烤烟新品系LY1306烘烤前后叶片变化和失水率研究  

Study on Leaf Changes and Water Loss Rate of New Flue-Cured Tobacco Line LY1306 before and after Baking

作　　者：张雪 侯咏[2] 宋正熊[3] 李丽华[3] 李雪君[2] 孙计平[2] ZHANG Xue;HOU Yong;SONG Zhengxiong;LI Lihua;LI Xuejun;SUN Jiping(Luoning Branch of Luoyang Tobacco Company,Luoyang 471700,China;Tobacco Research Institute of Henan Academy of Agricultural Sciences,Xuchang 461000,China;Luoyang Branch of Henan Tobacco Company,Luoyang 471000,China)

机构地区：[1]洛阳市烟草公司洛宁县分公司,河南洛宁471700 [2]河南省农业科学院烟草研究所,河南许昌461000 [3]河南省烟草公司洛阳市公司,河南洛阳471000

出　　处：《种业导刊》2023年第1期15-18,共4页Journal of Seed Industry Guide

基　　金：河南省烟草公司洛阳市公司科技项目(2020410300270077)。

摘　　要：为研究烤烟新品系LY1306烘烤前后叶片变化情况,以秦烟96为对照,采用智能烤箱,分3次取下、中、上各部位烟叶,挂牌标记,烘烤前后分别测量叶长、叶宽和单叶质量,计算叶片失水率。结果表明,烘烤后,LY1306上、中、下部叶长分别减少10.93%、12.60%、11.51%,叶宽分别减少20.58%、24.56%、21.34%,叶长和叶宽失水率均小于秦烟96;2个品种(系)叶片干鲜比均表现为上部>中部>下部,LY1306上、中、下部叶片干鲜比均大于秦烟96。In order to study the changes of leaves of a new flue-cured tobacco strain LY1306 before and after baking,Qinyan 96 was used as a control,and leaves were taken from the lower,middle and upper positions of tobacco by three times marked.The length,width and single leaf mass of the leaves were measured before and after baking with an intelligent oven,and the leaf water loss rate was calculated.The results showed that after baking,the leaf length at upper,middle and lower positions of LY1306decreased by 10.93%,12.60%,11.51%,and the leaf width decreased by 20.58%,24.56%,21.34%,respectively.The water loss rate of leaf length and width was lower than Qinyan96.The dry to fresh ratio of the two varieties(lines)was upper position>middle position>lower position,and the dry to fresh ratio of the upper,middle and lower positions of LY1306 was higher than Qinyan 96.

关 键 词：烤烟 LY1306 烘烤 叶长 叶宽 单叶质量 失水率 

分 类 号：S572[农业科学—烟草工业] TS412[农业科学—作物学]