Disclosure of Invention
In order to cultivate the new variety of the full-petaline water lily, the inventor finally discovers that the nine-product water lily is used as a female parent and the blue star water lily is used as a male parent through many years of hybridization breeding and hybridization combination tests, so that the new variety of the full-petaline water lily can be stably created, and the test has operability and repeatability and is worthy of popularization and application.
The technical scheme of the invention is as follows:
a hybridization breeding method of full-petal wide-tropical water lily uses Jiupin lotus as female parent and blue star water lily as male parent to carry out hybridization to obtain a new hybridization variety.
The Jiupin lotus has nine major colors of gold, yellow, purple, blue, red, tea, green, red, white and the like, and the preferred embodiment of the invention is the Jiupin lotus.
The preferable scheme is as follows: a hybridization breeding method of full-petal wide-tropical water lily comprises the following steps:
A. before flowers of the male parent and the female parent are opened, bagging and isolation are carried out;
B. taking stigma fluid in the morning of the flowering day of the female parent;
C. mixing pollen of male parent and stigma fluid of female parent, and pollinating after mixing uniformly; sucking the female parent pistil stigma liquid by a suction pipe during pollination, adding pollination liquid immediately, and continuously bagging and isolating after pollination is finished;
D. after pollination, the fruits are harvested to obtain seeds, and the seeds are preserved for standby.
The preferable scheme is as follows: the mixing mass ratio of the pollen to the female parent stigma liquid is 1:3-5.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a hybridization breeding method of full-petal wide-tropical water lily, which breeds a new full-petal wide-tropical water lily variety, which has obvious differences with parental parents in flower color, flower diameter, re-petal property, leaf diameter and the like, has higher ornamental value, is very suitable for being used as cut flowers, can fill the blank of the new full-petal water lily variety in China, has good economic value, and is worthy of popularization and application.
Detailed Description
The present invention will be further described with reference to specific examples and drawings for a better understanding of the technical contents of the present invention to those skilled in the art.
Experimental example hybridization breeding of full-petal wide-tropical water lily
The specific breeding process is as follows:
(1) Determination of breeding goals
The breeding aim is to create a new variety of the full-petal cut flower type wide-tropical hybrid water lily.
(2) Selection of parents
And (3) female parent: purple nine-product lotus
Name: purple nine-grade product
The school name: n. 'hybrid'
The characteristics are as follows: flower blue-purple and oval-shaped green leaves.
Habit: light preference, heat preference, aversion to cold.
Reproduction: and (5) seed reproduction.
Belongs to wide-band water lily, has strong hardening capacity and good cut flower water lily female parent.
The male parent is provided with drug-extension water lily, blue bird water lily, blue star water lily, small flower water lily, mineata water lily and the like, and the characteristics of the male parent water lily are as follows:
A. indian drug-prolonging water lily
The school name: n. nochali
The characteristics are as follows: blue-purple flowers, emergent aquatic products, aromatic, oval leaves and green.
Habit: light preference and heat preference.
Reproduction: and (5) seed reproduction.
B. Nymphaea caerulea (L.) Roxb
The school name: n. color
The characteristics are as follows: small variety, bluish violet, nearly circular green leaf.
Habit: light preference, heat preference, aversion to cold.
Reproduction: seed ball breeding.
C. Blue bird water lily
The school name: n.edorado
Characteristics: the characteristics are as follows: yellow flowers, large, green leaves, oval, and even small spots.
Habit: light preference, heat preference, aversion to cold.
Reproduction: seed ball breeding.
D. Mineata water lily
The school name: n.minuta
The characteristics are as follows: microminiature variety, strong setting ability, green and oval leaves and white pollen.
Habit: light preference, heat preference and cold resistance.
Reproduction: and (5) seed reproduction.
E. Flos Nymphaeae
The school name: n.micrantha
The characteristics are as follows: blue-violet, white spots, emergent aquatic products, radial, oval and green leaves.
Habit: preference for heat and preference for strong light.
Reproduction: and (5) fetal growth and reproduction.
F. Egypt blue water lily
The school name: n. caemulea Savigny
The characteristics are as follows: flower blue, star-shaped, strong in setting ability, green on the front of the leaf, nearly circular, and purple black spots on the back. Habit: light preference, heat preference, aversion to cold.
Reproduction: and (5) seed reproduction.
(3) Hybridization breeding process
A. The day before flowers of the male parent and the female parent are opened, bagging and isolation are carried out;
B. the stigma fluid is taken in the morning of the female parent on the day of flowering.
C. And (3) taking pollen of the male parent which is opened the next day, mixing the pollen and the stigma liquid of the female parent (the mass ratio is 1:5), and pollinating after uniformly mixing. When pollinating, sucking the female parent pistil stigma liquid by using a suction pipe, adding the pollinating liquid immediately, and continuously bagging and isolating after the pollinating is finished, so that 100 flowers are pollinated together.
D. After pollination for about 30 days, the fruits are harvested to obtain seeds, and the seeds are stored in water for later use.
E. And sowing the harvested seeds at a proper temperature and in a proper season to obtain cross subgenera hybrid offspring plants. And (5) carrying out character investigation after the plants bloom. The results were as follows:
TABLE 1
The result shows that only the offspring hybridized by using the Jiupin lotus as a female parent and the blue star lotus as a male parent can generate the wide tropical lotus with full petal. Repeated experiments prove that the proportion of the full-petal variety obtained by cross breeding each time reaches more than 60 percent.
The plants of the full-petal variety are reserved, the plant can not be bred, and the multi-generation asexual propagation can be carried out.
Example 1 Cross breeding method of full-petal wide-tropical water lily
Takes nine-product lotus as female parent and blue star lotus as male parent
A. The day before flowers of the male parent and the female parent are opened, bagging and isolation are carried out;
B. taking stigma fluid in the morning of the flowering day of the female parent;
C. and (3) taking pollen of the male parent which is opened the next day, mixing the pollen and the stigma liquid of the female parent (the mass ratio is 1:3), and pollinating after uniformly mixing. And sucking the female parent pistil stigma liquid by using a suction pipe during pollination, adding the pollination liquid immediately, and continuously bagging and isolating after pollination is finished.
D. After pollination for about 30 days, the fruits are harvested to obtain seeds, and the seeds are stored in water for later use.
E. And sowing the harvested seeds at a proper temperature and in a proper season to obtain a new full-petal wide-tropical water lily variety. And (5) carrying out character investigation after the plants bloom.
TABLE 2
Example 2 Cross breeding method of full-petal wide-tropical water lily
Takes blue nine-product lotus as female parent and blue star lotus as male parent
A. The day before flowers of the male parent and the female parent are opened, bagging and isolation are carried out;
B. taking stigma fluid in the morning of the flowering day of the female parent;
C. and (3) taking pollen of the male parent which is opened the next day, mixing the pollen and the stigma liquid of the female parent (the mass ratio is 1:3), and pollinating after uniformly mixing. And sucking the female parent pistil stigma liquid by using a suction pipe during pollination, adding the pollination liquid immediately, and continuously bagging and isolating after pollination is finished.
D. After pollination for about 30 days, the fruits are harvested to obtain seeds, and the seeds are stored in water for later use.
E. The seeds which are harvested by sowing at proper temperature and season can obtain a new variety of the wide-leaf tropical water lily. And (5) carrying out character investigation after the plants bloom.
In other embodiments of the invention, other line of septemloba may also be selected as the female parent.
The above embodiments are only examples of the present invention, and the present invention is not limited thereto, but any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.