不同质地土壤对烤烟地上部生长动态的影响
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中国烟草总公司特色优质烟叶开发重大专项“浓香型特色优质烟叶开发”项目(合同号:110201101001(TS-01))资助


Effect of Different Textural Soils on Dynamic Growth of Flue-cured Tobacco Overground Parts
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    摘要:

    不同质地土壤的烤烟叶片品质有差异,探明造成这种烟叶品质差异的烤烟地上部生长动态,可以为不同土壤质地条件下烤烟栽培措施的提出和完善提供依据。2012年选取不同质地土壤:砂质壤土、粉砂质黏土和壤土,以烤烟品种NC89为试验材料开展试验。结果表明:砂质壤土处理的烤烟株高较大、茎围较小,地上部干重较小,地上部干重和叶片淀粉积累速率较低但积累时间长,叶片色素含量显著高于其他两个处理,色素降解速率较低;壤土处理的地上部干重和叶片淀粉含量较高,干重积累速率较高而淀粉积累速率在生长前期较高;粉砂质黏土处理在生长初期叶片色素含量较高,但色素降解速率也高,成熟期叶片色素含量较低,淀粉含量在成熟期显著高于其他两个处理。砂质壤土处理烤烟叶片的品质最好,粉砂质黏土烤烟叶片的品质不佳。烤烟在株高不超过120 cm,茎围不超过12 cm的前提下,地上部干重和叶片淀粉积累速率较低但积累时间较长,同时叶片色素含量在成熟期稍高有利于优质烤烟的形成。

    Abstract:

    The quality of flue-cured tobacco leaves on different soil textures was different. Exploring the difference of aerial parts dynamic growth could help to raise and perfect the basis of flue-cured tobacco cultivation measures under different soil texture conditions. Sandy soil, clay soil and loam soil were selected for the experiment with flue-cured tobacco breed NC89 in 2012. The results showed that the quality of flue-cured tobacco leaves was the best in sandy soil, while poor in clay soil. For sandy soil, the flue-cured tobacco plants were much taller, and its stem girth and dry weight (DW) were smaller. Though its DW and starch accumulation rate were lower, the accumulated time was longer in sandy soil, which contributed to the significantly higher of pigment content and the lower of pigment degradation rate comparing with the other two treatments. For loam soil, the DW and starch content were higher, and the DW accumulation rate was higher, but the starch accumulation rate was higher only in early growth stage. For clay soil, the pigment content in early growth stage was higher, but the degradation rate was also fast. As a result, the pigment content was lower and the starch content significantly higher than the other two treatments in mature stage. Under the premise of flue-cured tobacco plant height within 120 cm, and stem girth within 12 cm, the DW and starch accumulation rate are lower, but they accumulated for a long time. Meanwhile, the little higher content of pigment, the better quality of tobacco leaves.

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高传奇,刘国顺,杨永锋,刘典三,樊武广,张园营,贾春雷.不同质地土壤对烤烟地上部生长动态的影响[J].土壤,2014,46(1):158-164. GAO Chuan-qi, LIU Guo-shun, YANG Yong-feng, LIU Dian-san, FAN Wu-guang, ZHANG Yuan-ying, JIA Chun-lei. Effect of Different Textural Soils on Dynamic Growth of Flue-cured Tobacco Overground Parts[J]. Soils,2014,46(1):158-164

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  • 在线发布日期: 2014-03-26
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