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烟草根结线虫病产量损失估计的初步研究

DOI: 10.3321/j.issn:1000-7091.1990.04.019, PP. 111-115

Keywords: 烟草,根结线虫,根结指数,产量损失率

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Abstract:

根结线虫病对烟草产量及品质性状影响的研究结果表明,受根结线虫危害后,烟叶中蛋白质含量升高,而还原糖和烟碱含量下降.根据研究结果组建了根结线虫初始密度与烟草相对产量、线虫初始密度与病情,以及病情与产量损失率之间关系的数学模型.

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