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Effect of Two Plant Growth Regulators on Seedling Growth of Eucommia ulmoides Oliv(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2012年22期
Page:
157-159
Research Field:
Publishing date:

Info

Title:
Effect of Two Plant Growth Regulators on Seedling Growth of Eucommia ulmoides Oliv
Author(s):
TANG Ping; HAN Cun-cun
Lianyungang Teacher’s College，Lianyungang,Jiangsu 222006
Keywords:
Eucommia ulmoides ?Oliv; NAA; 2; 4-D; root; stem
PACS:
S 567.1+9
DOI:
-
Abstract:
The effect of different concentration of naphthalene acetic acid (NAA) and 2,4-dichlorophenoxyacetic acid(2,4-D) on seedling growth of Eucommia ulmoides Oliv were analyzed.The results showed that NAA and 2,4-D with different concentration had different effects on the growth of root and stem of E.ulmoides Oliv.NAA and 2,4-D，in the range of 0.0001~1 mg/L，could promote the growth of the weight and length of stem.The effect of 2,4-D was more significantly.2,4-D above 0.1 mg/L can performed significant inhibition to root elongation，but NAA must get to 1 mg/L.The root growth of E.ulmoides Oliv was more sensitive to 2,4-D than to NAA.Number of lateral roots were the most at the concentration of beginning to inhibit root growth (NAA was 1 mg/L，and 2,4-D was 0.1 mg/L).

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Last Update: 2014-08-31