Qinsu pear
The parents of the new varieties cultivated by Shaanxi Fruit Tree Research Institute are Dangshan pear and Huangxian magistrate pear. It has been developed in the province. It is a high-yield, high-quality and storable variety.
The fruit is large, with an average weight of 231.8 grams per fruit. Nearly circular column. The peel is green and yellow. Fruiting pedicel longer, sepals deciduous. The flesh is white, the core is small, the meat is fine, crisp, juicy, sweet, contains 12.2% soluble solids, 7.6% soluble sugar, 0.15% titratable acid, vitamin C 3.05 mg / 100 g. The fruit is of high quality and can be stored until May of the following year.
The tree is strong in strength, sprouting and branching. Generally 5-6 years after planting, the fruit is mainly short fruit branch, and the yield is relatively high and stable. It blossoms in early May and matures in mid-September in Xingcheng area. The vegetative growth period is 212 days.
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Peach variety: may fire
The USDA California Horticultural Experimental Station was selected from Amken natural immature embryos by immature embryo culture. It was introduced into Zhengzhou Fruit Tree Research Institute of Chinese Academy of Agricultural Sciences in 1989. The fruit is oval, the two halves are symmetrical, and the top of the fruit is slightly convex; the average weight of a single fruit is 75 grams, and the maximum weight of the fruit is 110 grams; the peel is orange, comprehensively red, shiny, beautiful, and the skin is easy to peel off; the pulp is hard soluble, yellow flesh, no red pigment, more juice, fragrance, more sour and less sweet flavor; soluble solids 8.8%. Sticky core. The tree is strong and has a strong posture.
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Occurrence and control techniques of jujube armyworm
The jujube armyworm belongs to the family Lepidoptera. Jujube armyworm harms the leaves, flowers and fruits of jujube, which seriously affects the yield and quality of jujube. Jujube armyworm has a single feeding habit, which is only harmful to jujube and wild sour jujube, and the larvae feed on jujube leaves, flowers and fruits. There are three generations a year, and the pupa is cocooned under the bark and in the soil around the tree trunk. Eclosion began in late March and reached its peak in early April. The adults had strong phototaxis and scattered eggs were laid on smooth branchlets and leaves. The first generation larvae hatched in early May (before the Beginning of Summer)
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