Breeding method of drought resisting Yanchuicao

Abstract

The invention belongs to a breeding method of a drought resistant lippia nodiflora. The breeding environment is selected in the regions of Hebei, Henan, Beijing, Jiangxi, Hunan and Hubei. The fry parent selects the wild lippia nodiflora grown in Japanese Islands with plump corollas and stick and strong stem between the mid June and the mid October as the female parent and the wild lippia nodiflora grown in Ji'an and Jiangyan areas in Jiangxi Province of our country with high drought resistance and adaptability as the male parent and crossbreeding. The lippia nodiflora bred by the method can greatly improve the quality of the lippia nodiflora and has the advantages of high drought resistance, large coverage area and increased soil phosphate fertilizer content by the residual body without virus diseases.

Description

technical field

[0001] The invention belongs to a method for cultivating drought-resistant rock weeping grass. Background technique

[0002] Phyla nadiflora (L.) Greene, scientific name: Phyla nadiflora (L.) Greene, perennial herbaceous plant, belongs to Verbenaceae, also known as: amaranthus, duck tongue Huang, duck bill Huang, duck tongue grass, Guojianglong, Guojiangteng. Rock weeping grass is widely distributed in warm regions all over the world, and often grows in humid places such as plains, mountains, and river beaches at an altitude of 300 to 2,300 meters. my country's rock weeping grass is distributed in Jiangsu, Jiangxi, Hubei, Hunan, Fujian, Taiwan, Guangdong, Sichuan, Guizhou, Yunnan and Tibet. The whole plant is covered with short hairs, the stems are slender, and the branches are prostrate on the sand or rocks, and the spread can reach 1-2m. Simple leaves, opposite, with short stalks, upper part of leaves with thick serrate margin, base narrowly cuneate, abou...