Perennial cultivation method for annual cotton

A cultivation method and an annual technology, applied in the field of crop cultivation, can solve problems such as unfavorable cotton cultivation, unresolved male sterile line reproduction problems, premature aging and other problems, and achieve the effects of increasing seed production yield, simplifying seed production procedures, and prolonging the growth period

Inactive Publication Date: 2009-07-22
GUANGXI UNIV
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this inventive method has the following problems: one, according to one of the characteristics described in the patent, the area where the cotton plant can survive the winter is the area with the lowest winter temperature greater than 10°C, and the area that meets this temperature condition should belong to the mid-tropical area ( Edited by Sheng Chengyu et al., General Introduction to China's Climate, Science Press, 1986, p. 406), that is, southern Hainan Island and southern Yunnan, etc.
However, there are many typhoons in tropical areas in summer, which is unfavorable for cotton cultivation; secondl

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In 2005, a comparative experiment of 10 annual upland cotton varieties was carried out in Nanning, Guangxi. The random block design was repeated three times. The area of ​​the plot was 2×10m, and 45 plants were planted in each plot. The variety name and source are: (1) Zhongmian Institute 29F 1 (purchased from Hubei Seed Group Corporation); (2) Xiangzamian No. 3 F 2 (purchased from Hubei Provincial Seed Group Company); (3) E Kang Chong Cotton No. 1 (purchased from Hubei Provincial Seed Group Company); (4) Eza No. 4 F 2 (purchased from Hubei Seed Group Company); (5) Tai 175-1F 2 (gifted by Hubei Seed Group Corporation); (6) Zhong 928F 1 (presented by Shandong Academy of Agricultural Sciences); (7) National Examination Handan 284 (purchased from Xinyang City, Henan Province Seed Company); (8) Qianjin Lazy Han Cotton (purchased from Xinyang City, Henan Province Seed Company); (9) Space Cotton 28 ( Purchased from Xinyang City Seed Company, Henan Province); (10) Local var...

Embodiment 2

[0026] In 2004, in Nanning, Guangxi (the average temperature in January was 14.1°C, and the lowest temperature was 5.6°C), a graft combination test of 4 rootstocks and 2 scions was carried out, with a total of 8 rootstock / scion combinations (hereinafter referred to as "grafting combinations").

[0027] The four rootstock materials are: rootstock 1, perennial fluffy cotton collected from Hainan Island; rootstock 2, perennial kapok kapok collected from Hainan Island; rootstock 3, upland cotton cytoplasmic male sterile line P2001A (quoted from Hubei Province Academy of Agricultural Sciences)×Puff Cotton F 1 Hybrids; Rootstock 4, P2001A×Combat kapok F 1 Hybrids. The above 4 materials were planted in Nanning for 6 consecutive years, and all of them could survive the winter 100% normally. Their adult plants were treated with low temperature stress at 0°C in an artificial climate box, which showed that they could tolerate the low temperature of 0°C for 5 consecutive days. The inocu...

Embodiment 3

[0034] In Nanning in 2005, the seedlings (source with the same embodiment 1) of perennial fluffy cotton were used as rootstock, and the regenerated buds after the grafted plants of fluffy cotton and Ezamian No. 4 survived the winter in embodiment 1 were grafted as scions, and Cultivation of grafted seedlings. The grafting method and cultivation management measures are the same as in Example 1. After four years of continuous perennial root cultivation, the obtained grafted plants grow normally, and the yield is more than 25% higher than that of the annual Ezamian No. 4 sown under the same conditions.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a perennial cultivation method for annual cotton. The method comprises the following steps: firstly evaluating the natural wintering capability of the annual cotton; regarding the annual cotton incapable of wintering naturally, taking the gossypium perennial cotton seed resources or other hybrid species capable of wintering naturally as a parent stock for grafting, and obtaining the grafting plant through perennial root cultivation; and regarding the annual cotton capable of wintering naturally, directly planting the annual cotton and carrying out the perennial root cultivation of the original plant, or carrying out the grafting according to the method and then cultivating the grafting plan. The method realizes the perennial cultivation of the annual cotton, thereby enlarging the cultivation area of the cotton from the tropical zone to the southern subtropical zone. The grafted plant can grow with the perennial root for a long period till the variety is updated. The method is used for the hybrid cotton and can hold the heterosis and also greatly improve the yield due to the prolonged growth duration of the cotton. The method is used for cotton hybridization and seed preparation. As the nucleus male sterile line can adopt grafting vegetative propagation without a maintainer line, the method not only simplifies the seed preparation process, but also greatly can improve the seed preparation yield.

Description

technical field [0001] The invention belongs to the field of crop cultivation, and in particular relates to a perennial cultivation method for annual cotton. Background technique [0002] The main cultivated species of cotton are Gossypium hirsutum L. and G. barbadence L. . Upland cotton is an annual plant, and sea-island cotton has two types: annual and perennial, but annual sea-island cotton is still cultivated on a large scale. [0003] The hybrid vigor of cotton is very significant, but the hybrid vigor cannot be fixed, and farmers need to purchase hybrid seeds every year, which increases production costs. Moreover, the production of cotton hybrid seeds is difficult and costly. The reason is that although the nuclear male sterile line is easy to find the restorer line and form a strong dominant combination, its male sterility is difficult to maintain, and the hybrid seed field must be pulled out. About 50% of the male-fertile plants in the female parent area are concen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01G1/00A01G1/02A01G22/10
Inventor 周瑞阳
Owner GUANGXI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap