subject: Gibberellin Application In Vegetable Production - Laser Diodes Manufacturer - Laser Stars Projector [print this page] Gibberellin (920), is a highly efficient plant growth-stimulating hormone, can promote cell, stem elongation, increase in plant height, can promote the growth of genetic dwarf plants, promoting physical or viral-type dwarf plants growth; to break some vegetable seeds, tubers and bulbs and other organs dormancy and improve germination rate, since low-temperature vernalization and long-day role in promoting and inducing long-day flowering vegetables that year; the promotion of vegetables and fruit set, and fruit and fruit growth and development of , gibberellin at low temperatures, drought, low light or short-day conditions, such as stress application effect more pronounced.
1, formulation and preparation of dosage forms 85% of mother liquid crystalline powder, 4% EC, and 10mg tablets. EC and tablets soluble in water, can be directly prepared to use. Powder insoluble in water, soluble in alcohol, so preparation time, take 1g crystalline powder, into the graduated cylinder, add a small amount of alcohol or a high concentration of liquor dissolved, diluted with water to 1000ml, or approximately 1000mg/kg gibberellin liquor , filling a prescription can not be heated, the water temperature should not exceed 50 , when used according to the concentration required to obtain liquor figures.
Second, the application of technology in Vegetables
1. Anti-aging and fresh cucumber harvest, 25 ~ 35mg/kg spray melon 1 times, extended storage period. Watermelon harvest, 25 ~ 35mg/kg spray melons a time period of extended storage. Garlic Garlic Dip 40 ~ 50mg/kg base of 10 ~ 30min handle a second, can inhibit the upward transport of organic matter, and preservation.
2. Paul Flower and fruit, the promotion of fruit growth of tomato, 25 ~ 35mg/kg, flowering stencil printing one times, can promote fruit setting, fruit air-raid shelter. Eggplant, 25 ~ 35mg/kg, flowering stencil printing one times, to promote fruit setting and increase production. Pepper, 20 ~ 40mg/kg, flowering stencil printing one times, to promote fruit setting and increase production. Watermelon, 20mg/kg, flowering Fountain a time to promote fruit set, increase production. Or Yougua spray Yougua a time period, promoting Yougua growth and increase production.
3. To promote vegetative growth, early listing of celery, 15 to 30 days before harvest, 35 ~ 50mg/kg, 3 ~ 4 Tian spraying a times, a total of two times, an increase of more than 25%, root hypertrophy in the morning city 5 ~ 6 days. Chives, in the post-harvest plant 10cm high or 3 days, 20mg/kg spraying, an increase of more than 15%. Mushrooms, 400mg/kg, primordium formation in the block of Baptist materials look, fruiting bodies increased output.
4. Induce male flowers, improve seed production in cucumber seed, the seedlings 2 to 6 at the time Pianzhen Ye 50 ~ 100mg/kg gibberellin spraying can reduce the female flower to increase the male flowers to female plants to become hermaphrodite cucumber.
5. The promotion of bolting, flowering and improve seed multiplication factor of 50 ~ 500mg/kg of the GA with the spray or drops of plant growth point will enable the carrots, cabbage, radish, celery, cabbage and other crops for 2 years the growth of sunshine in the winter before the short-day under the conditions of bolting.
6. Breaking dormancy with 200mg/kg of gibberellin in the 30 ~ 40 high temperature soaking, after 24h germination, smooth break dormancy of lettuce seeds, this method than the hanging kinds of civil law save trouble deep, germination and stability. Breaking dormancy of potato tubers, 0.5 ~ 2mg/kg of the gibberellin solution dip the potato into cubes 10 ~ 15min, or 5 ~ 15mg/kg soak the entire potato 30min, the concentration of dormant varieties of short duration low, and long higher. Strawberry plants to break dormancy in the strawberry greenhouse forcing culture, semi-forcing culture, the cover shed heat three days after the bud appears that when more than 30%, 5 ~ 10mg/kg per plant gibberellin spray liquid 5ml, focus on leaf spray can make the top early flowering inflorescence, promote growth, early maturity.
7. Yes Paclobutrazol, CCC and other inhibitors of the antagonist, the use of tomato due to PCPA excessive harm that can be used to lift 20mg/kg gibberellin.
Third, pay attention to matters
1. Can not be mixed with alkaline substances, they can be acidic, neutral or chemical fertilizers, pesticides mix, increase production and urea mix better. Aqueous solution easy to decompose, not keep well, and should the existing service is used.
2. Use fertilizer only when an adequate supply of gibberellin under conditions in order to play good results, not a substitute for fertilizer.
3. Must master the use of appropriate concentration and the use of time, the concentration is too high will appear leggy, whitening, until the deformity or dead, the concentration is too low is not obvious. Right amount of leafy vegetables with liquid due to the size of the crop plants, density varies, the general solution for every 667m2 each with not less than 50kg.
