作物研究2023，Vol.37Issue(6)：582-587,6.
湿润育苗下不同基质处理对烟苗生长发育的影响
Effects of Different Substrates on the Growth and Development of Tobacco Seedlings with Moist Cultivation
摘要
Abstract
In order to explore the effect of seedling growing media based on the cultivation of strong seedlings of flue-cured tobacco,the effects of different substrate treatments on the quality of Yunyan 87 tobacco seedlings under wet seedling grow-ing were studied with commercial seedling growing media as the control,and dry cow doung,yellow soil,peat,expanded perlite as the matrix components.The results showed that there were differences in the composition of components and the main physicochemical properties of each substrate treatment,leading to differences in the growth and development of toba-cco seedlings during the seedling stage.The substrate bulk density of the five treatments was 0.45-0.66 g/cm3,which was significantly higher than the control;The total porosity was 67.7%-76.1%,which was lower than the control;pH value was 6.7-7.0,and the conductivity was 0.78-2.15 mS/cm,both of which are higher than the control.The gas-water ratio of T1 and T2 were higher than that of the control;The stem circumference,plant height,and maximum leaf area of T1,T2,and T3 tobacco seedlings were higher than those of the control;Compared with the control,the dry weight of T1 and T2 tobacco seedlings increased by 10.8%and 9.9%,respectively;The total chlorophyll content was only lower in T4 than the control;The root activity of T1,T2 and T3 increased by 44.3%-48.5%compared to the control,and the nitrate reductase activity of which increased by 29.4%-44.1%compared to the control.The result of principal component analysis and comprehen-sive revealed that the effect of cultivating strong seedlings of the substrates was T2>T1>T3>CK>T4>T5.The substrate made of 15%dry cow dung+35%yellow soil+35%peat+15%expanded perlite as the wet seedling substrate is condu-cive to promoting the growth and development of tobacco seedlings and cultivating strong seedlings.关键词
烤烟/育苗/基质/烟苗素质Key words
flue-cured tobacco/seedling/substrate/tobacco seedling quality分类
农业科技引用本文复制引用
王青,张宇航,易克,高志豪,成志军,李迪秦..湿润育苗下不同基质处理对烟苗生长发育的影响[J].作物研究,2023,37(6):582-587,6.基金项目
株洲市烟草公司项目(2021-01) （2021-01）
湖南中烟工业有限责任公司项目(202143000934098). （202143000934098）
