Method for increasing cabbage self-conpatible index treated by quercetin

A technology of quercetin and cabbage, which is applied in the field of quercetin treatment of cabbage self-incompatibility lines to improve the self-compatibility index, can solve the problems of no research reports, self-incompatibility, etc., and achieve less application , improved self-compatibility index, and responsive effects

A technology of quercetin and cabbage, which is applied in the field of quercetin treatment of cabbage self-incompatibility lines to improve the self-compatibility index, can solve the problems of no research reports, self-incompatibility, etc., and achieve less application , improved self-compatibility index, and responsive effects

CN1554227AInactive Publication Date: 2004-12-15SOUTHWEST AGRICULTURAL UNIVERSITY
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Take cabbage self-incompatibility line material 02-E1, and when the flower buds grow to 2-3 mm long, spray the flower buds with quercetin at a concentration of 1500 μmol / L every day at 9:00 am, and wait until 50% of the plants bloom Stop spraying. Under this treatment, the average pod setting rate was 0.76, the average number of seeds per pod was 6, and the self-compatibility index increased from 0.34 to 4.51.

Embodiment 2

[0013] Take the cabbage self-incompatibility line material 02-A1, and when the flower buds grow to 2-3 mm long, spray the flower buds with quercetin at a concentration of 1000 μmol / L every day at 9:30 in the morning, and wait until 50% of the plants are in bloom. Stop spraying. Under this treatment, the average pod setting rate was 0.81, the average number of seeds per pod was 4, and the self-compatibility index increased from 0.30 to 2.64.

Embodiment 3

[0015] Take the cabbage self-incompatibility line material 02-59, and when the flower buds grow to 2-3 mm long, spray the flower buds with quercetin at a concentration of 500 μmol / L at 10:00 every morning, and wait until 50% of the plants are in bloom. Stop spraying. Under this treatment, the average pod setting rate was 0.74, the average number of seeds per pod was 5, and the self-compatibility index increased from 0.26 to 3.64.

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Abstract

The present invention relates to quercetin treatment process of raising self-compatible index of cabbage. Quercetin solution of 500-1500 micromol / L concentration is sprayed to the bud of self-incompatible cabbage material to block the conducting of self-incompatible signal and overcome the self-incompatibility of cabbage. The said method is established on the basis of molecular mechanism, so that it has the features of less consumption, sensitive reaction, etc. The present invention has greatly raised self-compatible index or even conversion to self-compatible line.

Description

technical field [0001] The invention relates to the technical field of vegetable breeding, in particular to a method for treating cabbage self-incompatibility lines with quercetin to improve the self-compatibility index. Background technique [0002] Brassica oleracea L. has obvious heterosis and is widely used in production. Its hybrid seeds are mainly obtained by mating between self-incompatibility (SI) lines of cabbage. One of the main problems encountered in preparing cabbage hybrids with self-incompatible lines is that pollination at the bud stage is required for breeding self-incompatible lines, which is time-consuming and labor-intensive, which greatly increases the cost of seed production. In order to improve the self-compatibility during pollination, so as to facilitate the reproduction and preservation of self-incompatible lines, some researches have been carried out at home and abroad. Throughout the published research reports and literature, there are more than...

Claims

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Application Information

Patent Timeline
15 Dec 2004
Publication
CN1554227A
IPC
A01H1/02
Inventors
李成琼; 宋洪元