Method for optimizing agronomic trait of flue-cured tobacco variety Guangdong tobacco 98 tobacco plant

Abstract

The invention provides a method for optimizing an agronomic trait of a flue-cured tobacco variety Guangdong tobacco 98 tobacco plant. The method comprises the steps of conducting cigarette ridge earth-up main treatment and soil recarburization assistant treatment on a transplanted cigarette plant, wherein the cigarette ridge earth-up main treatment comprises the procedures of uncovering film, conducting earth-up and covering straw during the resettleing growth stage, and the soil recarburization assistant treatment comprises the procedures of spreading turfy soil along a ditch in the cigarette ridge and then uniformly mixing with a fertilizer. According to the method, through the treatment of earth-up and soil recarburization, the influence of the treatment on delaying senility of leaves in each part of the cigarette plant in a land for growing field crops is discussed, and theoretical foundations are provided for actual production of the land for growing field crops with the adoption of a reasonable cultivation technique so as to improve the maturity-resistance of cigarette leaves in the field, improve the quality of the cigarette leaves, and manifest the highly flavored type style and characteristics of the cigarette leaves. The growth and development environment of the root of the cigarette plant in the land for growing field crops are effectively improved through the earth-up and the recarburization, thus the growth and development of the overground part of the cigarette plant in the land for growing field crops are promoted, and the agronomic trait is optimized in varying degrees. Measures of the earth-up and the recarburization have no interaction effects on the agronomic trait of the cigarette plant in the land for growing field crops, and the earth-up and the recarburization play independent roles.

Description

technical field [0001] The invention relates to the technical field of tobacco cultivation, in particular to a method for optimizing the agronomic traits of the flue-cured tobacco variety Yueyan 98. Background technique [0002] Yueyan 98 was obtained by crossing Coker206 as the female parent and K326 male parent to obtain F1, which was obtained through selfing, pedigree selection, backcross aggregation, and pedigree selection again. This variety grows steam in the field, has strong growth potential, good plant type, wide adaptability, and stable genetic traits; it has good maturity, loose leaf structure, moderate leaf thickness, and rich oil content; the internal chemical composition of tobacco leaves is coordinated, and the aroma is good. Sufficient quantity; medium resistance to black shank, bacterial wilt, root-knot nematode, moderate resistance to TMV, CMV, and red spot disease; yield, average price, output value, proportion of top-quality tobacco, and proportion of hig...

AI Technical Summary

Problems solved by technology

[0003] Due to soil degradation and extensive cultivation management in the tobacco area, there will be problems such as underdeveloped root system of field tobacco plants, stunted growth of field tobacco plants, poor field ripening resistance of tobacco leaves, and insufficient harvest maturity, which will eventually be reflected in the quality and style of tobacco leaves. problem, there is no better way to improve it in the prior art

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