The weather in Gubei town, Beijing

In autumn, we are dry with the earth and are suitable for eating more pears.

pear

Pear, an arbor plant of Rosaceae, has a spreading crown; Branchlets are stout and pilose when young; The biennial branches are purple-brown, with sparse lenticels; Stipules membranous, with glandular teeth at the margin.

Leaf blade ovoid or elliptic, apex acuminate or acute, first two faces villous, old leaves glabrous; Umbrella racemes, total pedicels and pedicels with fluff when young; The fruit is ovoid or nearly spherical, slightly flat and brown; Flowers are white; Flowering in April; The fruiting period is August-September.

Pear originated in Central Asia, distributed in Hebei, Shandong, Shaanxi, Gansu and other provinces in China, and also cultivated in Italy, the United States, Spain, Russia and France. Pear is cold-resistant, drought-resistant, waterlogging-resistant, salt-alkali tolerant, with developed roots, and likes light and temperature. It is advisable to choose gentle slope mountains with deep soil layer and good drainage, especially sandy loam mountains. The propagation mode of pear is mainly grafting propagation.

Knowledge expansion:

The root system is developed, the vertical root depth can reach more than 2-3m, and the horizontal root is widely distributed, which is about twice the crown width. If you like light and temperature, you should choose gentle slope mountains with deep soil layer and good drainage, especially sandy loam mountains. Strong sense of dryness and obvious layering. Early fruiting and long fruiting period, some varieties begin to bear fruit in 2-3 years, and the complete fruiting period can reach more than 50 years.

Pear trees are widely distributed, so their phenological periods are very different. As far as flowering period is concerned, pear trees in Huili, Sichuan generally bloom in the first half of February, and flowers in Yanbian, Jilin are white in mid-May. Yali pear bloomed in Changsha, Hunan Province in early March and in Beizhen, Liaoning Province in early May, with a difference of nearly two months.

Pear trees cultivated in the same area have different phenological periods due to different species and varieties. From germination to flowering, Qiuzi pear is the earliest, Pak Lei pear is a little later, Shali pear is later than Pak Lei pear, and Xiyang pear is the latest, and the variation range is about 10 day.

A few varieties of flowers and leaves open at the same time or bloom first and then bloom. After pollen fertilization, fruit begins to develop, receptacle develops into meat, ovary develops into heart, and ovule develops into seed.