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Method for improving Vaccinium spp. hybridization emasculation efficiency

A blueberry, high-efficiency technology, applied in the field of artificial detasseling of blueberry hybrid breeding, can solve the problems of low detasseling efficiency, achieve the effect of improving detasseling efficiency, improving detasseling efficiency, and easy operation

Active Publication Date: 2020-05-15
INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] One, technical problem: aiming at the low efficiency of traditional detasseling and the deficiencies in the prior art, the purpose of the present invention is to provide a method for hybrid breeding of fast detasseling of blueberries, which is simple to operate, labor-saving and time-saving, and can significantly improve the efficiency of detasseling. pollination efficiency

Method used

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  • Method for improving Vaccinium spp. hybridization emasculation efficiency
  • Method for improving Vaccinium spp. hybridization emasculation efficiency
  • Method for improving Vaccinium spp. hybridization emasculation efficiency

Examples

Experimental program
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Effect test

Embodiment example 1

[0021] Select a robust female parent plant of Sunshine Blue, water enough water 2 days before emasculation, so that the soil water content reaches 70% of the water holding capacity in the field; at 8:00 in the morning on the day of emasculation, first remove the flowers that have bloomed and have not fully developed, 1 day -The flowers that open after 2d and the blueberry buds that need to open after 4d-5d, keep the large bud stage flowers that open after 3d; adopt the traditional detasseling method (remove the petals first, then remove the breast pusher) and "inverted T" ring Cutting method emasculation, each method chooses 20 large bud period flowers, repeats 3 times, and timed with a stopwatch, finally counts the average emasculation time and the emasculation speed of each flower.

[0022] Table 1 Comparison of the effects of two methods of detasseling

[0023] Detasseling method Number of buds (flowers) Elapsed time (S) Detasseling speed (S / flower) Remark...

Embodiment example 2

[0026] The method of this case is the same as the implementation case 1, but each method selects 100-120 flowers at the big bud stage and repeats them 3 times. Statistical fruit set rate.

[0027] Depend on figure 1 It can be seen that the effective pistil preservation rate of the traditional detasseling method is about 70%, and the fruit setting rate is 64.4%, while the effective pistil preservation rate of the "inverted T" circumcision method is about 96.9%, and the fruit setting rate is 65.5%. There was no significant difference in fruit set rate. However, the effective pistil preservation rate of "inverted T" circumcision method increased by 38.43%. This case shows that the "inverted T" ring cutting method greatly improves the effective pistil preservation rate without affecting the fruit setting rate of blueberry hybrids.

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Abstract

The invention discloses a manual emasculation method for Vaccinium spp. crossbreeding. The method comprises the following steps of: carrying out preprocessing before emasculation, carrying out flowerthinning, carrying out emasculation, and carrying out bagging. Compared with the prior art, the method disclosed by the invention is convenient to operate and saves labor and time, emasculation efficiency and an effective pistil preserving rate can be greatly improved, the problem of hybridization failure caused by that a traditional emasculation method cannot thoroughly carry out Vaccinium spp. emasculation and pistils are damaged can be solved, and an effective emasculation method is provided for the crossbreeding of Vaccinium spp. and other plants.

Description

technical field [0001] The invention relates to a method for improving the efficiency of blueberry cross-breeding and detasseling, in particular to a method for artificially detasseling blueberry cross-breeding. Background technique [0002] Blueberry (Vaccinium spp.), also known as lingonberry and blueberry, is a perennial shrub of the genus Vaccinium in the family Ericaceae. Blueberry fruit is rich in nutrition, unique in flavor, and has a strong antioxidant function. It has special effects on preventing human cell aging, senile diseases, heart disease, cataracts, cancer, and memory loss (Mallik AU, 2017). Because the blueberry fruit is sweet and sour, delicious and has health care functions, its popularity in the market is increasing day by day. [0003] The research and introduction of blueberries in my country began in the early 1980s, and more than 200 varieties have been introduced so far. In 2016, China's total blueberry production (processing + fresh food) has exc...

Claims

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Application Information

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IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 王小敏张春红吴文龙闾连飞
Owner INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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