Plateau sweet potato seedling annual breeding and supplying method

A supply method and seedling technology, which is applied in the field of annual breeding and supply of sweet potato seedlings in the plateau, can solve the problems of lack of high-quality seedling breeding technology, restricting production seedling breeding and supply, etc., and achieve the effect of high breeding efficiency and early supply of seedlings

Active Publication Date: 2022-06-07
云南省农业科学院经济作物研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In production, there is a lack of high-quality seedling technology adapted to local conditions, which seriously restricts the breeding and supply of production seedlings

Method used

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  • Plateau sweet potato seedling annual breeding and supplying method
  • Plateau sweet potato seedling annual breeding and supplying method
  • Plateau sweet potato seedling annual breeding and supplying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Taking the annual breeding and supply of 32 varieties of common potato in 10,000 mu as an example

[0038] 1. Preferred seed source

[0039] In the planting and production area of ​​the 32 variety of common potato in the mountain summer at an altitude of about 1800 meters, in the early field and the surrounding plots without pests and diseases, 1.2 mu of the 32 variety of common potato with robust and vigorous plant growth was selected as the plant selection object. Before frost damage occurred in the middle and late October, a batch of potato vines of about 1000kg per plant with vigorous growth, excellent shape and high yield, and typical characteristics of common potato 32 varieties were selected as the provenance. Cut the potato vines from the root upwards, with 3 knots in each section, and harvest about 100,000 plants. The fresh potatoes corresponding to a single plant were selected, and the remaining 1500kg after removing the damage was stored in the warehouse and...

Embodiment 2

[0055] Taking the annual breeding and supply of 3,000 mu of grey potato varieties in the cooperative as an example

[0056] Gray potato is a high-quality local variety in Yunnan Province. Due to the regeneration of non-virus-free seedlings after planting for many years, the quality problem of seedlings and seedlings is relatively prominent, which has a great impact on yield and quality, and has become a major problem in production. By guiding the local cooperative, the application of this technology has successfully achieved the purification, rejuvenation, high-efficiency breeding and supply of this variety, and the effect is outstanding. The practice is basically the same as the steps in the above-mentioned embodiment 1, and fine-tuning is done in some links, as follows:

[0057] In the link of "preferring provenance", due to the poor overall production situation, the range of plant selection was expanded, and a single plant was selected in the 15 mu gray potato field. Combin...

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Abstract

The invention discloses an annual breeding and supplying method for plateau sweet potato seedlings, which comprises the following steps: 1) preferably selecting a seed source, preferably selecting a batch of single-plant potato vines as the seed source in mid-to-late October, cutting the potato vines upwards from the root, and taking the potato vines as seedlings, (2) winter cropping greenhouse breeding: ridging and drip irrigation under a film are carried out in a greenhouse, and preferable seedlings are obliquely inserted after film mulching; collecting seedlings in early March of the next year, and taking the seedlings as seedlings; management is conducted in May, and timely harvesting is conducted according to the tuberization condition; 3) spring cropping open field propagation, open field ridging and under-film drip irrigation, and direct insertion of seedlings bred in a greenhouse after film mulching; collecting seedlings at the beginning of May, and taking the seedlings as seedlings; management is conducted till August, and timely harvesting is conducted according to the tuberization condition; 4) performing field production in summer and autumn, and using seedlings propagated in the open field; the breeding efficiency and quality of seedlings planted in spring and summer are improved, and meanwhile multi-season production of sweet potatoes is achieved.

Description

technical field [0001] The invention relates to the field of sweet potato planting, in particular to a method for annual breeding and supply of plateau sweet potato seedlings. Background technique [0002] Sweet potato is an annual or perennial dicotyledonous herb, originating from Peru, Ecuador, and Mexico in tropical America. It is a short-day crop that likes light and temperature, and is grown in more than 120 countries and regions around the world. Sweet potato has comprehensive and balanced nutrition, rich in a variety of active functional ingredients, and has the functions of both food crops and economic crops. Food production crops, one of the most important food sources for human survival, is also the best food recommended by WHO. In production, healthy and robust seedlings are bred from potato pieces or potato vines for planting. Therefore, seedling raising has become the first key link in sweet potato production, which is very important. The ecological climate va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/25A01G2/10
CPCA01G22/25A01G2/10Y02A40/25
Inventor 杨万林张磊卢丽丽徐宁生王颖包丽仙杨琼芬
Owner 云南省农业科学院经济作物研究所
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