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Effect of Chilling Accumulation Stage and Hydrogen Cyanamide Interact in Breaking Dormancy of Rubus idaeus(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年02
Page:
10-14
Research Field:
Publishing date:

Info

Title:
Effect of Chilling Accumulation Stage and Hydrogen Cyanamide Interact in Breaking Dormancy of Rubus idaeus
Author(s):
LI Lu1; 2; DUAN An-an1; DONG Feng-xiang2; ZHANG Qing-hua2; 3; ZHANG Li-li2; 4; HE Wen-jie2; 4
(1.College of Forestry，Southwest Forestry University，Kunming，Yunnan 650224；2.Research Institute of Forestry，Chinese Academy of Forestry，Beijing 100091；3.Research Institute of Forest Ecology Environment and Protection，Chinese Academy of Forestry，Beijing 100091；4.College of Horticulture，Nanjing Agricultural University，Nanjing,Jiangsu 210095)
Keywords:
Keywords:Rubus idaeus; chilling accumulation stage; hydrogen cyanamide; artificial breaking dormancy methods
PACS:
-
DOI:
10.11937/bfyy.201502003
Abstract:
With ‘Fortodi’ (Rubus idaeus L.) raspberry cuttings as materials，a factorial experiment examined the interaction between hydrogen cyanamide (H2CN2) concentration (0.5%，1.0%，1.5%，2.0%，2.5%) and chilling accumulation stage (0%，20%，30%，40%，50%，60%，70%，100%) on the budbreak were studied.The results showed that the most effective concentration (the greatest budbreak and the lowest phytotoxicity) was 0.5% in all treatment.When cyanamide concentration ≥ 1.0%，cuttings got serious injury.Hydrogen cyanamide-induced budbreak was the highest during the 40% chilling accumulation stage of cuttings，after 2 weeks of cultivation，budbreak rate greater than 50%，however，when the amount of chilling accumulation exceeded 50% total chilling requirement of cuttings，hydrogen cyanamide treatment decreased budreak rate.Significant interactions（P≤0.001）between hydrogen cyanamide concentration and chilling accumulation were found for leads to difference in budbreak of the ‘Fortodi’ raspberry cuttings in this study.

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Last Update: 2015-02-22