CN1125036A

CN1125036A - Crossbreeding technology of Chinese cabbage

Info

Publication number: CN1125036A
Application number: CN 95102561
Authority: CN
Inventors: 金平; 王志琴
Original assignee: JILIN PROV INST OF VEGETABLE AND FLOWERS AND PLANTS SCIENCES
Current assignee: JILIN PROV INST OF VEGETABLE AND FLOWERS AND PLANTS SCIENCES
Priority date: 1995-09-28
Filing date: 1995-09-28
Publication date: 1996-06-26

Abstract

The breeding technique of hybrid cabbage uses the white-leaf head-closed male-sterile "dual-purpose line" AB 8327 as female parent, uses the shanhaiguan short and robust self-line E832 as male parent and adopts such measures of safety isolation, rational arrangement of date of planting of male parent and female parent, determination of row-plating proportion and plantation density so as to prepare the hybrid cabbage seed. ADVANTAGE-. The invented seed quality is good, yield is high. and the hybrid cabbage obtained by using said invention features good quality, disease resistance and stable yield.

Description

Crossbreeding technology of Chinese cabbage

The present invention relates to a kind of seeding technique of hybridizing Chinese cabbage.

In existing breeds of Chinese cabbage, because seed selection and seeding technique grasp are not strict, impurity of seeds is degenerated, cause seed purity low, of poor quality, poor through the Chinese cabbage disease resistance of plantation gained, output instability, poor quality.

The object of the present invention is to provide a kind of seeding technique of hybridizing Chinese cabbage, it is strong to make the crossbreed of being made have a purity height, bud rate height, coordinate force, for characteristics such as kind timely, and this hybridization Chinese cabbage have disease-resistant by force, stable yield, advantage such as quality is good.

For achieving the above object, the technical solution used in the present invention is: do maternal with white group syncephalon male sterile " dual-purpose system " AB8327, the inbred line E832 of Shanhai Pass stump is a male parent, isolate by safety, rationally arrange father, maternal date of seeding, field planting column number proportion and plantation density make hybridization Chinese cabbage kind.

Parent's feature, characteristic

1、AB8327

1., botanical character: about 55 centimetres of plant height, about 58 centimetres of degree of development, about 18 of siphonal lobe, middle rib white, siphonal lobe light green color, long inverted ovoid, blade is more flat, and leaf margin has shallow incising, the long tubular of leaf-head, comfortable, the lobus cardiacus yellow green, the balling degree of packing is medium, and individual plant weighs 2～5 kilograms, the leaf-head fiber is less, on the quality.

2., biological property: middle seasonal strain, in 82～85 days vegetative period, growth potential is stronger, and is medium to the resistance of soft rot to virus, downy mildew and Leucoplakia better resistance, stable yields, storage property is medium.

2, male parent E832

1., botanical character: about 53 centimetres of plant height, about 56 centimetres of degree of development, about 16 of siphonal lobe, the green white of middle rib, outer leaf green, long inverted ovoid, blade is more flat, the long tubular of leaf-head is comfortable, the lobus cardiacus yellow green, the balling degree of packing is medium.

2., biological property: middle seasonal strain, in about 85 days of vegetative period, growth potential is stronger, and is medium to the resistance of soft rot to the better resistance of virus disease and downy mildew, stable yields.

The feature of the first generation of hybrid, characteristic

1, botanical character: the plant strain growth gesture is strong, and plant type is more upright, about 57 centimetres of plant heights, about 66 centimetres of degree of development, about 15 of siphonal lobe, green, the blade face is more open and more flat, and middle rib is green in vain, the long tubular of leaf-head, high about 50 centimetres of ball, 34～48 on ball leaf, comfortable, green-yellow, balling rate height.

2, biological property: in ripe property, about 85 days of vegetative period, the better resistance of, Leucoplakia zero sick and soft rot to frost, medium to the resistance of virus disease.

By taking above-mentioned seeding technique, the present invention has following good effect:

1, can guarantee to produce the purity of using seed, and for planting in time;

2, through planting this crossbreed, advantage such as resulting hybridization Chinese cabbage has disease-resistant, stable yields, and is of fine quality is promoted in middle part, Jilin Province large tracts of land, and is well received, obtains province's scientific and technological progress third prize in 1994.

Describe the present invention in detail below in conjunction with embodiment.

1, be maternal with AB8327, E832 is a male parent, group gas-mixing hybridization.

To isolate distance more than 1000 meters with a variety of Chinese cabbage, rape, potherb mustard, turnip and other breeds of Chinese cabbage when 2, planting.

3, male parent was than maternal early sowing 7～10 days.

4, after planting, this field planting of father and mother strain ratio of counting is 1: 2～4.

5, the distance between rows and hills of male parent is 60 * 40 centimetres, and maternal distance between rows and hills is 60 * 20 centimetres.

6, come into bloom and in time pull out educated strain in the maternal system.

7, behind the seed maturity, father, female parent will singly be received, single threshing, and maternal row seed is a crossbreed.

Claims

1, crossbreeding technology of Chinese cabbage is characterized in that: make female parent with white group syncephalon male sterile " dual-purpose system " AB8327, the inbred line E832 of Shanhai Pass stump is a male parent, isolate by safety, rationally arrange father, maternal date of seeding, field planting column number proportion and plantation density make hybridization Chinese cabbage kind.

2, seeding technique according to claim 1 is characterized in that: safety is isolated and to be meant 1000 meters of seed farms not having other a breeds of Chinese cabbage such as a variety of Chinese cabbage, rape, potherb mustard, turnip with interior.

3, seeding technique according to claim 1 is characterized in that: rationally arrange father, maternal date of seeding and be male parent than maternal planting early enough 7～10 days.

4, seeding technique according to claim 1 is characterized in that: this field planting of father and mother strain ratio of counting is 1: 2～4.

5, seeding technique according to claim 4 is characterized in that: plantation density is 60 * 40 centimetres of male parent distances between rows and hills, and maternal distance between rows and hills is 60 * 20 centimetres.