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Disaster reduction method for performing artificial supplementary pollination on crops by utilizing small and medium-sized aircraft

A technology of artificial assistance and assisted pollination, which is applied in the directions of botanical equipment and methods, application, and plant genetic improvement to achieve good yield, increase fertilization rate, and increase yield.

Inactive Publication Date: 2012-08-01
HUNAN HYBRID RICE RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method of disaster reduction using small and medium-sized aircraft for artificial assisted pollination of crops, so as to solve the problem of abnormal weather encountered by crops during the pollen development period and heading and flowering period. , poor flowering and fertilization, affecting yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Artificial assisted pollination of the conventional japonica rice variety Kongyu 131 was carried out in a commercial rice grain base in Northeast my country.

[0023] In mid-July, the pollen meiosis stage of Kongyu 131 encountered low temperature weather with an average daily temperature of about 16.5°C for 4 consecutive days. When heading and flowering in early August, it was observed that the anthers of Kongyu 131 were not cracking smoothly, and the flowering powder was not normal. The fertile pollen rate is lower than 70%. During the peak flowering period of the spikelets of Kongyu 131, the small and medium-sized aircraft "Yunwu" B-type agricultural aircraft was used as an auxiliary pollination tool to fly at a height of 5 to 8 meters above the panicle layer of Kongyu 131. , and the speed is 100-120 km / h, and artificially assisted pollination is carried out. The wind force generated by the flight of the "Yunwu" B-type agricultural aircraft and the natural wind caused...

Embodiment 2

[0027] Artificial assisted pollination of hybrid rice variety Liangyoupeijiu was carried out in Dongting Lake Commodity Grain Base of Hunan Province.

[0028] During the pollen meiosis period of Liangyoupeijiu in early August, the daily average temperature was around 30°C for 4 consecutive days. When heading and flowering in late August, Liangyoupeijiu showed poor anther dehiscence, abnormal flowering and loose pollen, and a fertile pollen rate. If it is lower than 60%, during the peak flowering period of Liangyoupeijiu flowering on that day, use a small and medium-sized aircraft Zhi-11MB1 helicopter as an auxiliary pollination tool to fly at a height of 3-5 meters above the panicle layer of Liangyoupeijiu at a speed of 110-130 km / h. Auxiliary pollination. The wind force generated by the Zhi-11MB1 helicopter plus the natural wind caused most of the anthers of Liangyoupeijiu to crack and loosen powder, forming a pollen fog. By flying back and forth, the wind generated by the ai...

Embodiment 3

[0032] Artificial assisted pollination of T-type hybrid wheat Zhengmai 9023A / Chuannong 19 was carried out in a wheat field in Henan Province.

[0033] The T-type hybrid wheat Zhengmai 9023A / Chuannong 19 has a poor recovery rate. In addition, the pollen meiosis period encountered low temperature and rain, and the daily average temperature was below 12°C for 3 consecutive days. A large number of anthers cracked abnormally and scattered powder when heading. Phenomenon: poor pollen development, many sterile pollen grains, poor anther dehiscence, and pollen fertility rate below 50%. At noon on the day of observation, when the spikelets of Zhengmai 9023A / Chuannong 19 peaked, the small and medium-sized aircraft "Yunwu" B-type agricultural aircraft was used as an auxiliary pollination tool, and the 5- Fly at a height of 8 meters at a speed of 100-120 km / h for artificial assisted pollination. The wind force generated by the "Yunwu" B-type agricultural aircraft and the natural wind cau...

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Abstract

The invention relates to a disaster reduction method for performing artificial supplementary pollination on crops by utilizing a small and medium-sized aircraft. The disaster reduction method comprises the following steps of: observing the flowering and pollen dispersal situation during the earring and flowering period of the crops, selecting the time period which is suitable for pollination fertilization of the crops when the crops encounter abnormal weather during the pollen development period and the earring and flowering period and the flowering and pollen dispersal situation is poorer, utilizing the small and medium-sized aircraft as a supplementary pollination tool, performing the supplementary pollination on the crops by wind power generated by flight of the aircraft, and enabling wind generated by the aircraft to cover a planting region of the crops subject to a disaster; selecting the time period for performing the supplementary pollination, wherein the time period does not exceed 7 days after flowering of non-fertilized glumous flowers; and canceling the artificial supplementary pollination if the local natural wind power at the current time can enable anther to perform cracking and the pollen dispersal normally, wherein if the artificial supplementary pollination time is in the local flowering peak period, the artificial supplementary pollination is performed once to twice. By utilizing the disaster reduction method disclosed by the invention, the problems that the flowering and the sterilization become poorer and the yield is affected when the crops encounter the abnormal weather during the pollen development period and the earring and flowering period can be effectively solved.

Description

technical field [0001] The present invention relates to a disaster reduction method for artificially assisted pollination of crops by using a small and medium-sized aircraft, in particular to a method for improving the pollination and setting rate of crops under the influence of disaster weather by using a small and medium-sized aircraft to catch pollination, so as to reduce the negative impact of disaster weather on crop yield. method of influence. Background technique [0002] As a non-human controllable factor, weather has always been an important and irreversible factor affecting crop yield. Especially for fruiting crops, encountering abnormal weather during the meiosis stage of pollen development and the heading and flowering stage can have a devastating impact on yield. Due to the wide range of general abnormal weather changes, even nationwide, it can cause a major impact on the country's entire grain production, seriously threatening national food security and econo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 李新奇邝翡婷杨益善李建武
Owner HUNAN HYBRID RICE RES CENT
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