High-dilution zasiokaurin solid mixture and manufacturing method and application thereof

Abstract

The invention discloses a high-dilution zasiokaurin solid mixture and a manufacturing method and application thereof. On the basis that the weight ratio is 1:(80-240), naturally-collected pure pollenis sufficiently diluted, the volume of the pollen capable of being used for hand-pollination is enlarged, the requirement for pollination of large-area corn seed production is met while the crop yieldis not affected, the utilization rate of crop pollen is remarkably increased, and the labor and planting cost is remarkably lowered. Particularly, the practical and effective solution is provided for solving the problem that pollen quantity scarcity caused by problems such as climate and diseases during corn seed production, and lower-cost corn seed production can be achieved through the high-dilution zasiokaurin solid mixture.

Description

technical field [0001] The invention relates to a pollen solid mixture, which belongs to the field of plant cross-pollination, in particular to a highly diluted corn pollen solid mixture, a preparation method and application thereof. Background technique [0002] Corn (Zea mays L.) is an important food crop and one of the important strategic reserves in my country. With the increasing emphasis of the national policy on the corn seed industry, increasing the amount and area of ​​corn seed production is one of the important development directions for my country's food security. At present, the traditional corn seed production method has been popularized, the seed production area is expanding year by year, and the expected seed yield is also increasing year by year. [0003] Maize seed production requires male stamen pollen to fertilize female pistil. In theory, one pollen can fertilize one pistil and form a corn seed, and one male parent stamen can produce hundreds of million...

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Problems solved by technology

[0004] At present, there is no special pollen mixture technology in the field of corn seed production. The approximate technology that can be searched has been applied. There is a Chinese invention patent application publication, the announcement number is 104719130A, a method of using talcum powder to increase the yield of hybrid corn seed production, the invention patent Announced the method that utilizes talcum powder to dilute and apply corn male parent pollen, but there are certain problems in this method in actual use:

[0005] (1) The pollen capacity expansion of the medium is small, only diluting 20% ​​to 60% by weight and about 4 to 10 times the volume ratio, which is not enough to cope with the scarcity of pollen under unfavorable conditions such as drought conditions;

[0006] (2) The density of talcum powder is higher than that of pollen. Therefore, in the actual mixing process, the mixing will not be uniform. It is difficult to fully mix during the process, and the result is uneven pollination of the female parent, resulting in low yield;

It can be seen that using talcum powder as the pollen dilution medium for pollination spraying has the possibility of being inhaled by the operator, posing a safety hazard

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