Breeding method of a kind of Hybrid S. chinensis

Abstract

The invention discloses a method for selecting the hybrid seeds of Brassica juncea var. multiceps. Yongxue No.3 of Brassica juncea var. multiceps is bred through hybrid seed production of Ningbo fine-leaf yellow Brassica juncea var. multiceps cytoplasm male sterile line 07-50A and fine-leaf mustard 07-2 inbred line Brassica juncea var. multiceps as a female parent and a male parent respectively. The Ningbo fine-leaf yellow Brassica juncea var. multiceps cytoplasm male sterile line 07-50A is obtained by hybridizing a cytoplasm male sterile source as a female parent and Ningbo fine-leaf yellow Brassica juncea var. multiceps to obtain an F1 generation and carrying out backcross breeding by using the Ningbo fine-leaf yellow Brassica juncea var. multiceps as a recurrent parent; and the male parent fine-leaf mustard 07-2 inbred line Brassica juncea var. multiceps is obtained by the inbred purification of a local variety of fine-leaf mustard having excellent comprehensive properties. The new species Yongxue No.3 obtained through the method has the advantages of high output, strong disease resistances, high stalk-leaf ratio, excellent processing property, and suitableness for the plantation of winter Brassica juncea var. multiceps.

Description

technical field [0001] The invention relates to the technical field of vegetable breeding, in particular to a breeding method for a new mustard hybrid - Yongxue No. 3. Background technique [0002] Mustard mustard (Brassica juncea Coss.var.multiceps Tsen et Lee.), commonly known as potherb mustard, belongs to Brassicaceae Brassica and is a variety of tillering mustard. Potherb mustard is widely planted in my country, and it is one of the main pickled vegetables in our country; Potherb mustard can be planted several times a year in my country. Those sown in winter and harvested in spring are called spring vegetables, and those sown in autumn and harvested in winter are called winter vegetables; The vegetable quality is relatively good, and it can avoid the adverse effects of bolting in spring. The cultivated area of ​​winter mustard is gradually increasing. There are abundant germplasm resources of potherb mustard, and obvious heterosis, but conventional varieties are basical...

AI Technical Summary

Problems solved by technology

The use of heterosis is an important way to improve the yield and quality of mustard mustard. Breeding new varieties of mustard mustard hybrids is of great significance for increasing farmers' production and income and meeting the needs of production and processing; the source of cytoplasmic male sterility that can be used in commercial breeding has been reported There are Ogura, Pol, hua, OuxinA, etc.; so far, there has been no report on the breeding method of hybrid varieties of potherb mustard

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