不同种植模式对烤烟根系和叶片衰老特性的影响  

Effects of different planting patterns on the senescence characteristics of flue-cured tobacco roots and leaves

作　　者：杨铁钊[1] 杨志晓[2] 柯油松 吴文斌 张小全[1] 邱妙文 

机构地区：[1]河南农业大学烟草学院,郑州450002 [2]贵州省烟草科学研究所,贵阳550003 [3]广东省烟草南雄市有限公司,广东南雄512400 [4]广东省烟草南雄科学研究所,广东南雄512400

出　　处：《应用生态学报》2009年第12期2977-2982,共6页Chinese Journal of Applied Ecology

基　　金：国家烟草专卖局项目(110200601020);部分替代进口烟叶生产示范广东南雄试点项目(200403)资助

摘　　要：以烤烟品种K326为试材,采用大田试验研究了广东南雄地区不同种植模式(单行种植+前期垄体覆盖地膜、单行种植+前期垄体覆盖地膜+后期垄体覆盖稻草、双行凹垄种植+前期垄体覆盖地膜和双行凹垄种植+前期垄体覆盖地膜+后期垄体覆盖稻草)对烤烟根系和叶片衰老特性,以及烤后烟叶经济性状的影响.结果表明:与其他种植模式相比,双行凹垄种植+前期垄体覆盖地膜+后期垄体覆盖稻草处理显著促进了各时期烤烟根系生长,根系活力提高;叶片叶绿素含量和保护酶(SOD、POD)活性均较高,而MDA含量较低,烤后烟叶的产量、产值、均价和上等烟比例等经济性状均显著高于其他处理.双行凹垄种植+前期垄体覆盖地膜+后期垄体覆盖稻草处理可以改善烤烟根系和叶片衰老特性,提高烤后烟叶经济性状,是广东南雄地区优质烟叶生产的有效种植模式.With flue-cured tobacco （Nicotiana tabacum） cultivar K326 as test material,a field experiment was conducted at Nanxiong area of Guangdong Province in 2008 to study the effects of four planting patterns,i.e.,single-row ridge ＋ film mulching at early stage,single-row ridge ＋ film mulching at early and late stages,double-row concave ridge ＋ film mulching at early stage,and double-row concave ridge ＋ film mulching at early and late stages,on the senescence characteristics of its roots and leaves,and the economic traits of its leaves. Comparing with other three planting patterns,double-row concave ridge ＋ film mulching at early and late stages promoted the root growth of test cultivar during its whole growth period,with the root vigor increased significantly. Meanwhile,the leaf chlorophyll content and protective enzymes （SOD and POD） activities were higher,and the MDA content was lower. The leaf yield,output value,average price,and the proportion of superior leaves were also higher. Double-row concave ridge ＋ film mulching at early and late stages alleviated the senescence characteristics of roots and leaves,and improved the economic traits of flue-cured tobacco leaves,being the efficient planting pattern to product high-quality flue-cured tobacco leaves in Nanxiong tobacco-growing area of Guangdong Province.

关 键 词：烤烟 种植模式 双行凹垄 衰老特性 

分 类 号：S572[农业科学—烟草工业]