Baidu Chinese _ Paternal: One of the parents involved in hybridization. In animals and plants, it is a male individual who participates in hybridization or an individual who produces male germ cells.
Baidu Chinese
How to distinguish between male and female parents in bisexual flower mating? Look at future generations? Cheese answer
The male flower has anther, the female flower has stigma, and there are two sperm in the anther of the male flower. The stigma of the female flower is equivalent to the human uterus, and the fertilized egg divides and differentiates under the stigma (ovary) to form seeds. ...
Cheese answer 202 1-06-09
Stigma _ HowNet Encyclopedia
In addition, the outcrossing of sterile lines is not only affected by the differences of outcrossing traits caused by their own genetic factors, but also by many factors such as the meeting of parents, the pollen density of fathers and the meteorological conditions of flowering [8]. It can be seen that in the process of hybrid rice seed production, the outcrossing of sterile lines ...
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3. Stigma liquid method is to spray the male stigma extract on the female stigma, which provides good conditions for the germination of male pollen. 4. Stigma removal and style removal, that is, the stigma or even style of the female parent is removed, and the pollen is directly given to the style or ovary. Even directly inject pollen with a syringe. ...
Baidu post bar
Description _ Patent Inquiry Network-August Melon
Collecting pollen when the male parent blooms; S3, castrating the female parent just before flowering; S4。 Female castration 1? After 2 days, the stigma can be pollinated with water drops; S5, pollinating by using a fruit tree cross pollination device; S6, harvesting the fruit after it is completely ripe; S7。 After harvesting, put the fruit directly into the refrigerator. ...
August melon 2022-0 1-02
ChristianRandPhillips _ Cheese Answer
ChristianRandPhillips' was bred by crossing wild peony as female parent and' Nianxiao' as male parent. The plant type is erect, the bipinnately compound leaves are large and long, the leaflet edges are deeply divided to fully divided, and the base is wedge-shaped. The buds are round and pointed, chrysanthemum-shaped, pink or orange when they first bloom, and the flowers are in full bloom. ...
Cheese answer 2022-04-27
How to manage and make good use of male parents in cotton hybrid seed production _ Popular Science China Network
1, sow early and promote early 1. 1. Sow early in time to prevent the shortage of parents in the early stage of seed production. Adjust the sowing date according to the characteristics of parents. The principle of adjustment is "better to wait for the male parent than the female parent". If parents meet in this flowering period, they can sow at the same time or father can sow earlier; If the male parent is more developed than the female parent ...
Science popularization China 2017-12-18
Ask a few biological questions _ cheese answer
1, which should be 4. Because codons are degenerate, that is to say, one amino acid corresponds to multiple codons. Therefore, the base pair sequence in the corresponding gene of the same amino acid, the base pair sequence in the corresponding messenger RNA and the sequence for transferring RNA into ribosomes are all. ...
Cheese answer 202 1-06-08
With the deepening of people's understanding of life activities, the ability of human beings to transform organisms has been continuously improved, and even new species that do not exist in the world can be created, such as vegetables and vegetables. ...
(2) When Chinese cabbage and Rachel are about to bloom, open the perianth, cut off the male berries of Chinese cabbage with small scissors, and then let the female stigma accept part of the pollen of Rachel's flowers, and then put on a paper bag (Rachel can also be used as the female parent and Chinese cabbage as the male parent). (3) harvesting hybrid seeds, and ...
Cheese answer 2022-02- 14
Analysis of distant hybridization breeding. ppt
***62 pages
(2) Selecting the male parent with slightly higher pollen osmotic pressure and the female parent with slightly lower stigma osmotic pressure, the osmotic pressure between pollen and stigma also affects the seed setting rate of hybridization. Generally, when the pollen osmotic pressure of the species elected as the male parent is slightly higher than that of the female parent, it will be more beneficial to the pollen tube. ...
Creative document 20 16- 12-02
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Article 1 1-20
How to choose the female parent and the male parent of Clivia
Answer: 1
Do you want the seeds of Clivia? None of them are needed. It is only necessary to observe the mucus secretion of the female stigma of Clivia after the female petals are opened for 2 days. ...
Sogou asked 20 18-08-23.
Ask the expert to teach Zhu Dinghong Baidu Post Bar.
Double petals are difficult to be female parents, but male parents can try not to pollinate, and only single petals can bear fruit. The elf has no pistil, so he can only dry the male pollen for one day and seal it and freeze it. There are single-petaled varieties that can be pollinated. The single petal is the female parent, and the double petal can be the male parent. ...
Baidu Post Bar 2022-03-22
Comments: 18
Fill in the blanks in biology _ Baidu knows
Answer: 4
I'm a little confused about whether watermelon or pumpkin fruit is developed from ovary wall without meiosis, so it's 48. I don't know if it's right or not. Generally, seedless watermelon is cultivated by treating diploid watermelon seedlings with colchicine to get tetraploid plants, and diploid plants as male parents, and then pollinating with diploid pollen to make the ovary develop and bear fruit, but the ovule does not develop into seeds, so seedless watermelon is produced. ...
Baidu Knows
Biological problems
Answer: 4
Monoecious refers to flowers with parents on the same plant. Flowers are divided into female flowers and male flowers, just as people divide men and women. Monogamy means that there are both female flowers and male flowers on the same plant, not on one flower.
Baidu Knows
Figure 1 is a schematic diagram of Mendel pea hybridization, please analyze it according to the figure. _ cheese answer.
The male parent is the plant that provides pollen, and the female parent is the plant that provides pistil stigma. (1) For the experimental parents, the male parent is the plant that provides pollen and the female parent is the plant that provides pistil stigma. The picture shows collecting pollen from white flowers and giving it to safflower plants, so white flowers are male parents and safflower is female parents. Two peas as parents must be homozygous. (2) artificial. ...
Cheese answer 2020- 10- 17
As shown in figure 1, Mendel pea hybridization schematic diagram. Please analyze according to the diagram: (1) Among the parents in this experiment, the father is a white flower plant and the mother is a red flower plant. The two peas used as parents in this experiment must be pure. (2) ...
The male parent is the plant that provides pollen, and the female parent is the plant that provides pistil stigma. Solution: (1) For the experimental parents, the male parent is the plant that provides pollen and the female parent is the plant that provides pistil stigma. The picture shows collecting pollen from white flowers and giving it to safflower plants, so white flowers are male parents and safflower is female parents. Two peas as parents must be homozygous. ...
Xia Qing education
Method for cross breeding of kidney bean
Comprises the following steps: simultaneously removing anthers and stigmas wrapped by male keel petals, and inserting the male keel petals into the stigmas of female parents from an open small mouth to complete pollination. 2. The hybrid breeding method of kidney bean according to claim 1. ...
X technology
A cross breeding method of common kidney bean (CN20 15 10454298.8) was patented in China.
Comprises the following steps: simultaneously removing anthers and stigma wrapped by male keel petals, and inserting the keel petals cut by the male into the stigma of the female parent through an open small mouth. The invention discloses a cross breeding method for common kidney beans, which relates to the field of cross breeding and comprises the following steps: simultaneously taking off anthers and stigmas wrapped by male keel petals, and inserting the keel petals cut by the male parent into the stigmas of the female parent from an open small mouth. The invention has the following beneficial effects: 1 ....
Zhang Qiao Scientific Research 2015-1-11
How to identify hybrid rice varieties from the appearance-agricultural materials-China anti-counterfeiting network
Hybrid rice seeds are regular in length and width. If there are obviously different shapes of seeds, it may be that the male parent or different varieties are mixed and the purity is poor. Bite the grain with your teeth, which is hard, neat in section and crisp in sound, so the seeds are dry and easy to preserve. If a bite is broken, the fracture is uneven and the noise is small, then the seed ...
China anti-counterfeiting network
How to choose the female parent and the male parent of Clivia
When observing the mucus secretion of female stigma, use a brush or cotton ball to dip the pollen of male stamens, and then dip the female stigma. The female petal of Clivia has just opened for 2 days. When it is observed that the female stigma secretes mucus, the pollen of the male stamen is stained with a brush or cotton ball, and then the female stigma is stained, and pollination is over. In order to increase the probability of pollination, you can try several fathers' stamens, at the same time, in the morning and afternoon. ...
Cheese answer
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Sword dance, the father of this pill.