Lagerstroemia Lagerstroemia indica Lagerstroemia indica

Heather Photinia serrulata Rosaceae heather

Euonymus Euonymus alatus

Forsythia Forsythia suspensa Oleaceae Forsythia

Pittosporum Pittosporum tobira Pittoaceae

HostaHosta plantaginea Asparagaceae hosta

Iris Iris tectorum Iridaceae Iris

Purple Leaf Plum Prunus cerasifera f.atropurpurea Rosaceae Prunus

Octagonal golden plate Fatsia japonica Octagonal golden plate of Araliaceae

【1】Promote the germination of seeds

Gibberellic acid

Different seedlings and flower seeds were treated with corresponding concentrations of gibberellic acid, which could effectively improve the germination rate. Pyracantha seeds were soaked with 45% concentrated sulfuric acid for 30 minutes, treated with warm soup for 1 hour, and then soaked with 5 mg/L gibberellic acid for 10 minutes. The seeds of Lagerstroemia lagerstroemia were soaked with 500mg/LGA3 for 12h, which could significantly improve the germination rate of seeds. The germination rate of Lagerstroemia pilosula seeds soaked with 200mg/LGA3 for 2h was higher, and the seedlings grew well. After a period of time (15d, 30d, 45d, 60d, 90d) of Pittosporum vulgaris treated at low temperature (5°C), the germination rate of seeds was significantly improved, especially at 25°C and 25°C/15°C, the germination rates were 87%, respectively and 95%. The germination rates of P. chinensis seeds treated with 200 mmol/LGA3 solution for 30 d and 45 d cold stratification were 69% and 94%, respectively. Forsythia seeds were soaked with 200mg/L gibberellic acid for 6 hours, and the emergence rate could reach 61%.

Naphthalene acetic acid

Seed soaking treatment of some flower seedlings can significantly increase the germination rate. 15mg/L naphthalene acetic acid soaked the seeds of Lagerstroemia lavender for 12h, which could significantly improve the germination rate of seeds.

6-BA

5mg/L6-BA soaking the seeds of Lagerstroemia serrata for 12h could significantly improve the germination rate of seeds.

Naphthalene ethyl and indyl forsythia 100mg/L50% naphthalene ethyl and indine soluble powder soaked for 6 hours was the best, and the emergence rate was 19.46% higher than that of the control, reaching 66.27%.

【2】Promote rooting of cuttings and improve the survival rate of cuttings

Naphthalene acetic acid

Naphthalene acetic acid mainly promotes the growth of the main root system. It is usually used at different concentrations of 200-2000 mg/L. The concentration of different plants is slightly different. It is recommended that general tree species be soaked at a concentration of 200 mg/L for about 1min. Using 500mg/L naphthalene acetic acid to soak the cuttings for 10min, the rooting rate can reach 62%. Pittopsia cuttings were soaked with 50mg/L naphthalene acetic acid for 3h, and the cutting effect was the best with the substrate of humus:perlite=1:1, and the rooting rate was 87%, which was 136%-138% higher than the control. The rooting rate of Euonymus sp. soaked with 125mg/L naphthalene acetic acid for 1 hour could reach 70%.

Indolebutyric acid

Before cutting, use 100mg/L liquid medicine for the old shoots, soak the base for 24h, or 2000mg/L, soak the base for 3s. For new shoots, the concentration of the liquid is 5mg/L, the base is soaked for 24h, or 1000mg/L, the base is soaked for 3s, which can promote rooting and improve the survival rate. Indolebutyric acid mainly promotes the growth of lateral roots. Using 500mg/L indole butyric acid to soak the cuttings for 10min, the rooting rate can reach 65%. Pittopsia cuttings were soaked with 50mg/L indole butyric acid for 3 hours, and the cutting effect was the best with the substrate of humus:perlite=1:1, and the rooting rate was 87%, which was 136%-138% higher than the control. The rhododendron was soaked in 200-500 mg/L indole butyric acid solution for 2 hours, and its rooting effect was excellent. The shoots of Euonymus sp. were soaked with 200 mg/L indole butyric acid for 4 h. The rooting rate of crape myrtle was 63%-79% by soaking the semi-lignified cuttings in 200mg/L indole butyric acid for 2h or fast dipping for 5-8s.

Naphthalene Acetic Acid and Indole Butyric Acid

Heather semi-lignified cuttings were soaked in 250mg/L indole butyric acid+250mg/L naphthalene acetic acid solution for 6h, and the rooting rate was 93.8%. When treated with mixed solution of 500mg/L for 60s or 1000mg/L for 30s, the rooting rate was 80%-96.7%.

Naphthalene acetic acid and indole acetic acid

Using 200-500mg/L mixture to soak the cuttings for 10min, the rooting rate can reach 70%-85%. The rooting effect of Pyracantha thorn with crown and hard branches was best treated with the mixed solution of 800mg/L for 5-10s. It is more suitable for the semi-lignified cuttings of Nan to treat the incision in 200mg/L mixed solution for 2h. The rooting rate can reach 78% when the young shoots and cuttings are soaked in 25mg/L mixture for 1 hour. The cuttings of the hard branches of the purple leaf plum are treated with 1000 times of the mixed solution for 10 to 12 hours, and the cuttings can be cut after drying.

【3】Promote the growth of seedlings and enhance the growth of plants

Sodium Nitrophenolate

In the growth period of seedlings, 6mg/L sodium nitrophenolate was sprayed on stems and leaves to improve tree vigor and photosynthesis of plant leaves.

Diethyl aminoethyl hexanoate DA-6

During the growth period of seedlings, after spraying with 8-15mg/L diethyl aminoethyl hexanoate, it can enhance the content of chlorophyll, protein and nucleic acid in the plant, improve the photosynthesis of the tree, regulate the balance of water metabolism in the plant, and then improve the resistance of the tree and promote the growth of the tree. body alive.

Brassinolide

It can be absorbed and conducted by plant roots, stems and leaves, improve the germination rate of trees, and promote tree rooting. Spraying 0.05mg/L brassinolide can significantly improve cell activity and enhance chlorophyll content.

Cytokinin

During the growth period of seedlings, 150-600mg/L cytokinin is applied to the base of seedlings, which can stimulate the horizontal and vertical division of plant cells and rapidly promote the growth of seedlings.

【4】Improve resistance and promote survival

Jasmonic acid

Plants under adverse conditions, spraying 0.2mg/L jasmonic acid, can significantly enhance the induction of plant resistance gene expression.

• aba

Induced antibiotics, also known as “stress resistance factors”, spraying 0.3-0.4 mg/LS-inducing antibiotics under adversity conditions can significantly improve the resistance of plants, which is beneficial for plants to safely overcome adversity conditions.

【5】Early flowering

Gibberellic acid

Applying 526～667mg/L gibberellic acid foliar treatment to smear the flower buds can promote the flowers to bloom in advance.