Creation method of giant flower pop corn

Abstract

The invention relates to a creation method of giant flower pop corn. The method comprises the following steps of (1) selecting seeds and accelerating germination, namely selecting pop corn selfing line seeds with the large grain size, the large flower size and the high expansion coefficient, and accelerating germination for the first time; (2) performing doubling treatment, namely enabling a chromosome doubling treatment agent to be any one of amiprophos-methyl, trifluralin and colchicine of herbicide; (3) performing breeding; (4) performing phenotype screening and fructification identification; and (5) performing combination and preparation, namely, adopting doubled selfing line seeds as parents, and performing hybridization and matching to obtain a high-yield and high-expansion-coefficient pop corn hybrid. According to the method, a conventional corn chromosome doubling technology is used for reference, large-grain large-flower pop corn is created through a ploidy breeding approach of autotetraploid, large-flower and high-expansion-coefficient germplasm is used as a test material, namely, on the basis of large flowers, the size of the corn flowers is greatly increased again, a giant flower pop corn new variety is bred, and the yield can be increased.

Description

technical field [0001] The invention belongs to the technical field of plant breeding, and in particular relates to a method for producing popcorn with giant flowers. Background technique [0002] Expansion performance ranks first in the quality requirements of popping corn. The indicators to measure the expansion performance mainly include explosion rate, expansion multiple, expansion coefficient and single flower volume, etc. Some of the indicators are greatly affected by environmental factors, and some mainly depend on internal factors. Among the four indicators, the expansion coefficient is the core indicator, which is affected by the internal chemical and physical factors of the endosperm. The expansion coefficient is expressed by the ratio of the volume of each corn kernel before and after popping (the volume of corn kernels / the volume of corn kernels), so as to illustrate the degree of expansion of corn kernels. [0003] Larger popcorn is a constant quest not only f...

AI Technical Summary

Problems solved by technology

[0014]Aiming at the lack of large flower resources in large flower breeding of popcorn, slow genetic gain of expansion coefficient, long breeding cycle, poor effect and high cost, this paper The invention proposes a method for creating giant flower popcorn, referring to conventional corn chromosome doubling technology, and creating large grain and large flower popcorn through the ploidy breeding approach of autotetraploid, using germplasm with large flower and high expansion coefficient as the test material, That is, on the basis of large flowers, the volume of corn flowers is increased again and greatly, and a new variety of popcorn with giant flowers is bred, which can increase yield and reduce the rate of dregs