Study on Chilling Requirement of Different Pear Cultivars
Study on Chilling Requirement of Different Pear Cultivars
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发表时间：
2011
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通讯作者：
Liu Xianqin
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作者：
Liu Xianqin
采用≤7.2℃、0 -7.2℃和犹他州模型对金水1号、安农1号、金水2号、早酥、鄂梨1号和鄂梨2号6个梨品种的需冷量进行了估算。结果表明：不同梨品种用≤7.2℃、0 -7.2℃和犹他州模型估算的需冷量差异显著，同一品种用≤7.2℃和犹他州模型估算的需冷量相近;金水1号、安农1号、金水2号、早苏、鄂梨1号、鄂梨2号的芽需冷量分别为383、440、543、645、733、1034 h（≤7.2℃），花蕾需冷量分别为383 h、440 h、440 h、645 h、733 h、1034 h。
≤7.2℃,0-7.2℃ and Utah model were used as estimation of the chilling requirement of 6 pear varieties-Jinshui 1,Annong1,Jinshui2,Zaosu,Eli 1 and Eli 2.The results showed that:the bud chilling requirements of different pear varieties,which were estimated by ≤7.2℃,0-7.2℃ and Utah model,were significant different;the bud chilling requirements of the same variety estimated by ≤7.2℃ and Utah model were approximate;the chilling requirement of bud of the varietie Jinshui 1,Annong 1,Jinshui 2,Zaosu,Eli 1 and Eli 2 were 383h,440h,543h,645h,733h,1034h(≤7.2℃ chilling model),and the chilling requirement of flower bud were 383h,440h,440h,645h,733h,1034h,respectively.