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An ecological selection method for winter potato varieties

A potato and ecological technology, which is applied in the field of ecological breeding of winter potato varieties, can solve the problems that there is no research report on potato ecological breeding.

Inactive Publication Date: 2018-06-15
GUANGXI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This theory has been widely used in rice (Gong Jinlong et al., 2011; Mohapatra and Sahu, 1991), corn (Chen Xueqiu et al., 1999), soybean (Guo Shujin et al., 2014), wheat (Zhang Haiqing et al., 1995), sugarcane (Chen Xuekuan et al. , 1996) and cucumber (Gong Changzhou et al., 1997) and other crop varieties; but there is no research report on the ecological breeding of potatoes

Method used

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  • An ecological selection method for winter potato varieties
  • An ecological selection method for winter potato varieties
  • An ecological selection method for winter potato varieties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Ecosystem Analysis of Potato Winter Planting Area

[0029] At present, the production cycle of my country's potato winter planting areas is generally from October to March of the next year, mainly concentrated in provinces (regions) such as Guangxi, Guangdong, Fujian, Sichuan and Yunnan. The monthly average weather conditions of the provincial capital cities of Nanning, Guangzhou and Fuzhou in the past five years were analyzed.

[0030] 1. The number of rainy days during the winter planting period

[0031] The three provincial capitals of Guangxi, Guangdong and Fujian (Nanning, Guangzhou and Fuzhou) from October to next March show a gradual increase in the number of rainy days and a gradual decrease in the number of sunny or cloudy days. For example, the number of cloudy and rainy days from October to next March in Nanning was 9.6, 14.6, 14.4, 20.4, 21.0 and 23.0 days, Guangzhou was 13.4, 22.6, 20.4, 19.6, 23.0 and 22.2, Fuzhou was 5.6, 12.4, 11.2, 13.8, 18....

Embodiment 2

[0039] A method for ecological breeding of winter potato varieties, comprising the steps of:

[0040] (1) Identification and screening of cold-resistant potato materials: in March-April 2005, in the glass greenhouse of the Hokkaido University Farm in Japan (temperature 15-20°C, humidity 80-90%, natural light), selection of anti-resistant potato materials collected from all over Japan Late blight or 50 parts of early and mid-maturity materials that are less susceptible to diseases are potted, and placed in a constant temperature artificial climate chamber that the light intensity is 20000Lux (10 hours per day), the humidity is 90%, and the temperature is 8°C for 5 days after 10 days of emergence. Then lower the temperature to 4°C and keep the light intensity and humidity unchanged for 7 days. After being removed from the constant temperature artificial climate chamber, put it back into the glass greenhouse for 3 days to investigate the growth and development of the roots, stems,...

Embodiment 3

[0056] Identification of Potato Varieties for Cold and Odor Illumination

[0057] 1. Identification of wild production

[0058] (1) Seedling stage. The experiment was conducted from December 25, 2015 to April 15, 2016 at the experimental site of the Economic Crops Research Institute of Guangxi Academy of Agricultural Sciences in Nanning. During the experiment, at the end of January 2016, the potato seedlings were subjected to low temperature stress of -1 to 7°C in the field for 5 days. After the stress, the seedling damage level of Gui Nongshu No. 1 (the original line number is No. 22, the same below) is 0, the leaves and plants grow normally, the damage degree is light, and the cold resistance is strong, while the control group Feiwu Ruita (Potato winter The damage level of the seedlings is level 1, with 2 to 3 leaves wilting and curling.

[0059] (2) The potato block expansion period. The test was carried out from November 15, 2013 to March 31, 2014 at the Potato Research...

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Abstract

The invention belongs to the field of crop variety selection methods, and particularly provides an ecological selection method for winter potato varieties. A relationship between a good variety and ecological conditions is fully considered in the method. Through resource collection, screening, parent hybridization, low-temperature acclimatization of sexually reproduced seeds, low-temperature acclimatization and screening of sexual seedlings, natural selection under winter cropping conditions, and other manners, potato varieties which are cold-resistant, resistant to sparse sunlight, resistantto late blight, early-maturing and high in yield and which adapt to climate and ecological conditions in winter cropping zones of potatoes are obtained finally. The method provides technical and variety supports for potato breeding and production for autumn and winter cropping areas.

Description

technical field [0001] The invention belongs to the field of crop variety breeding methods, and specifically provides an ecological breeding method for winter potato varieties. Background technique [0002] Potatoes like to be cold, but they are not resistant to low temperature and frost. During the growth of autumn and winter potatoes, they are often subjected to occasional short-term low temperature damage, and even continuous low temperature frost disasters, which cause different degrees of damage and losses to the production of autumn and winter potatoes (Liao Mingyan and Chen Binyan, 2008; Deng Yingyi et al., 2017). However, since the current autumn and winter potato species are mainly planted as Feurita (Xiong Jun et al., 2013), which are not cold-resistant (Xu Juan et al. 2016, Deng Yingyi et al. 2017), low temperature frost has become an important factor for the healthy and sustainable development of autumn and winter potatoes. main limiting factor. At the same tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 邓英毅郑虚
Owner GUANGXI UNIV