Method of artificial hybridizing and pollinating lotus exempting from male

Abstract

The invention provides a water lily cross-pollination method free from stasis, which is characterized in that: the artificial cross-pollination method is as follows: ① select the male and female water lilies with excellent characters; ② use a bagging cover 1-2 days before the hybrid parents bloom live in flower buds for isolation; ③ when the female parent flowers open on the first day, pick the stamens of the male parent flowers that have been opened in the bag for 2 days, temporarily remove the bagging of the female parent flowers, and pick the male parent flower stamens 6 -8 pieces are put into the honey liquid in the stigma plate of the female parent flower, stirred slightly to make the pollen disperse into the honey liquid, then put back into the isolation bag, and the pollination procedure is completed; ④The female parent flower opens on the 2nd or 3rd day When the bagging is removed, the flowers bloom in a natural state, and then enter the water to develop, the hybridization process is completed, and the seeds are collected when the fruit is ripe. The emasculation procedure is avoided, the operation is simple, the flowers are not damaged, time and effort are saved, and the success rate of breeding is high.

Description

technical field [0001] The invention belongs to plant hybrid breeding technology, in particular to a water lily method for male-free artificial cross-pollination. Background technique [0002] In the existing water lily cross-breeding process, in order to ensure pure hybridization, the flowers of the female parent must be artificially detasseled to prevent self-breeding. The artificial hybridization of water lilies still uses the traditional artificial detasseling method at present, that is, the sepals and petals are manually peeled off, and the stamens are pulled out with tweezers a few days before the female parent blooms. Moreover, in order to prevent contamination of the stigma during this operation, the operator's hands must be wiped and disinfected with alcohol, and all utensils must be sterilized at high temperature. The water lily grows in the water, and the operator has to stand in the water and bend down to operate when completing the detasseling process, which ta...

AI Technical Summary

Problems solved by technology

Water lilies grow in water, and the operator has to stand in the water and bend over to operate during the detasseling process, which is laborious and inefficient

In addition, because the water lily has many petals, and the petals are tightly interlocked, when the petals are peeled off and the stamens are removed, the natural structure of the flower will inevitably be damaged, and the internal physiological and biochemical processes will be affected, and the fertilization process and subsequent development will be changed. The developmental conditions of fertilized eggs, the effect and success rate of hybridization are very low

In 1927, the famous British plant breeder Amos Perry pollinated 159 hybrid combinations, but only one combination got fruit, and the success rate was only 0.63%.