High-yield and good-quality insect-resistant cotton hybrid with big cotton bolls and breeding method thereof

Abstract

The invention relates to a high-yield and good-quality insect-resistant cotton hybrid with big cotton bolls and a breeding method thereof, and the method is characterized in that Xing cotton 24 is selected as a female parent and Mei cotton BP410 is selected as a male parent. The growing period is about 125 days, the plant height is 120cm, the plant is in a tower shape, the structure is reasonable, the branches have clear layers, and the light transmission is good. The sizes of leaves are appropriate, and the leave color is lighter. The whole plant has uniform cotton bolls, strong cotton boll-setting performance, high cotton boll yield, and about 150 cotton bolls can be grown on a single high-level rich water cultivating plant. The boll cells are circular, the single boll of a medium flow is above 6.5g, the ginning outturn is 41.43, and the blossom before frost is 85.05 percent. The fiber quality is good, the boll shell is thin, the boll opening is smooth, the picking is easy and the flower is white. Autumn cotton bolls and cotton bolls in dog days are in a large number, not premature, high temperature and low temperature resistant, can prevent blight, are certainly resistant to cotton tintinnid and pink tintinnid, have high and stable yield, and generally the yield of seed cotton per mu is 400 kilos to 500 kilos.

Description

technical field [0001] The invention relates to a high-yield and high-quality large peach insect-resistant cotton hybrid and a breeding method, which is specially used for the high-yield cotton hybrid and belongs to the field of crop breeding. Background technique [0002] Due to the lack of high-yielding cotton varieties, the unit output and unit profit of cotton in my country are declining year by year. [0003] In the 2008 agricultural year, China's total cotton output was 8.00MMT; in 2012, it was reduced to 6.85MMT. From 2008 to 2012, the unit output values ​​of each year were 1.34, 1.33, 1.25, 1.34 and 1.36 respectively, showing a downward trend. The output value in the 2010 / 11 agricultural year was 2433 yuan per mu, while in 2011 / 12 it was 1995 yuan, a decrease of about 18.5%. Output (especially unit output and unit profit) has dropped sharply, while total cost and unit cost consumption have risen sharply. The total cost in 2010 / 11 was 1242 yuan per mu, while in 2011...

AI Technical Summary

Problems solved by technology

Its purpose is to provide a high-yield cotton variety and a selective breeding method to solve the problem of lack of high-yield cotton varieties in my country and affect cotton production.