Guobao can promote the coloring and ripening of peach fruit.
Guobaosu is a new type of plant growth regulator, which is produced by Shanghai solvent Factory. In 1991 and 1992, Li Guangchen, Department of Horticulture of Beijing Agricultural University, conducted experiments on peach varieties such as "Zaofeng" and "Okubo". According to the reports of Li Guangchen and others on peach varieties such as "Zaofeng" and "Dajiubao" peach fruits were sprayed 4-3 weeks before the normal harvest period, the fruit could be colored 5-10 days in advance, and the fruit coloring index was significantly increased, the fruit was very beautiful, and the fruit ripening period was 3-10 days earlier. Early harvest does not reduce fruit firmness, soluble solids content and single fruit weight, but can increase fruit price by 0.30-0.80 yuan / kg, and the economic benefit is remarkable. The suitable concentration for pre-harvest spraying is 100-150 mg / kg for early-maturing varieties and 200 mg / kg for middle-maturing varieties.
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Problems that should be paid attention to in the use of pear fruit dilatins
Pear fruit expander is a plant growth regulator developed and utilized in recent years, and its effect is to promote fruit cell hypertrophy, especially in early and middle ripening pears. However, the improper use of pear fruit dilatins, not only can not achieve the desired effect, but also cause side effects. Therefore, pear trees that use dilatins must keep up with water and fertilizer, especially all-element chemical fertilizers to ensure sufficient nutrients to meet the needs of fruit growth and development, so as to achieve the ideal effect. In addition, it should be picked at the right time.
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Peach without walnut
The fruit is flat, the top of the fruit is sunken, the two halves are symmetrical; the average weight of a single fruit is 130.4 grams, the maximum fruit weight is 250g, the peel is green and white, the fruit surface is covered with 20% red spots or halos, and the skin is easy to peel off; the flesh is white, less red pigment, soft solute, juicy, sweet flavor and fragrance; soluble solids 14%. Leaving the core. The fruit matured on August 4 and developed for 122 days in Zhengzhou, Henan Province.
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