New variety breeding method for high-yield Valencia peanuts

A new variety and grain type technology, applied in the direction of botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of variety degradation, low yield, and nutritional quality decline, and achieve early maturity, high yield, and good quality Effect

Inactive Publication Date: 2015-08-05
JILIN ACAD OF AGRI SCI
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  • Application Information

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Problems solved by technology

However, after more than 30 years of planting, the variety has seriously degenerated, the yield is low, and the ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] In 2000, the Jilin Provincial Academy of Agricultural Sciences selected the multi-grain parent Si Li Hong as the female parent and the high-yield and low-temperature-resistant parent Xuxi No. 1 as the male parent to produce F1 generation. The F2 generation established and expanded the low-generation population, and the F3 generation began to select single plants simultaneously. Line, the selection target is 4 pods and more than 4 pods, the outer testa is red, the yield is high, the number of green leaves is more than 8 pieces per plant when harvested, the maturity period is within 120 days, and the cold tolerance is identified, and the temperature lasts for 3 The plants will not freeze to death when the temperature is below 10°C, and the seeds will not freeze. And through the F4 and F5 generation self-stable and continuous selection, in the F6 generation, the ideal traits are targeted for directional selection of strains, and then the self-stable generation is selected t...

Embodiment 2

[0009] In 2007, the multi-seed parent Si Li Hong was selected as the female parent and the high-yielding, early-maturing, low-temperature-resistant parent Jihua No. 1 was selected as the male parent to produce F1 generation. The F2 generation established and expanded the low-generation population, and the F3 generation began to simultaneously select a single line and select the target It is 4 or more pods, the outer testa is red, and the yield is high. When harvested, a single plant has more than 10 green leaves. The maturity period is within 110 days, and the cold tolerance is identified. The temperature lasts for 3 days at 10°C The following plants will not freeze to death, and the seeds will not freeze. And through the F4 and F5 generation self-stable and continuous selection, in the F6 generation, the ideal traits are targeted for directional selection of strains, and then the self-stable generation is selected to have 4 or more pods, red outer testa, and high yield. , sin...

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Abstract

A new variety breeding method for high-yield Valencia peanuts mainly includes selecting a Valencia parent P1 and a high-yield low-temperature-resistant parent P2 to be hybridized to generate an F1 generation, creating and enlarging a low generation group since an F2 generation, starting to synchronously select a single plant system since an F3 generation, selecting pods, high in yield and cold resistance, with four and more than more seeds with red seed coats, selecting strains directionally by taking the ideal characters as a goal at an F6 generation through selfing stabilization of F4 and F5 generations within 120 days of a mature period, performing selfing stabilization for another generation, selecting strains with complete and ideal characters, comparing yields of the strains, comparing the yields with strains with more than 10% of increase production to perform variety comparison experiments, and determining that varieties with more than 10% of increase production as high-yield Valencia peanut varieties, wherein the pods have more than eight leaves during harvesting. The new Valencia peanut varieties bred by the method are high in yield and short in mature period, can substitute for conventional peanuts with four red seeds to be planted in high-dimension regions, new variety replacement of production regions of the conventional peanuts with the four red seeds is accelerated and rural income is increased.

Description

technical field [0001] The invention relates to a method for breeding new varieties of high-yield and multi-grain peanuts, belonging to the technical field of peanut breeding. Background technique [0002] Peanut is the fourth largest crop after corn, rice, and soybean in Northeast China. Northeast China (Liaoning, Jilin, southern Heilongjiang, and eastern Inner Mongolia) is an area where my country's peanut planting area is expanding year by year, and it is also my country's planned peanut production industry belt. The development of peanut production in this area can greatly increase the total peanut production, promote the adjustment of agricultural industrial structure and increase farmers' production and income. Develop the peanut planting area in Northeast my country, increase peanut production, and lay a good foundation for the safety of edible oil in our country. Four red peanuts are one of the unique agricultural products in Northeast China. Four red peanuts are r...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 高华援周玉萍刘海龙何禹璇王绍伦杨富军王曙文孙晓苹
Owner JILIN ACAD OF AGRI SCI
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