Seed harvesting: Generally from 6 to 7 months, when most of the flower discs on the plants turn yellow, they are timely harvested. The long flowering period of the celery is inconsistent after the inflorescence occurs. The maturity of the seeds on the same plant is very inconsistent. In order to ensure the quality of the seed, it should be harvested in stages.
Seed harvesting: Generally from 6 to 7 months, when most of the flower discs on the plants turn yellow, they are timely harvested. The long flowering period of celery is inconsistent after the occurrence of inflorescence, and the maturity of the seeds on the same plant is very inconsistent. In order to ensure the quality of the seeds, they should be harvested in stages. Generally about 50 kilograms of seeds per acre, seed weight 0.4 grams, the service life of 1 to 3 years.
1, autumn and old root large plant collecting method. The planting in the north of China in late June, when the seedlings have 3 to 4 leaves, the seedlings will be excavated and planted, and the poor and diseased seedlings shall be eliminated. In the first ten days of November, field selection was performed. Plants with the characteristics of this variety, petiole hypertrophy, smoothness, less fiber, and small roots were selected as seedlings. Roots were cut up and the upper leaves were cut off leaving only 13 to 16 cm long petioles. Ventilation place for more than 10 days, when the weather is cold, enter the pit or leave in the cold storage, planted in the open field in late March next year, spacing 50 to 60 cm, hole spacing 27 to 33 cm, 2 to 3 per hole, control watering before flowering Pay attention to the tillage seedlings, promote the vigorous growth of the seedlings, remove the side branches of the roots of the seedlings before flowering, cultivate the soil before mulching, or set up brackets to prevent lodging and planting seeds in open fields, and harvest the seeds in late July.
2, spring seedling seed collection method. Generally in early February in the greenhouse or nursery nursery, transplanted in the cold bed in late March, planted on the windy barrier in late months, the row spacing is 50 ~ 7020 ~ 27 cm, 2 or 3 per hole, management ibid. With this method, seed collection is simple and the cost is low, but it will increase the performance of variability of the species, leading to degradation of species, so it is not appropriate to use this method to collect seeds in successive years.
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