Common breeding methods and matters needing attention of Zhu Dinghong

The bright color of Zhu Dinghong is very popular with people. Some friends make it into canned flowers, which is convenient for florists to grow. The editor will introduce to you the common breeding methods and matters needing attention of Zhu Dinghong, which can be understood by interested friends.

Zhu Dinghong

1. Reproduce by dividing balls

The bulb propagation was carried out from March to April, and the balls around the mother ball were removed and planted separately. The soil should not be covered too much, and the top of the bulb should be slightly exposed to the soil surface. The propagation of this method takes 2 years to blossom.

2. Propagation by dividing bulbs.

The propagation of segmented bulbs is generally carried out from July to August. First, the bulb is cut into several pieces longitudinally, and then it is divided according to the scales. the outer layer takes 2 scales as a unit and the inner layer takes 3 scales as a unit, each unit needs to have a partial bulb disc. In this method, if the diameter of the divided bulb is more than 6cm, each bulb can be divided into more than 20 cuttings with two scales and three scales, and the cuttings are obliquely inserted in the substrate (the pH value is preferably about 8), keeping 2528 ℃ and proper air humidity. After 30 days, 1 and 2 bulbs can be produced between the scales of each cuttings, and there are roots at the base. It takes about 3 years to blossom.

3. Scale cutting propagation

Select well-developed disease-free bulbs, peel off the outer overmature scales, leaving the middle scales with full growth for reproduction, but each scale must have a stem disk. In September, the scales were planted in a sand bed and kept moist at 18 ℃ ~ 20 ℃. In the same year, small bulbs were formed and roots took root at the base. New seedlings will grow on the bulbs in the next spring and need to be cultured for 3 years to become flowering bulbs.

4. reproduction by engraving method

Select the bulb with a circumference of 24cm and 26cm, soak the bulb in 1% cupric sulfate solution for 5 minutes, rinse with water, cut off the bulb 1x3, gently cut the main bud in the center of the bulb with a knife, place it flat on the sand bed, maintain a high air humidity at room temperature, and form several small bulbs between the scales after 2 months.

5. Propagation by sowing method

As the seeds of Zhu Dinghong are flat, extremely thin, easy to lose water and lose their germinating power, they should be sown immediately after seed collection. Such as bulb production, cut off the flower stem in time after flowering, so as not to consume the nutrients of the bulb. After the leaves grow, strengthen the fertilization to promote the bulb to enlarge and produce new bulbs. The bulb can be stored for 8 weeks at 13 ℃ and for a long time at 5 ℃.

6. Propagation by tissue culture

MS medium is commonly used, with stem disc, dormant bulb tissue, pedicel and ovary as explants. After tissue culture, calli were produced first, adventitious roots were formed after 30 days, and adventitious buds were formed after 3-4 months.

Zhu Dinghong culture method Zhu Dinghong breeding method

Now, more and more plants are cultivated at home, and Zhu Dinghong is very rich in varieties, strange and changeable flowers, and has great ornamental value, so it is very popular among people. Next, we will introduce the breeding methods and breeding methods of Zhu Dinghong.

Culture method of Zhu Dinghong

1. Water: keep the plant moist and water thoroughly. But avoid too much water, poor drainage. General indoor air humidity is OK.

Fat: like to be fat. During the growth period, fertilization was applied once a semimonthly with the growth of leaves, stopped fertilization at flowering stage, continued fertilization after flowering, mainly phosphorus and potassium fertilizer, reduced nitrogen fertilizer, and stopped fertilization at the end of autumn. Potted plants can add some calcium superphosphate as base fertilizer.

two。 Soil: requires sandy loam rich in organic matter, good drainage and avoid sticking heavy soil.

Wen: it can be cool and dry during dormancy in winter. The suitable temperature for growth is 5 ℃-10 ℃.

3. Light: like the sun, can be the right amount of direct sunlight, not too long. It should be placed in front of a window with bright light, good ventilation and no bright light.

4. Disease prevention and metallurgy

The main diseases are virus disease, spot disease, nematode disease and red spot disease.

Spot disease: harmful leaves, flowers, scape and bulbs, the occurrence of round or fusiform reddish brown spots, especially in autumn. Diseased leaves should be removed; bulbs should be soaked in 0.5% formalin solution for 2 hours before planting, and the same amount of Bordeaux solution should be sprayed regularly in spring.

Virus disease: cause Zhu Ding red root, leaf rot, available, invade cause leaf and stem flower disease, and gradually spread to the bulb direction. The bulb needs to be soaked in 43 ℃ warm water and 0.5% formalin for 3-4 hours to achieve the control effect.

Nematode disease: nematodes mainly invade from stomata in leaves and flower stems, cause disease in leaves and stem flowers, and gradually spread to the bulb. The bulb needs to be soaked in 43 ℃ warm water and 0.5% formalin for 3 hours to achieve the control effect. Pests are harmful to red spiders and can be sprayed with 1000 times of triclofenac EC.

Red spot disease (Stagonosporacurtisii) is harmful to leaves, flowers, scape and bulbs, resulting in round or fusiform reddish brown spots, especially in autumn. Diseased leaves should be removed; soak in 0.5% formalin solution for 2 hours before planting, and spray Bordeaux solution in spring to prevent. Pests include red spiders. Spray 1000 times of insecticidal ether powder.

Breeding method of Zhu Dinghong

Zhu Dinghong is commonly used to propagate by sowing, dividing balls and cutting.

1. Sowing method

Pick-and-sow, high germination rate. The sowing soil is a mixture of 2 parts of peat soil and 1 part of river sand. The seeds are larger and should be sowed on demand, the distance between them is 2 ~ 3 cm, the suitable temperature for germination is 15 ~ 20 ℃, the seedlings emerge at 10 ~ 15 days, and the seedlings are divided into two true leaves. It takes 2 to 3 years from sowing to flowering.

two。 Ball-sharing method

The old bulb can produce 2 or 3 small balls a year, which can be removed and planted. Be careful not to hurt the root of the bulb and expose its top to the ground. It takes about 2 years for the bulb to blossom.

Most of the bulbs were propagated by artificial cutting ball method, that is, the mother bulb was longitudinally cut into several parts, and then divided into two halves in the middle, so that part of the bulb disc was attached to the lower end of the bulb as the root site, and then cut into the cutting bed mixed with peat soil and sand, and properly watered. After 6 weeks, two bulbs could occur between the scales and take root in the lower part. Nearly a hundred young bulbs can be obtained from such a mother bulb.

Zhu Dinghong is easy to bear fruit, and artificial pollination is feasible at flowering stage. The seeds mature after 2 months, and there are about 100 seeds in each capsule. Sow immediately after harvest, and the germination rate is high. After sowing, put it in a semi-shady place and keep it moist and at a temperature of 15: 18 ℃. It can germinate in half a month. If the temperature reaches 18-20 ℃, it will germinate after 10 days. Seed propagation takes 3 ~ 4 years to blossom. Bulb propagation was carried out from March to April, and the bulbs around the mother ball were removed and planted, and the top of the bulb should be exposed to the soil.

3. Cutting method

Cut the cue ball longitudinally into several pieces, then cut its scales and insert them obliquely in vermiculite or sand. It was planted when 2 true leaves were grown. When planting false bulbs, the pot soil is too easy, which will delay flowering or reduce the number of flowers. The mixed soil of 5 parts of sandy loam, 2 parts of peat soil and 1 part of sand can be used.

The above is for everyone to introduce Zhu Dinghong breeding method and Zhu Dinghong breeding method, hope to help you, more household knowledge, please pay attention.

How to reproduce Zhu Dinghong? the breeding method of Zhu Dinghong

Zhu Dinghong bulb nearly spherical, leaves 6-8, extracted after anthesis, bright green, flower stem hollow, slightly flat, with white powder; perianth tube green, cylindric, perianth lobes oblong. Zhu Dinghong is suitable for potted plants to decorate rooms, living rooms, aisles and corridors, can also be cultivated in the courtyard, or planted in flower beds, can also be used as fresh cut flowers. So do you know how Zhu Dinghong propagates? What are the breeding methods of Zhu Dinghong? The editor will introduce it to you.

Breeding method of Zhu Dinghong

The main results are as follows: 1. Ball reproduction: ball reproduction is carried out from March to April, and the balls around the mother ball are removed and planted separately. The soil should not be covered too much and the top of the bulb should be slightly exposed to the soil surface. The propagation of this method takes 2 years to blossom.

2. The propagation of segmented bulb: the propagation of segmented bulb is generally carried out from July to August. First, the bulb is cut into several pieces longitudinally, and then it is divided according to the scales. the outer layer takes 2 scales as a unit and the inner layer takes 3 scales as a unit, each unit needs to have a partial bulb disc.

If the diameter of the divided bulb is more than 6cm, each bulb can be divided into more than 20 double-scale and three-scale cuttings, and the cuttings are obliquely inserted in the substrate (pH value is about 8), keeping 25-28 ℃ and proper air humidity. After 30-40 days, 1-2 bulbs can be produced between the scales of each cuttings, and there are roots at the base. The bulbs propagated by this method need to be cultured for about 3 years before flowering.

3. Scale cutting propagation: select well-developed disease-free bulbs, peel off the over-mature scales in the outer layer, and leave the middle scales with full growth for reproduction, but each scale must have a stem disk. In September, the scales were planted in a sand bed and kept moist at 18 ℃ ~ 20 ℃. In the same year, small bulbs were formed and roots took root at the base. New seedlings will grow on the bulbs in the next spring and need to be cultured for 3 years to become flowering bulbs.

4. Propagation by engraving method: select the bulb with a circumference of 24cm and 26cm, soak the bulb in 1% cupric sulfate solution for 5 minutes, rinse with water, cut off the bulb's 1hammer3, gently cut the main bud in the center of the bulb with a knife, lay flat on the sand bed, keep the bulb at room temperature for 18,22 ℃, maintain high air humidity, and form several small bulbs between the scales after 2 months.

5. Propagation by sowing method: because the seeds of Zhu Dinghong are flat, extremely thin, easy to lose water and lose their germinating power, they should be sowed immediately after seed collection. Such as bulb production, cut off the flower stem in time after flowering, so as not to consume the nutrients of the bulb. After the leaves grow, strengthen the fertilization to promote the bulb to enlarge and produce new bulbs. The bulb can be stored for 8 weeks at 13 ℃ and for a long time at 5 ℃.

6. Tissue culture: MS medium is commonly used, with stem disc, dormant bulb tissue, pedicel and ovary as explants. After tissue culture, calli were produced first, adventitious roots were formed after 30 days, and adventitious buds were formed after 3-4 months.

The above is how Zhu Dinghong propagates, the breeding method of Zhu Dinghong. Zhu Dinghong can reproduce by dividing balls, sowing, cutting bulbs and tissue culture, mainly by dividing balls. In addition, the post-flowering management of Zhu Dinghong should not only reduce the amount of water properly, but also pay attention to the basin soil not to accumulate water, so as to avoid rotten bulbs. Cake fertilizer and water should be applied at intervals of about 20 days after anthesis to promote bulb enlargement and germination of new bulbs.