A Method for Measuring, Matching and Picking Ears of a New Hybrid Rice Combination

A hybrid rice and new combination technology, applied in the field of hybrid rice, can solve the problems of complex operation procedures, high labor intensity, and low efficiency of grouping, and achieve the effects of overcoming technical defects, convenient water control, and improving accuracy and efficiency

Active Publication Date: 2021-04-30
CHONGQING ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the prior art are: the current technical solution has complex operation procedures, high labor intensity, low matching efficiency, and high error rate.

Method used

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  • A Method for Measuring, Matching and Picking Ears of a New Hybrid Rice Combination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Yu 802A was tested and mated in Chongqing Zhengji, the CMS was sown 4 / 1, the Yuyou series restorer line was sown 3 / 15, the CMS was 7 / 1 earing, and Yuyou was selected in the morning of 7 / 3 There are 72 series of recovery lines, which are registered on the paper in order, with 4 numbers in a row, a total of 18 rows. Write the hybridization bag, mark 802A / 1, ..., mark in sequence according to the number of the restorer line, and mark the pollination period 7 / 4 on the top of the hybridization bag. In the afternoon of 7 / 3 or in the morning of 7 / 4, the ears, glumes, and nests of 802A are selected bag, and take ears twice, each time taking 36 ears. According to the order of the selected restorer lines, the ears were picked in turn by the hand clip method. The paddy field was soaked with water to wet the whole ears, and the excess water was shaken off before the ears were thrown. The last ear number was quickly put into the hybridization bag in reverse order, and sto...

Embodiment 2

[0029] Example 2: Yu 805A was tested and mated in Chongqing Zhengji, 4 / 1 of the CMS was sown, 3 / 15 of the Yuyou series restorer line was sown, 7 / 3 of the CMS was first eared, and Yuyou was selected for earing in the morning of 7 / 5 There are 64 series of recovery systems, which are registered on the paper in order, with 4 numbers in a row, a total of 16 rows. Write the hybridization bag, mark 805A / 3, ..., mark in sequence according to the number of the restorer line, and mark the pollination period 7 / 6 on the top of the hybridization bag. In the afternoon of 7 / 5 or in the morning of 7 / 6, ear selection, glume clipping, and nesting of 805A bag, and take ears twice, each time taking 32 ears. According to the order of the selected restorer lines, pick the ears in sequence, soak the rice field with water to wet the whole ears, shake off the excess water before throwing the ears, quickly put them into the hybridization bag in reverse order from the last ear number, and let it stand ...

Embodiment 3

[0030] Example 3: Hainan Autumn Propagation tested and mated Yu 92S, sowed 9 / 1 of the CMS, 8 / 28 of the Yuyou series restorer line, 11 / 15 earing of the CMS, and selected the heading Yuyou in the afternoon of 11 / 17 There are 80 series of recovery systems, which are registered on the paper in order, with 4 numbers in a row, a total of 20 rows. Write the hybridization bag, mark 92S / 1, ..., mark in turn according to the number of the restorer line, and mark the pollination period 11 / 18 on the top of the hybridization bag. Select ears for 92S in the afternoon or morning of 11 / 18, and cut off the flowering part , Bagging, before 8:30 in the morning, spray chemicals on the bagged rice ears to promote flowering without pruning glumes, and take ears in 2 times, 40 ears each time. According to the order of the selected restorer lines, pick the ears in sequence, soak the rice field with water to wet the whole ears, shake off the excess water before throwing the ears, quickly put them into...

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Abstract

The invention belongs to the technical field of hybrid rice, and discloses a method for measuring, mating and ear picking of a new combination of hybrid rice. The treated sterile lines are bagged, and the numbers of the sterile lines and the restorer lines are marked on the hybrid bags with pencils, and Mark the date of pollination on the top of the hybridization bag; according to the order of the restorer lines marked on the hybridization bag, the spikes are taken in sequence according to the serial number; the spikes of the male parent rice that have been taken are soaked in field water and wetted, and 30 individual plant numbers are taken each time. The invention improves the efficiency of measuring and matching, which can reach 60-90 per day; the invention improves the pollination accuracy rate, which can reach 100%; The technology of picking ear by hand was proposed, which greatly improved the efficiency and accuracy of measuring and matching.

Description

technical field [0001] The invention belongs to the technical field of hybrid rice, and in particular relates to a method for measuring, mating and ear picking of a new combination of hybrid rice. Background technique [0002] The testing and mating of new hybrid rice combinations is a key link in hybrid rice breeding. A large number of new hybrid rice combinations are tested and matched by parental sterile lines and restorer lines, and target combinations are screened from them. Due to restrictive factors such as short flowering period, the testing and matching time of the new combination is short, the workload is heavy, and the accuracy is required to be high. Present technical scheme mainly is to utilize page turning to get fringe, also has straw hat to get fringe etc. in addition. These two methods generally require 2 people to cooperate with picking ears. The page-turning method also needs to be marked page by page, and water control is inconvenient. Each line number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01G22/22
CPCA01H1/02
Inventor 张现伟李经勇唐永群李超明甘兴友肖人鹏文明杨才彬
Owner CHONGQING ACAD OF AGRI SCI
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