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Method for improving cold resistance of pistachio stocks

A technology of rootstocks and fine varieties, which is applied in the field of agricultural biology and agricultural planting, can solve the problems of freezing damage and weak cold resistance, and achieve the effect of avoiding low temperature freezing damage in winter and improving the seedling preservation rate in winter

Inactive Publication Date: 2011-02-09
HORTICULTURE INST OF XINJIANG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cold resistance of Chinese Pistacia chinensis is weak, and freezing damage will occur at a low temperature of -15°C

Method used

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  • Method for improving cold resistance of pistachio stocks

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Pistachio is selected in the Kashgar area, the main cultivation area in China, and can be grafted when the sap of the rootstock of Pistacia chinensis starts to flow in late March. Irrigation is required 10-15 days before grafting. When grafting, the soil around the base of the rootstock trunk is first planed to a depth of 5 to 10 cm, and then grafted at the rhizome of the rootstock. After years of observation, most of the grafted plants still germinated normally after experiencing the extreme low temperature of -23°C.

Embodiment 2

[0018] Scion collection: Generally at the end of February or early March, from the scion picking nursery of good varieties or the plants of good varieties with strong growth, annual branches with full bud eyes and no signs of drying are selected as scions. The collected branches are bundled into bundles of 50, and the species, sex, and quantity are marked, and then refrigerated or stored in the sand in the cellar for later use.

[0019] Rootstock irrigation: 10 to 15 days before grafting, fertilize and irrigate the rootstock garden of Pistacia chinensis once. Fertilization is mainly based on farmyard manure, and a certain amount of nitrogen fertilizer is topdressed at the same time. The total amount of fertilizer applied per mu is 2-3 tons of farmyard manure and 15-20 kg of urea. This is conducive to promoting the activities of the cambium of the tree body and improving the survival rate of grafting.

[0020] Digging soil around the stem of the rootstock: Dig the soil at the ...

Embodiment 3

[0023] Embodiment three: the relationship between grafting site and survival rate

[0024] In order to verify the actual cold-proof effect of the low-position grafting provided by the present invention on the Coptis chinensis stock, the present invention has done a large amount of two kinds of grafting comparative tests in Jiashi County Horticultural Field in Kashi area for two consecutive years. In the experiment, pistachio pistachio was grafted in the spring of 2007 and 2008 by laparotomy grafting with Chinese pistachio as material. The variety "Kerman" was used, and a small amount of male plant variety "Peters" was used, and the ratio of male to female was 10:1. Before overwintering, the base of the seedlings should be protected from cold by 15-20 cm. After overwintering (the lowest temperature in winter of 2007 / 2008 was -23°C, and the lowest temperature in winter of 2008 / 2009 was -17°C), the rootstock (pistacia chinensis) and scion (pistacia chinensis) of pistachio were i...

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Abstract

The invention discloses a method for improving the capability of Xinjiang pistachio stocks for living through winter safely. In the last ten-day period of Match every year, when the body fluid of the stocks of pistacia chinensis bunge begins to flow, the stocks of pistacia chinensis bunge are required to be irrigated 10 to 15 days before grafting; and in grafting, the soil around the base part of the trunks of the stocks is dug to a general depth of 5 to 10 centimeters, and the stocks are grafted at the root stalk parts. The low-position grafting method of the invention can bury the stocks of pistacia chinensis bunge with low cold resistance underground, thereby effectively preventing low-temperature cold damage in winter. The method provides a safe guarantee for the large-area promotion and application of pistacia chinensis bunge serving as the Xinjiang pistachio stocks and therefore has a high application value.

Description

field of invention [0001] The invention relates to the technical field of agricultural planting in the field of agricultural biotechnology. Specifically, the present invention relates to the technical field of a method and application for improving Xinjiang pistachio rootstock safe overwintering. Background technique [0002] Pistachio, also known as pistachio, is one of the four major nut tree species in the world, and it is also an excellent tree species for sand control and soil and water conservation. Pistachio has a long history of cultivation in Xinjiang, and it is a rare fruit tree with local characteristics. It is one of the tree species with great potential for the development of characteristic forest and fruit industry in southern Xinjiang. [0003] Pistachio has good market prospects and high economic benefits. In recent years, the enthusiasm for developing pistachio in Xinjiang has been very high. However, the pistachio traditionally planted in Xinjiang is bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G1/06
Inventor 郝庆王建友李群池文泽
Owner HORTICULTURE INST OF XINJIANG ACAD OF AGRI SCI
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