Dangshan pear
Originated in Dangshan, Anhui Province. Cultivated in Shanxi, Shaanxi, * * and Yunnan, with excellent quality. It is an excellent variety with high quality and high yield with strong adaptability in China. The fruit is large, with an average weight of 238.7 grams per fruit. The fruit is oblong. Fruiting pedicel medium long, sepals deciduous. The pericarp is green and yellow and becomes yellowish after storage. The flesh is white, the core is small, the meat is thicker, crisp, juicy and sweet. Contains 12.4% soluble solids, 7.35% soluble sugar, 0.1% titratable acid and 2.21 mg / 100 g vitamin C. The quality is high, and the fruit can be stored until February-March of the following year.
The tree potential is medium and strong, the sprouting ability is strong, and the branching ability is medium. Four years after planting, the fruit was mainly short fruit branch, high yield and stable yield. It blossoms in late April and matures in mid-late September in Xingcheng area. The vegetative growth period is 208 days.
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New varieties of apricot and plum
The flavor rose is the earliest American red flesh type apricot and plum hybrid variety. Its fruit is flat and round, the fruit is purple-black, the fruit surface is bright and bright, the fruit is very beautiful, the flesh is bright red, fragrant and sweet, and the quality is excellent. The soluble solids content is 17.2%, the fruit weight is 100120g, the fruit ripening period is in mid-late May, and the fruit development period is 80rel 85 days. The variety grows vigorously. The branching ability of branches is strong, and a large number of flower buds can be formed in the same year.
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Occurrence and control of jujube slime worm
Date slime worm belongs to lepidoptera, small leaf tortilla family. Common name sticky leaf insect, stick leaf insect, leaf curl insect etc. It is one of the main pests of jujube trees in China. 1. Characteristics of harm Date slime worm damages buds, leaves, buds, flowers and fruits by larval silking. Especially the third generation larvae are in the fruit coloring stage, often stick jujube leaves and jujube fruits with thin silk, nibble jujube skin and jujube flesh at the fruit stalk, resulting in a large number of fruit drops and rotten fruits. 2. Living habits in Shandong and River
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