Cultivation method of wheat high-preharvest-sprouting-resistance material

Abstract

The invention discloses a cultivation method of a wheat preharvest-sprouting-resistance material. The cultivation method comprises the steps of in the first ten-day period and the middle ten-day period of October, culturing wheat seeds for 15 days with a special culture solution prepared from wild oat DNA, and when two leaves and 3-5 roots grow on each seedling, transplanting the seedlings as 0-generation seedlings to a field; In June of the second year, completely harvesting 0-generation seeds, and dibbling all single seeds in early October to form the first generation; harvesting and bundling first-generation plants in the next year; putting the bundled first-generation plants into a dark room, spraying water to wet ears thoroughly, performing covering with a plastic film to preserve moisture, accelerating germination for 15 days, performing baking, performing drying in the sun, performing threshing, floating the seeds with water, eliminating the germinated seeds floating on the water, reserving the non-germinated seeds sinking to the water bottom, and performing quick drying in the sun for second-generation seeding; performing harvesting and threshing at the seventh generation, performing sowing no less than 10,000 plants in single hole and single grain in the field in the middle ten-day period of June, and performing simultaneous sowing contrast; always keeping soil moist after sowing; only reserving and numbering the seedlings which emerge later than the control seedlings, recording the seedling emergence date, transplanting the seedlings into nutrition pots when 3-4 leaves exist, in a semi-shade shed, spraying 0.5% paclobutrazol, performing root irrigation and performing oversummering; and performing transplanting in the first ten-day period of October, and performing pre-harvest-sprouting-resistance identification in the next year. High pre-harvest-sprouting-resistance materials can be selected.

Description

technical field [0001] The invention relates to the technical field of wheat breeding, in particular to a method for creating wheat high ear germination resistance materials. Background technique [0002] Germination of wheat grains on the ear (ear germination) caused by continuous rainy weather during the mature period of winter wheat is a worldwide climate disaster, and it is a technical problem that needs to be solved urgently in the field of wheat breeding. According to the statistics of the Food and Agriculture Organization of the United Nations, the annual loss caused by ear germination accounts for 20% of the total wheat production in the world, which is equivalent to the total annual wheat production in my country. There are hidden dangers of ear germination in 85% of the wheat producing areas in my country. Large-scale wheat ear germination has occurred many times in the Huanghuai wheat region and the middle and lower reaches of the Yangtze River wheat region in my...

AI Technical Summary

Problems solved by technology

However, these materials are artificially cloned engineered genes, and the safety of this gene to the biological environment is still being evaluated, especially in the current s

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