Study And Application On Toon Without Dormancy

The experiment systematically study the dormancy property of Toon, by handling with different temperature , pruning the top of stem splitting the stem into several sections, dealing with chemical hormone ,and root damage, etc. The following is the main result: 1. The useful accumulative warm that Toon needs is different in different temperature environments. And with the decreasing of temperature, accumulative warm rising .The useful accumulative warm almost equal each other between before defoliation and after defoliation when Toon transplant. Constanttemperature dealing can abbreviate the time Toon needs in bourgeon comparing to handling in variable temperature, but the difference in warm they need is so little. 2.The useful accumulative warm and the bourgeoning times are equal between the pruning side buds and the whole fronds top buds. The bourgeoning times that the splitting needs is less than the whole dealings. The top buds sprouting times is far more than the side buds in the same frond, and the warm appears consistent in orderliness. 3.Root damage dealing suspends the sprouting times and increases the warm. When dealing the Toon with GA3 solution, effect by irrigating root overmatches daubing sprout or other ways. 4. High temperature and strong illumination avail for the growth of Toon sprout, but not for its flavor and quality. In the phase after buds sprouting, Yield and quality can be increased by selecting the environment that keeping temperature about 25癈and biggish difference in temperature, not so much in illumination intensity and time. It appears obvious correlativity between the fronds' fresh weight and sprout mean daily growth. The activity of root system has great influence in sprout product.