Method for increasing tender bud cutting and rooting rate of catalpa bungei in mode of removing terminal buds of cutting slips

Abstract

The invention relates to a method for increasing the tender bud cutting and rooting rate of catalpa bungei in a mode of removing terminal buds of cutting slips. The method is characterized by comprising the following steps: selecting three-year to four-year strong branches of catalpa bungei in March, and cutting into 30-40cm shoot segments for sand storage; when the height of newly-germinated tender buds in a sand bed reaches 10-15cm, removing the terminals of the tender buds; after ten days, taking down the tender buds with heels as cutting slips; after cutting off half of leaves on the cutting slips, soaking roots into 75% alcohol for disinfection for 30 seconds, then soaking into 3000mg.L<-1> IBA (Indole Butyric Acid) for 60 seconds, and finally inserting the cutting slips into a seedling-raising disk; inserting one cutting slip into each hole cup with the depth to be 1 / 2-1 / 3 of the length of the cutting slip; after cutting, using a 85% shade net to cover for sun block, and using an automatic spray device to spray for supplying water; and hardening seedlings for 10-15 days and then planting after entering the seedling hardening period, namely 70 days after cutting. The survival rate of catalpa bungei tender buds cut by the method can reach more than 80 percent, and the popularization and application of catalpa bungei are greatly promoted.

Description

technical field [0001] The invention relates to a method for improving the cutting rooting rate of catalpa tree tender buds by removing the top buds of cuttings. Background technique [0002] Catalpa bungei is a precious tree species of the Bignoniaceae genus Catalpa. It is a high-quality timber tree species traditionally cultivated in my country. It is famous for its excellent material and is known as the "King of Wood". Catalpa has strong adaptability and is distributed in a vast area from the seashore in the east to Gansu in the west, Yunnan in the south and the Great Wall in the north. Catalpa is a unique tree species in my country that combines the advantages of ornamental, environmental protection, protection, and corrosion resistance, and has extremely high economic value. At present, the State Forestry Administration, the Environmental Protection Bureau, Henan, Anhui, Jiangsu, Shanghai and other provinces and cities have listed the eucalyptus as an important tree sp...

AI Technical Summary

Problems solved by technology

The present invention aims at the problems existing in tender bud cuttings, and has invented a method for improving the rooting rate of catalpa tree tender bud cuttings by removing the top buds of cuttings. This method has not been reported at home and abroad.

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