Method for screening shade-tolerant ground cover plants

Abstract

The invention discloses a method for screening shade-tolerant ground cover plants. The method includes the steps of experimental nursery selection, test block division, plant material preparation, planting, shading, management and shade tolerance evaluation. According to the method, a batch of cutting seedlings consistent in growth vigor are subjected to cuttage to serve as screening experiment materials, so that experiment errors caused by difference between plant material individuals are reduced, and influences of factors except the illumination factor are reduced. In four simulated naturalshading environments, a simple, scientific and accurate method is used for shade tolerance testing of 30 kinds of wild ground cover plants, the number of shade tolerance types of the plants is four, 17 kinds of plants with high shade tolerance are screened, the experiment range is large, data is reliable, and the screening efficiency is improved. The method for screening the shade-tolerant groundcover plants is high in practical value, the shade tolerance type of the plants can be know easily, and then the method is beneficial to introduction, wide cultivation and application of the ground cover plants.

Description

technical field [0001] The invention relates to the technical field of plant screening, in particular to a screening method for shade-tolerant ground cover plants. Background technique [0002] The construction of urban infrastructure has made urban gray buildings continue to increase, while green construction has been decreasing. In order to balance the development of urban gray construction and green construction, vertical greening has emerged as the times require, increasing a large number of green spaces. However, in the construction process, we not only need to consider the green construction in the vertical direction, but also the green construction in the horizontal direction, especially the greening of the shady environment formed by a large number of tall buildings. Poor growth or difficult survival in the environment. Ground cover plants refer to a type of plants that are dense, low or sprawling, cultivated in the open field during the growth period, have strong c...

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Problems solved by technology

[0003] Most of the existing studies on plant shade tolerance are directly planting the plant materials to be tested in artificially simulated shading environments, and analyzing their physiological characteristics under different shading conditions to evaluate the shade tolerance or analyze the shade tolerance ability. In order to reduce the experimental error and improve the screening efficiency, it is necessary to pay attention to the influence of site selection and plant material preparation in the report of a comprehensive screening method for shade-tolerant ground cover plants.

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