Promote Rooting of Tea Tree Cuttings
隐藏域元素占位
Promote Rooting of Tea Tree Cuttings
Application of regulators to promote rooting in tea plant cuttings
2,4-D
Tea tree cuttings or mother plants treated with 2,4-D can accelerate the division and elongation of cells and promote the production of adventitious roots. According to the research, 2,4-D has obvious effect on the growth of underground roots, mainly by strengthening the initial cell division, increasing the volume, and increasing the water absorption, so that the stimulated cells and tissues can speed up the absorption of nutrients, and promote the rooting of cuttings. and growth, improve the survival rate, and ensure strong seedlings. The cuttings developed roots 20 days earlier than the control, with an average of 34.2 roots per cutting, which was 4.8 times that of the control, and the survival rate was 96%, which was 14% higher than that of the control. Treatment by dipping or spraying: ①The base of cuttings is dipped, 1～2cm of the base of cuttings is immersed in 40～80mg/L2,4-D liquid medicine, and the cuttings can be taken out after 12 hours; ②The mother tree is sprayed, and the mother tree is left to grow When the new shoots are mature, spray 50mg/L 2,4-D liquid 7 to 9 days before cutting the ears, to fully moisten the branches and leaves of the new shoots, and spray 200 to 250kg of the water solution per acre of the crown. (Note: The dipping time of cuttings should be reduced with the increase of concentration; the concentration of the chemical should be strictly controlled during treatment, because growth can be promoted under suitable concentration conditions, and too high will inhibit growth or die.)
Naphthalene acetic acid (sodium)
Soak the base of the cuttings for 3-4 hours with 60-100 mg/L liquid medicine before cutting. In order to improve the effect, 50mg/L naphthalene acetic acid (sodium) + 50mg/L IBA mixture, or 100mg/L naphthalene acetic acid (sodium) + 5mg/L vitamin B1 mixture can also be used.
IBA
Before cutting, use 20-40 mg/L liquid medicine, and soak it in 3-4 cm long at the base of cuttings for 3 hours. IBA is easy to decompose when exposed to light. Medicines should be packed in black and stored in a cool and dry place.
50% naphthalene ethyl·indomethacin rooting powder
Use 500mg/L 50% naphthalene ethyl·indene rooting powder for tea tree varieties that are difficult to root, and use 300-400mg/L rooting powder for easy rooting for 15s, leave for 4-8h, and then cut. It can promote early root development, 14 days earlier than the control; increase the number of roots, 18 more than the control; improve the survival rate, 41.8% higher than the control; increase the dry weight of young roots, 62.5% higher than the control; increase the plant height, more than the control Height 15.3cm. After treatment, the survival rate was almost 100%, and the nursery rate was increased by 29.6%. Gross output value increased by 40%.
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