冷积累阶段与单氰胺的交互作用对树莓休眠破除的影响  

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

作　　者：李路[1,2] 段安安[1] 董凤祥[2] 张清华[3] 张利利[2,4] 何文杰[2,4] 

机构地区：[1]西南林业大学林学院,云南昆明650224 [2]中国林业科学研究院林业研究所,北京100091 [3]中国林业科学研究院森林生态环境与保护研究所,北京100091 [4]南京农业大学园艺学院,江苏南京210095

出　　处：《北方园艺》2015年第2期10-14,共5页Northern Horticulture

摘　　要：以树莓品种"费尔杜德"穗条为试材,研究了单氰胺浓度(喷施浓度为0.5%、1.0%、1.5%、2.0%、2.5%)和蓄冷阶段(0%、20%、30%、40%、50%、60%、70%和100%)的交互作用对树莓休眠脱除的影响。结果表明:在所有浓度处理中,0.5%浓度单氰胺破眠效果最佳,药害表现最轻,当单氰胺浓度≥1.0%时,穗条药害严重;在处理时期上,穗条处于40%冷积累阶段施用0.5%单氰胺破眠效果明显,水培2周后,穗条萌芽率大于50%;当冷积累量超过总需冷量的50%以后,单氰胺处理组萌芽率下降。试验当中,单氰胺的浓度和冷积累的交互作用导致"费尔杜德"穗条萌芽率具有极显著差异(P≤0.001)。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.

关 键 词：树莓 冷积累阶段 单氰胺 人工破眠 

分 类 号：S662.9[农业科学—果树学]