Method for propagating self-incompatible line of non-heading Chinese cabbage

A headed cabbage and affinity technology, applied in the field of non-headed cabbage breeding, can solve the problems of high cost, accelerated development and utilization of self-incompatible hybrids of non-headed cabbage, low yield, etc., and achieves the effect of saving labor.

Active Publication Date: 2018-03-02
NANJING INST OF VEGETABLE SCI
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Problems solved by technology

[0004] The present invention provides a large amount of breeding method for self-incompatibility of non-heading Chinese cabbage. Probl

Method used

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Embodiment 1

[0026] Embodiment 1 Propagation of non-heading Chinese cabbage self-incompatibility line

[0027] (1) According to the method of multiplication of large plants, the plants are planted in mid-November in Nanjing. The land preparation and transformation of the greenhouse will be completed before the middle and late October of 2016. Choose the common local 8332 greenhouse (the width of the greenhouse is 8 meters, the height of the top is 3.2 meters, and the height of the shoulder is 1.8), and the length of the greenhouse is 90 meters. A small semicircular shed is built in the shed, 6 meters wide, 1 meter on each side, 2.5 meters high at the top, and 1.6 meters high at the shoulder. The small shed can be plowed by machine, and a walkway is left in the middle of the double row. The width of the border is about 2 meters. The length of the small arched shed is 85 meters, leaving 3 meters at the head of the shed for the operation room, and 2 meters at the end of the shed for easy ope...

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Abstract

The invention discloses a method for propagating a self-incompatible line of non-heading Chinese cabbage. According to the method, in the flowering period of the self-incompatible line, high-concentration CO2 is used for treatment for a long time for breaking the self-incompatibility and overcoming the self-propagating difficulty of the self-incompatible line, and the propagating of the self-incompatible line of the non-heading Chinese cabbage is efficiently carried out through combination of CO2 automatic application, entomophilous pollination, later-stage screening and the like, rapid utilization of a self-incompatible hybrid of the non-heading Chinese cabbage is promoted, and large-scale propagating difficulty of the self-incompatible line of the non-heading Chinese cabbage in the priorart is overcome, thereby limiting the problem of rapid application of the self-incompatible hybrid.

Description

technical field [0001] The invention belongs to the field of non-heading Chinese cabbage breeding, and is specifically aimed at a technical method for increasing the yield of self-incompatible lines of non-heading Chinese cabbage. Background technique [0002] Non-heading Chinese cabbage (Brassica rapa L. Chinensis Group), commonly known as green cabbage and Chinese cabbage, is a cross-pollinated plant of the genus Brassica in the family Brassicaceae, which has significant heterosis. At present, non-heading Chinese cabbage utilizes heterosis mainly through two methods: male sterility and self-incompatibility, among which the use of self-incompatibility lines to breed new varieties is the main method, and self-incompatibility lines to breed new varieties have It has the characteristics of short breeding cycle, no adverse cytoplasmic effect, and high seed reproduction yield. [0003] The main methods used for self-breeding and breeding of non-heading cabbage self-incompatibil...

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Application Information

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IPC IPC(8): A01G22/15A01G7/02
CPCA01G7/02
Inventor 孙菲菲王夏魏猷刚刘金平
Owner NANJING INST OF VEGETABLE SCI
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