Paddy rice hybridizing method

Abstract

The present invention discloses a submerged rice hybridization method. It includes the steps of emasculation, pollination and returning into field. Said invention adopts CO2 gas to treat rice ear, and utilizes vacuum pump to such and remove pesticide, and makes them be organically combined together, so that it can raise technical content of submerged rice hybridization method, reduce its hybridization work difficulty and raise its working effect.

Description

Technical field:

[0001] The invention relates to a rice hybridization method. Background technique:

[0002] Rice hybridization is one of the indispensable and important ways to create a source of variation in rice breeding, and plays an important role in breeding. At present, the commonly used method is to adopt the operating procedure of "detasseling with warm soup on the female ear - clipping glumes and emasculation - bagging and isolation - clipping glumes on the male parent to promote flowering - cross-pollination". Among them, the detasseling technology in warm soup is relatively high, and if there is a slight negligence, either the detasseling effect will not be achieved, or the entire tassels will be killed. However, glume clipping and emasculation will take a lot of work and take a lot of time, which will affect the speed of hybridization and the number of combinations. , The pollination link is also relatively troublesome. If some rice breeding materials encounter...

Examples

Embodiment Construction

[0012] A rice hybridization method, comprising the following steps:

[0013] ①Detasselling: On the afternoon of the day before hybridization, take the female plant that has just entered the full flowering stage back to the room with roots and soil, pruning, leaving the ears of rice ready for hybridization, removing the flowered spikelets, and covering them with plastic Bag and tie the mouth to moisturize, and immerse the plant roots in water. The next day, before the mother body blooms (8-9 in the morning, if there are flowering flowers on the female parent, remove the flowering flowers first), and put them on the plastic. Fill the bag with carbon dioxide gas, so that the carbon dioxide content in the bag is 5% to 30%. After about 10 minutes, when you see a large number of spikelets blooming on the ears of rice in the plastic bag, take out the ears of rice one by one, and immediately use a vacuum pump powder suction device to absorb them. Make up the anthers that have opened, ...

Technical field:

[0001] The invention relates to a rice hybridization method. Background technique:

[0002] Rice hybridization is one of the indispensable and important ways to create a source of variation in rice breeding, and plays an important role in breeding. At present, the commonly used method is to adopt the operating procedure of "detasseling with warm soup on the female ear - clipping glumes and emasculation - bagging and isolation - clipping glumes on the male parent to promote flowering - cross-pollination". Among them, the detasseling technology in warm soup is relatively high, and if there is a slight negligence, either the detasseling effect will not be achieved, or the entire tassels will be killed. However, glume clipping and emasculation will take a lot of work and take a lot of time, which will affect the speed of hybridization and the number of combinations. , The pollination link is also relatively troublesome. If some rice breeding materials encounter...

Examples

Embodiment Construction

[0012] A rice hybridization method, comprising the following steps:

[0013] ①Detasselling: On the afternoon of the day before hybridization, take the female plant that has just entered the full flowering stage back to the room with roots and soil, pruning, leaving the ears of rice ready for hybridization, removing the flowered spikelets, and covering them with plastic Bag and tie the mouth to moisturize, and immerse the plant roots in water. The next day, before the mother body blooms (8-9 in the morning, if there are flowering flowers on the female parent, remove the flowering flowers first), and put them on the plastic. Fill the bag with carbon dioxide gas, so that the carbon dioxide content in the bag is 5% to 30%. After about 10 minutes, when you see a large number of spikelets blooming on the ears of rice in the plastic bag, take out the ears of rice one by one, and immediately use a vacuum pump powder suction device to absorb them. Make up the anthers that have opened, ...