Hedge orchard management for rooted cutting of teak plus tree

Propagation of teak by cutting technique will not encounter the problems found in budding technique which has been using since the teak improvement program in Thailand has been started. Cutting is simpler and less expensive than tissue culture. After the rooted cutting technique of teak from mature materials was well comprehended the obstruction in applying for large scale production due to small number of cutting could be produced. Stock plant management in order to produce more shoot per stock while the stock plant still healthy for sustainable use is required for further study. Studies on stock plant management of teak were carried out since 1996 to 2001. The studies included stock plant preparation, how to plant the stock plant, promote more shoots using hormone treatments, maintenance of stock plant by pruning technique, applying fertilizer, and shading. Results of the study showed that ideal source of stock plant was seedling from tissue culture which more stock plants can be provided. Budded shoots is another choice when tissue culture is unavailable. Using stump as budded stock plant was easier and more convenient than using potted seedling while either showed no differences in number of shoot and mortality of stock plant. One, two or three year-old stumps showed no significant different as long as suitable size were used for budding. Rooting hormone application was proved unnecessary for promoting stock plant survival. Prior to first harvesting, fertilization was shown unnecessary while full sun light was significantly reduce stock plant mortality. Number of shoots per stock plant were significantly greater when stock were topped at terminal bud or at the middle of the shoots than those at shoot base. Number of shoots per stock plant were also found varied among clones and hormone application. High concentration of 200 ppm BA was significantly increased shoot number. Less BA concentration plus kinetin at ratio of 10:1 and 20:1 ppm had an interaction effect with clones on their shoot product while the ratio of 10:10 and 10:5 had non significantly effect. GA3 application at high concentration as 50 ppm and higher burned the shoots. Planting stock produced more shoots per plant with higher survival than the potted stocks but the shoot were not rooted. More studies should be concentrated on how to root these shoots.