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Method for seeds producing crossbreed of corn in 'Liyu' number 13

A hybrid, corn technology, applied in the fields of botanical equipment and methods, plant genetic improvement, angiosperms/flowering plants, etc., can solve problems such as poor yield, disease resistance, and stress resistance

Inactive Publication Date: 2007-10-10
赵劲霖
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Problems solved by technology

Since the 1980s, my country has introduced a large number of hybrids from major corn-producing countries in Europe and the United States for comparative testing. Up to now, no variety has met the requirements for production, promotion and application in my country in terms of comprehensive traits. Excellent, but its disease resistance and stress resistance are poor; some varieties are outstanding in resistance and green retention, but in terms of high yield, they are obviously inferior to the existing main varieties in China

Method used

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  • Method for seeds producing crossbreed of corn in 'Liyu' number 13

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Embodiment Construction

[0011] The present invention uses the inbred line 5812 as the female parent and the male parent of the inbred line H598 as the male parent to prepare a hybrid variety Liyu No. 13. The parental inbred line 5812 was carefully selected and bred by Zheng 58 × Mo 17 crossing, using Zheng 58 as the recurrent male parent for 3 generations, and then selfing for 5 generations. The male parent of the inbred line H598 was bred by crossing Dan 598×Dan 340, using Dan 598 as the recurrent male parent for 1 generation, and then self-crossing for 7 generations. Its performance is: the seedling sheaths are purple-red, the leaves are dark green, the seedlings are strong, the height of the adult plant is 255cm, the ear position is 105cm, the plant type is compact, the leaves are raised, and the stems are tough. Well-developed root system, in the powder loosening stage, in the silking stage, the ear silk is light purple in color, the ear is tube-shaped, the ear length is 18-20cm, the ear diameter...

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Abstract

A method for preparing the hybrid corn Liyu B includes such steps as hybridizing between Zheng 58 and Mo 17, backcrossing with Zheng 58 as male parent by 3 generations, selfing by 5 generations to obtain selfing line 5812, and hybridizing between selfing line 5812 and selfing line H598.

Description

technical field [0001] The invention relates to a seed production method of Liyu No. 13 corn hybrid, belonging to the technical field of crop heterosis utilization. Background technique [0002] Maize is the earliest crop to utilize heterosis in the world, and the utilization of heterosis is an important means to increase the yield of maize on a large scale. The United States leads the world in corn research and production. Since the 1930s, corn hybrid breeding has been carried out. By 1956, the planting and production of corn hybrids was basically popularized in the United States. In 1987, the planting area of ​​corn hybrids in my country only accounted for 80% of the total area of ​​corn production. Corn is an important food crop, the pillar of animal husbandry development, and its position in industrial processing is becoming more and more prominent. In addition, it is also widely used in the pharmaceutical industry, so corn is recognized as th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04A01H5/00
Inventor 赵劲霖
Owner 赵劲霖
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