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Study on the Ralationship between Endogenous Hormones and the Rooting Rate of Plantlet of Sugarcane in the Course of Subculture

Xiao Guan

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Abstract

Studies on the endogenous hormones and rooting induction in plantlet of sugarcane subculture were reported in this paper. It was showed that IAA, CTK and GA 1+3 of sugarcane plantlet had an accumulative effect in subculture, the IAA accumulated slower than CTK and GA 1+3 , moreover, the CTK and GA 1+3 accumulated quickly in the 9 th generation of subculture. But the rooting rate reduced in the 9 th generation of subculture. The shortened and clustered buds can't be induced to generate root in the 10 th subculture. The content of IAA, CTK and GA 1+3 in plantlet is significantly correlative with rooting rate.

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What this paper is about

Studies on the endogenous hormones and rooting induction in plantlet of sugarcane subculture were reported in this paper. It was showed that IAA, CTK and GA 1+3 of sugarcane plantlet had an accumulative effect in subculture, the IAA accumulated slower than CTK and GA 1+3 , moreover, the CTK and GA 1+3 accumulated quickly in the 9 th generation of subculture. But the rooting rate reduced in the 9 th generation of subculture. The shortened and clustered buds can't be induced to generate root in the 10 th subculture. The content of IAA, CTK and GA 1+3 in plantlet is significantly correlative with rooting rate.

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Available abstract

Studies on the endogenous hormones and rooting induction in plantlet of sugarcane subculture were reported in this paper. It was showed that IAA, CTK and GA 1+3 of sugarcane plantlet had an accumulative effect in subculture, the IAA accumulated slower than CTK and GA 1+3 , moreover, the CTK and GA 1+3 accumulated quickly in the 9 th generation of subculture. But the rooting rate reduced in the 9 th generation of subculture. The shortened and clustered buds can't be induced to generate root in the 10 th subculture. The content of IAA, CTK and GA 1+3 in plantlet is significantly correlative with rooting rate.

Key concepts: Subculture (biology), Plantlet, Biology, Callus, Tissue culture, Botany, Horticulture, In vitro

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