Gibberellin (GA), commonly known as 920, is a plant growth regulator that plays an important role in the growth of plants. Its application effect is closely related to its concentration, application time, method, climate, growth, management and so on. Before use, you should fully understand its nature, role and methods of use and precautions to prevent adverse consequences due to unfamiliar nature or improper use of technology. The double towel holder has been created to make the bathroom an even nicer place to be. The double rails represents a playful combination of lines flowing in harmony. High quality design at friendly prices. A favorite in hotels and home decorations. Double Towel Rail,Double Towel Rack,Dual Towel Rack,Double Towel Holder Kaiping city Pinsen Sanitary ware Co.,Ltd , https://www.corpthen.com
First, the benefits of application 1. Promote the stolon. The quality of strawberry planting seedlings is directly related to the high and low yield and quality of strawberry. It is the key to the success of strawberry cultivation. Spraying an appropriate amount of gibberellin during seedling can promote the vigorous growth of the mother plant, and grow the stalks in the early stage to increase the yield and quality of the seedlings. Generally, after the mother plant is planted for 2~3 weeks, the spraying of the stolon is started, and the concentration is 50~100 mg/L. It is better to spray 2 times, and the interval is 7-10 days.
2. Break sleep, promote growth, and mature early. After the shed, the strawberry is sprayed with 5~10 mg/L gibberellin at the beginning, and the concentration varies with the variety. Deep dormant varieties such as Dukla, Baojiao early, can be sprayed once with 10 mg / liter, interval 7 to 10 days, according to the growth and then spray 5 mg / liter once; dormant shallow varieties such as Zhang Ji, Hong Shimei, with Spray once at a concentration of 5 mg / liter. Pay attention to the spraying time. If the spraying is too early, it will turn the axillary bud into a stolon. If it is too late, it will not promote the flowering effect and only promote the elongation of the petiole. In particular, the concentration should not be too high, otherwise the plants are long, the inflorescences are too long, consume a lot of nutrients, and severely reduce production.
Second, the application method 1. Nursery According to the Chinese pesticide network , strawberry spray gibberellin can promote the early growth of strawberry mother plants, more common stolons, so that the amount of seedlings increased by 30% to 40%, the proportion of first-grade seedlings increased significantly. During the spraying period, it is advisable to spread the leaves to the beginning of the bud, and the early spray is better than the late spray. The optimum spray concentration is 50~70ppm.
2. Spraying gibberellin on protected cultivated strawberries has the effects of breaking dormancy, promoting plant growth and development, early phenological period and early maturity, and increasing yield, especially in promoting cultivation, which has a significant effect on breaking dormancy and overcoming plant dwarfing. . The optimal application period is generally about 7 days after the insulation of the shed (ie, germination to bud stage), the optimal concentration is 5~10ppm, and the dosage per plant is 3~5ml. If the concentration is too high, it will appear lengthy, resulting in reduced yield.
3. Open field cultivation The application of gibberellin on openland strawberries can be harvested 5 to 6 days earlier, and the harvesting period is about 7 days earlier, and the yield is increased by about 10%. The suitable spraying time is from the leaf to the beginning of the bud, and the optimum concentration is 3~5ppm.
III. Precautions for Spraying Pesticides 1. Gibberellin should not be directly dissolved in water. Dissolve it with a small amount of alcohol or high-alcohol before use, and then dilute to the desired concentration.
2. Gibberellin is easily decomposed in the presence of alkaline substances and high temperature, so it cannot be mixed with alkaline drugs and should be stored under low temperature and dry conditions.
3. The aqueous gibberellin solution is prone to failure and should be used now. Select a sunny day at noon when the temperature is high, spray the heart, focus on the leaves, the droplets should be fine, to be even.
4. Different varieties of strawberry are sensitive to gibberellin and should be applied to large areas after testing. At the same time, its spraying effect is also affected by factors such as temperature, humidity and light, and should be flexibly controlled when applied. But also pay attention to the impact on the quality of the strawberry, to ensure the quality of the fruit.