New radix scrophulariae species breeding method applied to southwest region

Abstract

The invention provides a new radix scrophulariae species breeding method applied to the southwest region. The breeding method comprises the following steps that 1, cross-region species resources are collected, and the ecological adaptability is investigated; 2, the rhizome morphology and the leaf morphology are taken as the type selection criteria, and type-classifying isolated planting is performed to screen out individual dominant plants in groups; 3, buds of the dominant individual plants obtained from the groups in the step 2 are planted in a mixed mode, and the rhizome morphology and the leaf morphology are taken as the plant morphology grouping criteria to screen out plant groups with the dominant biological characters and rhizome yield characters; 4, dominant individual plants in the plant groups with the dominant biological characters and rhizome yield characters are selected; 5, stability screening is performed to remove variant, disadvantaged and degraded plants. According to the breeding method, individual plant breeding in the groups is performed on the basis of group breeding, the good characters of the yield and quality are combined for new species breeding, and the defects of clone-train mixed breeding and individual plant selecting are overcome.

Description

technical field [0001] The invention relates to a method for breeding a plant variety, and more specifically relates to a method for breeding a new variety of Scrophulariaceae applied in Southwest China. Background technique [0002] Scrophulariaceae is the dried root of the Scrophulariaceae plant Scrophularianingpoensis Hemsl. It was first recorded in "Shen Nong's Materia Medica", listed as a Chinese product, and is one of the traditional Chinese medicines commonly used in my country. Scrophulariaceae is sweet, bitter, salty and slightly cold. It has the functions of nourishing yin and reducing fire, moistening dryness and promoting body fluid, detoxifying and sore throat. It is used for diseases such as heat entering the camp and blood, warm and toxic spots, febrile disease affecting yin, crimson tongue and polydipsia, fluid injury and constipation, bone steaming and labor cough, red eyes, sore throat, diphtheria, scrofula, carbuncle and sore. [0003] Scrophulariaceae ha...

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Problems solved by technology

As one of the main producing areas of Scrophulariaceae in Chongqing, the planting area has grown to 2000hm 2 It has become one of the main characteristic industries in Chongqing. However, there are no new varieties of Scrophulariaceae in production, and most of the cultivated varieties are local conventional species. The varieties are seriously degraded, the yield is low, the quality is not stable, and the economic benefits are low. The introduction of new varieties Most of "Zhexuan No. 1" and "Enxuancan No. 1" are not suitable for ecological factors such as local soil and climate. Therefore, this case has provided a high-yield and high-quality plant suitable for high-altitude areas in Chongqing through nearly 10 years of field experiment exploration. Breeding method of new varieties of Scrophulariaceae

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