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Method for increasing flowering rate and fruiting rate of sweet potatoes without grafting in northern area

A technology for flowering and fruiting, sweet potato, which is applied in the fields of crop breeding and plant physiology, can solve the problems of long light time, easy shedding of flowers, failure to bear fruit, etc., achieves the effect of thick plant base, avoiding grafting procedures, and increasing the number of

Inactive Publication Date: 2015-04-22
TAIAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sweet potato is a short-day plant. Due to the long sunshine time in northern China, most varieties cannot bloom under natural conditions in the northern region. Even if some varieties that are not sensitive to light can bloom naturally, the flowers are easy to fall off and cannot bear fruit.

Method used

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  • Method for increasing flowering rate and fruiting rate of sweet potatoes without grafting in northern area

Examples

Experimental program
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Effect test

Embodiment 1

[0016] The method for improving the flowering and seeding rate of sweet potato without grafting in the northern region includes the following steps: (1) Select excellent parent materials Yuzi No. 7 and Xu 18 with a large number of flowers and a long flowering period, and select healthy and disease-free seedlings without grafting;

[0017] (2) Choose a flowerpot with a diameter of 30cm and a height of 35cm, select the soil of the plow layer in the field, air-dry the soil, and fill each pot with 20-25kg of air-dried soil;

[0018] (3) Apply sufficient base fertilizer, topdress regularly, apply organic fertilizer 2kg / pot, compound fertilizer 0.2kg / pot, mix with soil before loading soil; start 30 days after seedling planting, fertilize once every 10-15 days, Mainly apply organic fertilizer bean cake, 50g each time alone;

[0019] (4) Plant seedlings in early and mid-June, and pre-plant 2 plants in each pot. After the potato seedlings are completely alive, remove a relatively weak ...

Embodiment 2

[0022] The method for improving the flowering and seeding rate of sweet potato without grafting in the northern region includes the following steps: (1) Select excellent parent materials Yuzi No. 7 and Xu 18 with a large number of flowers and a long flowering period, and select healthy and disease-free seedlings without grafting;

[0023] (2) Choose a flowerpot with a diameter of 35cm and a height of 45cm, select the soil of the field plow layer, air-dry the soil, and fill each pot with 20-25kg of air-dried soil. If the soil is clay, add an appropriate amount of sand, and the mixing ratio is 10: 1-12:1;

[0024] (3) Apply sufficient base fertilizer and topdress regularly. Apply 2kg / pot of organic fertilizer as base fertilizer, 0.2kg / pot of compound fertilizer, and mix with the soil before loading the soil; start 30 days after planting seedlings, fertilize once every 10-15 days, mainly apply organic fertilizer peanut cake, each time alone Use 55g;

[0025] (4) Plant seedlings...

Embodiment 3

[0028] The method for improving the flowering and seeding rate of sweet potato without grafting in the northern region includes the following steps: (1) Select excellent parent materials Yuzi No. 7 and Xu 18 with a large number of flowers and a long flowering period, and select healthy and disease-free seedlings without grafting;

[0029] (2) Choose a flowerpot with a diameter of 32cm and a height of 40cm, select the soil of the field plow layer, air-dry the soil, and fill each pot with 20-25kg of air-dried soil. If the soil is clay, add an appropriate amount of sand, and the mixing ratio is 11: 1;

[0030] (3) Apply sufficient base fertilizer and topdress regularly. Apply 2kg / pot of organic fertilizer as base fertilizer, 0.2kg / pot of compound fertilizer, and mix with the soil before loading the soil; start 30 days after planting seedlings, and fertilize once every 10-15 days, mainly using organic fertilizers such as bean cake and peanut cake , mixed with 50-55g, the blending...

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Abstract

The invention discloses a method for increasing the flowering rate and fruiting rate of sweet potatoes without grafting in the northern area. According to the method for increasing the flowering rate and fruiting rate of the sweet potatoes without grafting in the northern area, excellent parent materials easy to bloom are selected, robust disease-free strong seedlings are selected, and grafting is not conducted; topsoil in large land is placed in large pots for potted planting, sufficient base fertilizer is applied, and the organic fertilizer such as bean cakes and peanut cakes are applied once every ten to fifteen days; the seedlings are planted in early of middle of June, and short-day treatment is conducted for twenty to thirty days after the seedlings grow in the nutritive environment for about thirty days; checking is conducted at regular times, and underground bulk tuberous roots are cut off, so that the amount of nutrition consumed by tuberous roots is reduced.

Description

technical field [0001] The invention relates to the fields of crop breeding and plant physiology, in particular to a method for improving the flowering and seed setting rate of sweet potatoes in northern regions without grafting. Background technique [0002] Sweet potato is a short-day plant. Due to the long sunshine time in northern China, most varieties cannot flower under natural conditions in the northern region. Even if some varieties that are not sensitive to light can bloom naturally, the flowers are easy to fall off and cannot bear fruit. This habit of sweet potato has become the main obstacle of hybrid breeding. In order to overcome this obstacle, sweet potato breeders have carried out research on various technical methods. During the breeding process, a combination of grafting and short-day treatment is usually used to promote flowering and fruiting of sweet potato. [0003] There are many factors that affect sweet potato flowering, among which light, temperature...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C21/00
CPCA01C21/005A01G2/30
Inventor 刘桂玲孙哲高俊杰郑建利刘中良赵丰玲田昌庚杨俊
Owner TAIAN ACAD OF AGRI SCI
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