Yang Tie-zhao, Yang Zhi-xiao, Ke You-song, Wu Wen-bin, Zhang Xio-quan, Qiu Miao-wen
College of Tobacco Science, Henan Agricultural University, Zhengzhou, China.
Ying Yong Sheng Tai Xue Bao. 2009 Dec;20(12):2977-82.
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 Aulching 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.
以烤烟品种K326为试验材料，于2008年在广东省南雄烟区进行大田试验，研究单行垄作+前期覆膜、单行垄作+前后期覆膜、双行凹垄+前期覆膜、双行凹垄+前后期覆膜4种种植方式对其根系和叶片衰老特性及叶片经济性状的影响。与其他3种种植方式相比，双行凹垄+前后期覆膜促进了供试品种全生育期根系生长，根系活力显著提高。同时，叶片叶绿素含量和保护酶（SOD和POD）活性较高，MDA含量较低。叶片产量、产值、均价及上等烟比例也较高。双行凹垄+前后期覆膜缓解了根系和叶片的衰老特性，改善了烤烟叶片的经济性状，是广东省南雄烟区生产优质烤烟叶片的高效种植方式。
