CATDOLL : CATDOLL: The flower color of snapdragon is controlled by a pair of alleles, AA is red, Aa is pink, and aa is white. The red snapdragon and the white snapdragon are hybridized to obtain F1.

1. The flower color of snapdragon is controlled by a pair of alleles, AA is red, Aa is pink, and aa is white. The red snapdragon and the white snapdragon are crossed to obtain F1.

A. The proportion of red flower individuals (AA) in F2 is

1

4

, A is correct;

B. The proportion of white flower individuals (aa) in F2 is

1

4

, B is correct;

C. The proportion of homozygotes (AA and aa) in F2 is

1

2

, C is wrong;

D. The proportion of heterozygotes (Aa) is

1

2

, D is correct.

Therefore, the answer is: C.

2. Snapdragon Flower Language

The meaning of the flower language of snapdragon usually expresses abundance of money, prosperity, liveliness, auspiciousness, pure heart, etc. You can give snapdragons as gifts when visiting relatives and friends, or you can give them to your friends or children to express your praise and admiration for the pure heart.

1. More than enough money

In our traditional culture, fish can symbolize abundance every year. Snapdragon looks like a goldfish and its flowers are bright and unique. Therefore, its flower language can represent the meaning of having more money than you need. It is suitable to give to friends who do business, or to put in the store to attract wealth.

2. Prosperity The flower language of red goldfish flower mostly expresses prosperity. It means that whether it is study, career, or other emotional lines in your life, you can be smooth and prosperous, and do what you want to do and achieve.

3. Lively and auspicious

The tall snapdragons sway in the wind, and the colorful flowers are eye-catching. It feels very lively to watch, like little fish playing on the branches. It can be given to good friends or children to express the meaning of liveliness.

4. Pure Heart

Because the flower shape of snapdragon is very similar to goldfish, and goldfish has a short memory of only 7 seconds, the flower language is derived from it, which symbolizes purity and simplicity. They will not complain because of the unsuitable growing environment, but only have the purpose and pursuit of growing upward, simple and happy.

3. Flowers bloom in clusters, which are much more beautiful than flowers that bloom out of the pot.

Snapdragon (Author: Guotai Min'an Source: Sina Blog)

Because the shape of the flower resembles a goldfish, it is named snapdragon. Its flower colors include white, light red, dark red, flesh color, dark yellow, light yellow, etc. It is a very suitable flower for ornamental plants. Not only that, snapdragon also has the meaning of good luck and wealth, and is loved by many people.

(Author: Peace and Prosperity Source: Sina Blog)

Maintenance method:

(1) Potting soil:

The cultivation of snapdragon is suitable for soil pots or plastic pots with a diameter of about 15 cm and good air permeability. Leaf mold, peat mixed with plant ash can be used as the culture medium. Before planting, you can choose to add some bone meal to the potting soil as base fertilizer.

(2) Water content:

Snapdragons are sensitive to water. If the soil is waterlogged, it will cause root rot, but insufficient water will affect its growth and development. Therefore, the best way is to keep the soil moist and let the soil dry slightly between watering. In addition, it is important to avoid watering from above the plant to prevent the leaves from being too wet.

(Author: Luoyang Flower Lover Source: Snapdragon Bar)

(3) Lighting:

Snapdragon is a light-loving plant. When there is sufficient light, the growth height can remain consistent and the flowers are bright and neat. If there is insufficient light, the plant will be too tall and the color of the flowers will be lighter.

(4) Pruning:

After the snapdragon blooms, you need to cut off the above-ground part at the same level as the soil and water it thoroughly. New branches will sprout after about a week. After that, apply thin liquid fertilizer every 10 days until flower buds are formed.

Bluebell (Source: Material Home)

There are more than 300 species of bellflowers in the world. The shape of the flower is like a wind chime, and the flowers are fresh and elegant. It is a flower that can be often seen in late spring and early summer. People often use it to express gentleness and loveliness.

(Author: The stars are not bright Source: ZOL Forum)

Maintenance method:

(1) Lighting

Campanula likes sunlight and needs a long period of sunshine every day, at least 14 hours. You can adjust its flowering period by adjusting the light. If you want to advance its flowering period, you can put it in darkness for 4 hours every day.

(2) No need to pinch the top of the stem

Campanula does not need to be pinched. In the early stages of growth, the appearance of Campanula is rather messy, but in the later stages of growth the plant will naturally become neat and compact, so there is no need to pinch or manage it.

(Author: Shuanghuashang Source: Windbell Bar)

(3) Fertilizer

During the seedling stage of campanula, a lot of fertilizer is needed. You can apply more calcium and nitrogen fertilizers, and then apply an appropriate amount of calcium fertilizer regularly to promote rapid growth of the seedlings.

(4) Reproduction

Campanula mainly reproduces by seeds. If the seeds are sown immediately after they mature, the plants will bloom in the second year; if they are sown after autumn, they will not bloom until the third year.

Dendrobium (Author: Longyan Sees the World Source: Yangxian Forum)

Dendrobium is a relatively large species in the orchid family. In the wild, it mainly grows on tree trunks and rocks. Its stems are as ugly as a stick, but the flowers it blooms are brightly colored and fragrant. It is one of the four major ornamental foreign flowers.

(Author: Huayuan Orchid Garden Source: China Orchid Trading Network)

Maintenance method:

(1) Potting soil

Dendrobium orchids have an underdeveloped root system. The potting soil can be made of sawdust, perlite, and leaf mold in a ratio of 1:1:1. Broken tiles are spread on the bottom of the pot, and then a layer of sphagnum moss is spread on the surface of the substrate. This will have a better moisturizing effect. The flower pot can be an open shallow flower pot or a tile pot with good air permeability.

(2) Water and fertilizer:

Dendrobium is delicate and afraid of dryness and waterlogging, especially in spring when new buds sprout, it needs sufficient water. It can be watered every 2-3 days, and then sprayed with water to maintain the air humidity around the plant. Dendrobium avoids concentrated fertilizers, and two dissolved compound fertilizers can be applied every month.

(Author: dridchoi Source: Dendrobium Bar)

(3) Lighting:

Dendrobium orchids love sunlight, especially during the flowering period. The more sunlight they get, the fuller and more beautiful the flowers will be. During the growing period, they need to get 4-6 hours of sunlight per day, and during the flowering period, they need to get 6-8 hours of sunlight per day.

(4) Pruning:

Dendrobium orchids need to be repotted and re-soiled every two years in spring. During the repotting process, the problematic roots should be trimmed in time. Depending on the growth of the plant, it can be divided. When dividing the plant, 2-3 old branches should be retained so that the divided plant can bloom in the same year.

Peony (Author: Li Bin023 Source: Peony Forum)

The peony is also called the brocade sac flower. It has four petals, and the white stamens inside extend from the petals, like a small purse; the leaves are also similar to the leaves of the peony, so it is called the peony. Its flowering period is from April to June, and it is a flower that can be used in potted plants and gardens.

(Author: angelbgoyhappy Source: Hebao Peony Bar)

Maintenance method:

(1) Potting soil:

The peony likes to grow in soil rich in humus. You can use leaf humus and garden soil mixed in a ratio of 1:1 as the culture soil. Sandy soil and clay soil will cause it to grow poorly.

(2) Water and fertilizer:

Peonies are cold-resistant and afraid of waterlogging. Daily watering should follow the principle of "don't water unless the soil is dry, and water thoroughly when you do". During the vigorous growth period in spring and autumn, water once every 1-2 days on sunny days and once every 3-5 days on cloudy days. If you water too much, the roots will rot easily, and if you water too little, it will easily lead to poor growth and yellowing of the leaves.

Peony likes fertilizer. During the growth period, it needs to be fertilized with a thin liquid fertilizer of nitrogen, phosphorus and potassium every 10-15 days to make it lush and blooming. However, fertilization should be stopped after the flower buds show color.

(Author: wangwangding Source: Qilu Community)

(3) Lighting:

The peony prefers a semi-shady environment with sufficient scattered light and is afraid of strong light. Therefore, it should be placed under a large tree in the courtyard or on the shady side of a building. It can also be placed on east-facing or north-facing balconies.

(4) Pruning:

The roots of the peony are relatively sweet and are easily harmed by ants and other pests. You can use a 1000-fold DDT solution instead of water for watering to kill pests and diseases.

After the leaves fall, you need to do shaping and pruning. Cut off all the dense branches on the plant, such as parallel branches, cross branches, and diseased and insect-infested branches, to keep the plant beautiful.

Wisteria (Author: aibiwen1 Source: Wisteria Flower Bar)

Late spring is the season when wisteria flowers bloom. Its flowers hang in clusters on the branches, purple with a hint of blue, looking very gorgeous. Therefore, wisteria is also regarded as a symbol of nobility, implying the coming of purple air from the east.

(Author: Wisteria Lover 001 Source: Wisteria Flower Bar)

Maintenance method:

(1) Potting soil:

Wisteria has a long taproot and needs a deep soil layer. Therefore, it is best to plant wisteria in a dry environment with deep soil layer, fertile soil and good drainage. If the pot soil is too wet, it will cause root rot.

(2) Fertilization:

Wisteria flowers need to be fertilized with compound fertilizer 1-2 times a year. Nitrogen fertilizer can be applied during the budding period, and topdressing is required 2-3 times during the growth period, and well-rotted fertilizer is sufficient.

(Author: aibiwen1 Source: Wisteria Flower Bar)

(3) Reproduction:

Wisteria can be propagated by cuttings, layering, sowing, grafting, etc., and cuttings and layering are generally used.

(4) Pruning:

Wisteria pruning needs to be done during the dormant period. When pruning, you can use the method of removing dense branches and leaving thin branches to make the branches evenly distributed. Wisteria has a particularly strong ability to branch out. New flower buds mainly grow in the axils at the base of the branches, so the tops are prone to dryness. It is necessary to cut back the new branches grown that year, and reduce them by about 1/2.

Wisteria can be propagated by cuttings, layering, sowing, grafting, etc., and cuttings and layering are generally used.

A bunch of red (Author: Longjing Tea Source: Nanxiang Evening News)

Amaranthus is also called Western red. Its flowers are mostly red, bright and warm. When they bloom, they look like a bunch of red firecrackers. Amaranthus has a long flowering period, from late summer to late autumn, and it blooms continuously, and it is not easy to wither. It is an ideal potted flower.

(Author: Yu Huo Source: Photography Forum)

Maintenance method:

(1) Water and fertilizer:

Red bean is relatively drought and moisture tolerant. In the early growth stage, you can water it once every two days to prevent the leaves from turning yellow and falling off; in the vigorous growth period, you can increase the amount of watering appropriately, and watering it once a day is enough.

Apply more fertilizer before flowering to make the wisteria flowers have green leaves, thick stems, short and strong, and have more branches. The fertilizer can be a mixture of urea, potassium dihydrogen phosphate and a small amount of superphosphate.

Fertilization is usually combined with watering. Fertilize 8-12 hours after each watering.

(Author: Falling in Love with the Big Tree Source: A String of Reds)

(2) Lighting:

Amaranthus likes light. Generally, you can let Amaranthus receive light from early morning to 12 noon, and move it to a cool place in the afternoon to keep it in a semi-shaded and semi-sunny environment, so that Amaranthus can grow vigorously.

(3) Topping:

The potted impatiens needs to be topped three times after it takes root. This can inhibit its growth and promote the germination of side buds. The grown plants will not only be short and strong, but also have more flower buds.

Dear flower lovers, do you think these bunches of flowers are very beautiful?

Stop worrying about the explosion.

Come and plant a bunch of flowers.

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