Study on Maximum LAI Based on Leaf-shape Paper Weighing Method in Tobacco Field

doi:10.11924/j.issn.1000-6850.casb15040013

Abstract

Abstract: To provide scientific reference for correctly applying flue-cured tobacco LAI and its relevant technical parameters, 14 genotypes of flue-cured tobacco in their maximum LAI period were studied under the current quality tobacco leaves production in this paper. The results showed that it was completely feasible to use leaf-shape paper weighing method to quantify the leaf area correction coefficient of flue-cured tobacco. An average value of leaf area per plant in the field was 2.08 m², and their ranges were from 1.84 m² to 2.90 m². An average value of the maximum leaf area index was 3.47, and their ranges were from 3.07 to 4.83. Leaf area correction coefficient and the maximum LAI had large differences among different genotypes of flue-cured tobacco. It is appropriate to select a parameter for practical application by a specific variety, not use a constant value.

CLC Number:

S572

Xu Xingyang,Xu Anchuan,Wang Xinlin,Ouyang Jin,Ye Jiawei and Fang Zhengfen. Study on Maximum LAI Based on Leaf-shape Paper Weighing Method in Tobacco Field[J]. Chinese Agricultural Science Bulletin, 2015, 31(28): 46-49.

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