Grafting, cutting, layering and other asexual seedling raising methods can achieve dwarfing effect, shorten flowering period, reduce plant height and compact plant type. Grafting can be dwarfed by selecting dwarfing varieties.

Second, shaping and pruning

Through plastic surgery, the main branch is cut off when the plant is young to promote its germination, and then the bad side branches are cut off to achieve full plant shape, low plant and improve ornamental value.

Third, control fertilization.

Potted flowers should be treated with phosphorus and potassium fertilizer in time and less nitrogen fertilizer to control the vegetative growth of plants and achieve dwarfing.

Fourthly, artificial koji making and drying.

The twisted branches on human body block the nutrient transport channel of plants, slow down the growth rate of plants, and achieve the low plant type of flowers. Generally used in the production of small bonsai.

Verb (abbreviation of verb) uses plant growth regulator.

1. Spraying paclobutrazol on a bunch of red plants can shorten internodes, reduce leaf area and deepen leaf color, thus changing the phenomenon that a bunch of red plants are tall, with thin stems, sparse leaves and serious flower shedding.

2. mepiquat chloride can reduce the plant height by 26%, shorten the stem nodes, increase the number of branches and improve the ornamental value.

3. Treating the plants with B9 can inhibit the vegetative growth of morning glory, shorten its vegetative growth period by 665,438+0.5% ~ 67%, and shorten its flowering period by 40.5%, thus making the plants short, with compact branches and leaves and concentrated flowering period.

4. Using chlormequat chloride to inhibit the vegetative growth of morning glory can dwarf its plant type and improve its ornamental value.

Six, radiotherapy

By changing the growth conditions through radiation treatment, dwarfing can be achieved.