How to propagate Dianthus scientifically
Carnation can be propagated by sowing and tissue culture:
1. Sowing and breeding. First of all, healthy plants without diseases should be selected as seed mother plants. When the capsules change from green to light yellow, they should be harvested, dried, and the seeds scattered. After impurities are removed, they should be stored in dry and ventilated places. In the Yangtze River basin in the south, sowing is mostly done in March. After germination and emergence of seeds, seedlings must be thinned, and the gap between seedlings must be increased so as to ventilate and transmit light to make them grow strong; it can also be directly planted on the seedling bed according to the row spacing of 20 cm ×40 cm for maintenance and management. The seeds planted during this period mostly bloom in May to June.
② Tissue culture propagation. Because the seedlings cultivated in test tubes have thin stems and few roots, they must be cultivated in pearlite and other soil seedling beds for a period of time to make them a complete and healthy seedling before they can be planted in the nursery. Although this method requires large investment and high technical requirements, the seedling quality is better.
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Breeding Management of Carnation in the United States
Propagation methods: sowing and cutting propagation. 1. Sowing and breeding can be done in spring and autumn. The seeds were sown in the open field from September to October in autumn. The optimum temperature for germination was 1-0: 20 ℃. American carnation seedlings need one and a half months of low temperature vernalization to differentiate flower buds, so they do not blossom in spring, but only grow leaves, and can not bloom until the early summer of the following year. It is suitable for seedlings to grow 2~3cm before frosting. Sow seeds in the field, sowing 200 seeds per square meter. If the seedlings are produced, they can be doubled to 400 per square meter after they are grown. Sow seeds in the greenhouse.
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How to cultivate Carnation scientifically
Carnation is mostly propagated by sowing and sowing in September at a temperature of 12: 18 ℃ and can emerge in about 10 days. It can also be propagated by cuttings, cutting 6 cm long branches as cuttings. It is best to choose 7 parts of garden soil and 1 part of compost soil for potted plants. The culture soil mixed with 2 parts of sandy soil can be transplanted into a small flowerpot with a diameter of 6 cm and 8 cm when the seedlings grow to 4 leaves. After growing into a large seedling, it can be planted in a flowerpot with a diameter of 15 cm and cultured in a place with sufficient sunlight. During the growth period, the flowers will be irrigated with fertilizer and water every 10 to 14 days.
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