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Chinese Agricultural Science Bulletin ›› 2007, Vol. 23 ›› Issue (7): 543-543.

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Studies on the Relationship between the Course of the Dry Matter Accumulation in Aerial Parts in Chrysanthemum and the Available Accumulation Temperature

Li Liwei, Fan Fang, Zhang Yong, Huo Xiaoting, Yang Jiangtang, Wang Wenliang   

  • Online:2007-07-05 Published:2007-07-05

Abstract: In order to make clear the effect of the effective accumulation temperature to chrysanthemum growth and adopt effective manage measure, we did the field experiments.The results of field experiments in 2006 indicated that, the relationship between the dry matter accumulation of aerial parts and leaf and stem in chrysanthemum and the available accumulation temperature was transplanted met the Logistic equation. The ranges of the effective accumulation temperature for the turning points of boom stage were: 1248.5~2071.6℃ and 897.4~1628.9℃and 1234.0~1909.3℃ respectively. The highest instantaneous growth rate was 0.176 g/(d ℃·plant) and 0.057 g/(d ℃·plant)and 0.1024 g/(d ℃·plant) respectively; and they appeared when the available accumulation temperature reached 1660.1℃,1263.2℃,1571.7℃ respectively, after transplantation.

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