Indoor cultivation device for study of shade tolerance of corn varieties

Abstract

The invention belongs to the technical field of agricultural product cultivation, and particularly relates to an indoor cultivation device for study of shade tolerance of corn varieties. The indoor cultivation device for study of shade tolerance of corn varieties includes an incubator and a bottom limiting plate, wherein at least four support legs arranged at the bottom of the incubator, an accommodating cavity is formed in the incubator, and at least two vertically-distributed tooth slots are formed in the inner wall of the incubator; and upwardly extending slide rods are fixed at four corners of the incubator. A cultivation liquid in the incubator is used for cultivating corn seedlings and grown corn seedlings, the culture medium is pure, no easy interference is caused by external natural conditions, and the survival rate is high; since the incubator is provided with the bottom limiting plate which can be adjusted vertically, the seedlings can be limited through a limiting sleeve I,and the support height of the seedlings can be improved continuously through adjustment of the height of a movable limiting plate and application of different limiting sleeves during growth of the seedlings, and a shading effect can be achieved through shade cloth which is hung on the top plate, so that experiments are finished.

Description

technical field [0001] The invention belongs to the technical field of cultivating agricultural products, and in particular relates to an indoor cultivating device used for research on negative tolerance of maize varieties. Background technique [0002] Field experiments were conducted to study the changes in the morphology, physiology and yield traits of maize varieties under shading treatment. The results showed that compared with natural light, shading treatment reduced the plant height, stem diameter, prolonging the interval between male and female, and reducing the net photosynthetic rate. Decrease in specific leaf weight, decrease in aboveground dry matter, shortening and thinning of ears, decrease in cob diameter, decrease in number of grains in a row, and significant decrease in grain yield, among which the interval between sexes, net photosynthetic rate, specific leaf weight and grain number in a row were changed There is a significant or extremely significant corre...

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Problems solved by technology

[0003] The existing technology generally conducts shading tests in the field, but due to the long planting cycle and large changes in natural conditions, the obtained data is not true and accurate enough, resulting in many tests and a long cycle, while the existing indoor cultivation devices are generally for seedling cultivation device, unable to accommodate the needs of negative resistance tests

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