Downward-arrowhead-shaped tree shape of pear tree and shaping method for same

A pear tree and tree shape technology, which is applied in the field of pear tree shape and its shaping, can solve the problems of uneven fruit quality, inconvenient field management, and large fruit size, and achieve the improvement of soluble solids and light conditions. The effect of improving and increasing the colonization density

Active Publication Date: 2012-09-12
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology

The tree shapes of pear trees cultivated in my country mainly include evacuated layered shape, "Y" shape, spindle shape, etc. Among them, the evacuated layered shape is composed of a trunk and 6 to 8 main branches, divided into three layers, and its crown is tall. Large size, high fruit yield, but inconvenient field management, poor ventilation and light transm

Method used

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  • Downward-arrowhead-shaped tree shape of pear tree and shaping method for same
  • Downward-arrowhead-shaped tree shape of pear tree and shaping method for same
  • Downward-arrowhead-shaped tree shape of pear tree and shaping method for same

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1

[0039] The pear tree of the present invention is completed in three years.

[0040] 1. The first year of plastic surgery: After the seedlings are planted, select full buds and fixed stems, with a fixed stem height of 70-80 cm; during the growing season, select 2 main branches in 2 directions at the base, and use wooden sticks to support the branches or pull with hemp rope Branches, the base angle of the branches is 65 to 68 degrees, and the two main branches extend left and right to the rows. The branch pulling technique is one of the key techniques for pear tree inverted "piece" shaping. In the winter of the year of planting, the central stem is lightly cut, and the second bud of the cutting mouth extends to the inter-plant; when pruning in winter, the main branch is selected for short cut, and the competing branches of the main branch and the extended branch are thinned or flattened. When the number of main branches is insufficient, the central stem can be fl...

Example Embodiment

[0044] Example 2

[0045] The comparative tests were carried out according to the method of Example 1 and the method described in the specific implementation of the pear tree "3 plus 1" tree shape (ZL201010230570.1), and the varieties were Fengshui, Cuiguan, and Huanghua pear. Compared with the "3 plus 1" tree shape, the inverted "one" tree shape is flat, the canopy opening is increased by 7.3 to 12.4%, the canopy light quantum flux density is increased by 8.7 to 11.8%, and the cultivation density is increased by 32.5%, every 667m. 2 Fruit yield increased by 8.1 to 13.3%, fruit soluble solids increased by 0.2 to 0.3%, and labor for sapling shaping was reduced by 2.4 to 3.1.

[0046] See Table 1 for the canopy parameters, fruit yield and quality indicators and labor requirements of pear trees planted by the two plastic methods.

[0047] Table 1 Comparison of canopy parameters, yield and quality indicators of pear tree inverted "one" shape and the amount of plastic surgery

[0048]

[0...

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Abstract

The invention belongs to the fields of fruit tree cultivation and fruit tree ecology, and discloses a shaping method for a downward-arrowhead-shaped tree shape of a pear tree. The tree shape has a tree height of 2.4-2.5 m, and a trunk height of 0.6-0.7 m, and only two main branches and one centre trunk of a first layer are reserved, therefore, the tree shape is called as the downward-arrowhead-shaped tree shape. The downward-arrowhead-shaped tree shape is small in top and large in bottom, the influence of upper branches on lower branches is less, and ventilation and light transmission conditions are good. The downward-arrowhead-shaped tree shape of a pear tree is an innovation based on the '3-plus-1' tree shape disclosed previously, which is simple in structure, convenient in culture, easy to grasp by fruit growers, convenient in field management, and easy to spread and popularize; and the tree shape is a novel high-quality and labour-saving cultivation tree shape of a pear tree.

Description

technical field [0001] The invention belongs to the fields of fruit tree cultivation and fruit tree ecology, and relates to an upside-down "one" shape of a pear tree and a shaping method thereof. Background technique [0002] Tree shape is the basis of pear tree cultivation. The tree shapes of pear trees cultivated in my country mainly include evacuated layered shape, "Y" shape, spindle shape, etc. Among them, the evacuated layered shape is composed of a trunk and 6 to 8 main branches, divided into three layers, and its crown is tall. Large size, high fruit yield, but inconvenient field management, poor ventilation and light transmission, serious pests and diseases, and uneven fruit quality. In order to improve the lighting conditions of pear trees, many pear producing areas in my country have improved the evacuated layered shape into a small crown layered shape with 5 to 7 main branches. After the period, the light is poor, and the canopy is very easy to shade, which is dif...

Claims

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Application Information

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IPC IPC(8): A01G17/00
Inventor 张绍铃伍涛吴俊陶书田齐开杰
Owner NANJING AGRICULTURAL UNIVERSITY
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