成不同照光强度光源对烟苗进行光照处理。研究结果表明,光质和照光强度对烟苗的出叶时间影响不大;照光强度达到7200 lx以上且红光︰蓝光比为3:1时,烟苗生长最好。红光︰蓝光为3:1有利于叶片叶绿素的合成及生长,而红光︰蓝光为1:3可促进根系生长和根系活力提高。组合光源光照下蓝光强度占总照光强度的5%~15%时,对烟苗的茎的作用尤为明显。随着照光强度增加,组合光源中红光︰蓝光为3:1处理的烟苗叶片可溶性总糖含量和转化酶活性显著提高;组合光源中红光︰蓝光为1:3处理烟苗叶片的蛋白质含量和硝酸还原酶活性显著提高。光质及光照强度对烟苗叶绿素合成、碳氮代谢具有十分灵敏的调节作用。合理光照可促进烤烟幼苗根系与叶片的生长。

收稿时间:2012/12/19 0:00:00
修稿时间:1/9/2013 12:00:00 AM

The Effect on Different Proportion of Red Blue Light to Growth and Carbon and Nitrogen Metabolism of the Tobacco Seedling
Abstract:In order to explore light supplement technology by floating seeding of flue-cured tobacco in winter in Hunan, it was studied for effect on different proportion of red blue to growth of root and leaf and carbon and nitrogen metabolism and enzyme activity of the tobacco seeding.Tests are separately carried out with the light emitting diodes in proportion of blue:red 1:3 ,blue:red 1:1 and blue:red 3:1,and they are combined into different light intensity of light source of tobacco seeding by fluorescent light.The results showed that light quality and light intensity on the tobacco leaf time had little effect,and the growth of tobacco seedings are best when light intensity reaches above 7200 Lux and the proportion of red:blue 3:1.The proportion of red:blue 3:1 can promote chlorophyll synthesis and growth of tobacco seeding,but the proportion of red:blue 1:3 can affect the growth of root and increase root activity. Blue light intensity of the total light intensity between 5% and 15% in the combined light significantly promoted the growth of the stem of tobacco seeding.With the increasing of light intensity, the processing leaf of tobacco seeding of the proportion of red:blue 3:1 in combination source can significantly increase total soluble sugar content and enzyme activity,and the processing leaf of tobacco seeding of the proportion red:blue 1:3 in combination source can significantly increase protein content and nitrate reductase activity.Light quality and light intensity on chlorothyll synthesis and carbon and nitrogen metabolism of tobacco seeding highly has sensitive regulation.Reasonable compensation can promote the growth of root and leaf of flue-cured tobacco seeding.
Keywords:light quality
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