Constituents of Leaf Tobacco as Affected by MH Spray to the Plant

[摘要] 1. Experiments were made on the influence of MH (maleic hydrazide) spray especially upon the quantity of chemical constituents of leaf tobacco produced. 2. While the nicotine content was reduced in the leaf treated with MH compared with that in the untreated leaf, the total N content showed no difference. 3. The total carbohydrate content in the leaf increased according to the degree of sucker-stopping effect of MH on the plant. The phenomenon was also remarkable in regard to the content of total sugar. 4. increase in carbohydrate wds more conspicuous when MH was applied on the whole plant than when it was applied only on the stem of the plant.

[学科分类] 农业科学（综合）