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Controlled pollination method for theaceae plants

A technology for controlling pollination and camellia, applied in the field of agriculture, can solve the problems of reducing hybrid fruit setting rate, increasing the workload of pollen preparation, cumbersome steps, etc., and achieve the effects of increasing hybrid pollination speed, streamlining and controlling pollination steps, and reducing costs

Inactive Publication Date: 2013-09-18
RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the long-term breeding work, the bagging control pollination technology has shown some disadvantages, which has reduced the efficiency of the hybrid breeding of Camellia: 1. Using a brush to dip pollen to smear the stigma, a large amount of pollen of purpose is spilled during the operation, which increases the cost of pollen preparation Work load; 2. In order to ensure that self-pollinated offspring are not produced, the stamens must be removed thoroughly; 3. Except for the pollinated flowers, the rest of the flower buds, flowers and young fruits on the bagged branches must be completely erased, otherwise the hybrid fruit Unrecognizable; 4. It is not easy to control pollination flower bagging and pollination bag fixing. Young fruit needs to be picked after fruit setting. The steps are cumbersome and time-consuming; The branches of the bag are easily broken, thereby reducing the hybrid fruit setting rate; 6, the pollination bag is very eye-catching, and is easily damaged by humans and animals; 7, the use of the pollination bag also causes the cost of hybrid breeding to control pollination to increase

Method used

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  • Controlled pollination method for theaceae plants

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Effect test

Embodiment 1

[0017] Adopt the controlled pollination method of the present invention, take common camellia oleifera Changlin No. 53 as the female parent, and common camellia oleifera Changlin No. 4 as the male parent, carry out controlled pollination intraspecific hybridization in the blooming season of common camellia oleifera Changlin 53 in late October , the operation steps are as follows:

[0018] 1. In late October, select the vigorously growing common Camellia oleifera Changlin No. 53 plant as the mother plant, select the budding flowers, open the petals, and remove all the stamens with scissors.

[0019] 2. Dip a small amount of common Camellia oleifera No. 4 pollen with an eraser, and apply it on the stigma until the stigma is slightly yellow.

[0020] 3. Take a 1cm×2cm medical paper adhesive plaster and fold it in half to stick it to the stigma completely.

[0021] 4. Erase all flower buds, flower buds and young fruit near the flowers that control pollination.

[0022] 5. Hang t...

Embodiment 2

[0025] The difference from Example 1 is that the control pollination combination is interspecific hybridization, and the size of the medical adhesive tape is different. With Jinpan Litchi (Camellia) as the female parent and Nanshan Camellia as the male parent, interspecific hybridization is carried out in mid-March when the safflower camellia is in full bloom, and pollination is controlled. The medical tape is 1cm×2.5cm, and the pollination is controlled to obtain the fruit of the hybrid fruit The rate reached 66.7%.

[0026] The present invention can completely block exogenous pollen by sticking the stigma with medical adhesive tape, which is easy to operate and low in material cost, and greatly reduces the probability of being damaged by external forces such as wind, rain, humans and animals in the later stage of pollination control. When the fruit is ripe, the adhesive tape remains on the top of the fruit On the shrunken stigma, the hybrid fruit is easy to identify. Theref...

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Abstract

The invention relates to a controlled pollination method for theaceae plants. The method comprises the following steps: in the blossom season of theaceae plants, selecting flowers in bud; pushing aside petals; quickly removing all stamens; coating pollinated pollen to the column; folding rubberized fabric and completely wrapping the column in controlled pollination to realize controlled pollination of theaceae plants; and finally, marking and recording. The method provided by the invention has the beneficial effects that paper medical rubberized fabric is used for replacing a pollination bag to isolate outer pollen, so that the method is suitable for controlled pollination of theaceae plants, and further controlled pollination of other plants. The steps of controlled pollination are simplified, the cross pollination speed is increased, the ratio of obtaining hybrid fruits by controlled pollination is improved, and the crossbreeding cost is lowered.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method for controlling pollination of camellia plants. Background technique [0002] Hybrid breeding is the most effective breeding technique in traditional genetic improvement, and the root of this technique is to control pollination. Controlled pollination technology can make the traits of different parents aggregated and expressed in their hybrid offspring, so as to breed new individuals with multiple excellent traits, so it has been widely used in a large number of plant breeding. [0003] There have been decades of history in the hybrid breeding of Camellia plants using controlled pollination technology, and a large number of hybrid germplasm and breeding materials have been obtained. The traditional controlled pollination of Camellia oleifera is the same as other hybrid pollination techniques for a large number of plants. The method of bagging is used to effectivel...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 林萍姚小华王开良曹永庆龙伟
Owner RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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