Segmented cutting asexual reproduction and greenhouse overwintering method for Africa pennisetum alopecuroides

Abstract

The invention discloses a segmented cutting asexual reproduction and greenhouse overwintering method for Africa pennisetum alopecuroides. The method comprises the steps that soil in a greenhouse is turned over and prepared for furrowing before transplanting, wherein the soil is paddy field soil; stalks are selected and cut into segments, before October 1 every year, thick, strong and healthy stalks are selected, the middle of sections are obliquely cut, and the cut segments are wrapped by wet cloth; the segments are soaked in a plant growth agent for 1-2 min, the stalks are subjected to segmented cutting, sections on the segments are exposed out of a soil layer, water irrigation is carried out one time in the transplanting day, urea is applied after two weeks, and then water irrigation is carried out again; an oxygen-rich root-strengthening growth environment is created, natural light illumination of the greenhouse is achieved, and soil dry-wet alternate moisture management is kept. Reproduction and market supply of Africa pennisetum alopecuroides in the middle and lower reaches of Yangtze river are ensured, and the requirements for supply of rice high-photosynthetic-efficiency breeding materials or feed are met.

Description

technical field [0001] The invention belongs to the technical field of plant propagation, and in particular relates to a method for vegetative propagation of pennisetum pennisetum by section cuttings and overwintering in greenhouses. Background technique [0002] The close or distant species of crops have some specific excellent traits, such as disease resistance, insect resistance, stress resistance, high light efficiency, etc. It is hoped by scientists to introduce these traits into cultivated crops. Compared with C3 plants, C4 plants can not only improve CO 2 The assimilation efficiency of C4 plants can also inhibit photorespiration, especially under high light intensity, drought and high temperature conditions, C4 plants have a significantly higher photosynthetic rate. Therefore, it is believed that creating new C4 rice materials is one of the most important ways to break through the bottleneck of grain yield in the future. Chinese scientists have selected wide-compati...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for asexual rapid propagation of Pennisetum africanus by section cuttings and overwintering in greenhouses, aiming at solving the problem that Pennisetum africanus cannot bloom in the north of the middle and lower reaches of the Yangtze River in my country due to the limitation of photoperiod and low temperature in winter The problem of being strong and unable to survive the winter naturally

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