A kind of hybrid breeding method of high-yield and disease-resistant celery
A hybrid breeding, high-yield and disease-resistant technology, applied in horticultural methods, botanical equipment and methods, chemicals for biological control, etc., can solve the problems of low hybridization rate of celery, poor uniformity of offspring, etc., to improve seedling resistance The effect of disease resistance, neat height of offspring and shortening seedling period
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Embodiment 1
[0025] A method for hybrid breeding of high-yield disease-resistant celery, comprising the following steps:
[0026] 1. Select the Baimiao celery cytoplasmic male sterile line as the female parent, and the American celery maintainer line as the male parent;
[0027] 2. Establish an isolation area, plant the male parent and the female parent in the isolation area, the row ratio of the male parent and the female parent is 1:2, the row spacing between the female parent is 30cm, the row spacing between the male parent and the female parent is 50cm, and the planting density of the male parent is 9000 plant / mu, and the planting density of the female parent is 13,500 plants / mu, and the 1000m from the isolated area to the isolated area is a blank area, spraying medicament 2 times a day at the seedling stage, and 5L / mu each time; wherein, the composition of the medicament is : 6-BA 60mg / L, Ethephon 75mg / L, KH 2 PO 4 380mg / L, Na 2 HPO 4 460mg / L, syringaresin acetylglucoside 3g / L, ...
Embodiment 2
[0033] The difference between embodiment 2 and embodiment 1 is:
[0034] Step 2 is to establish isolation area, plant male parent and female parent in isolation area, male parent and female parent line ratio is 25cm between row spacing between male parent and female parent, 40cm between male parent and female parent, male parent and female parent's The planting density is 11,000 plants / mu, and 1000m from the isolated area to the isolated area is a blank area. The pesticide is sprayed once a day at the seedling stage, and each dose is 4L / mu; the ingredients of the pesticide are: 6-BA55mg / L, ethylene Lee 70mg / L, KH 2 PO 4 400mg / L, Na 2 HPO 4 550mg / L, syringaresin acetylglucoside 2g / L, the balance water.
Embodiment 3
[0036] The difference between embodiment 3 and embodiment 1 is:
[0037] Step 2 is to establish isolation area, plant male parent and female parent in isolation area, male parent and female parent row ratio are 1:2 row spacing 30cm between female parent, male parent and female parent row spacing 60cm, the planting density of male parent is 8000 plants / mu, and the planting density of the female parent is 14000 plants / mu, and the 800m from the isolated area to the isolated area is a blank area, spraying medicament 2 times a day at the seedling stage, 5L / mu each time; wherein, the composition of the medicament For: 6-BA 50mg / L, Ethephon 77mg / L, KH 2 PO 4 380mg / L, Na 2 HPO 4 480mg / L, syringaresin acetylglucoside 5g / L, the balance water.
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