SHEN Xin,LU Gang,LIU Xinhong,et al.Study on Growth Variation Pattern of Cerasus Cultivars With Red Flowers in the Seedling Stage[J].Northern Horticulture,2019,43(07):85-93.[doi:10.11937/bfyy.20183567]
樱花红色系品种苗期生长特性及变异规律分析
- Title:
- Study on Growth Variation Pattern of Cerasus Cultivars With Red Flowers in the Seedling Stage
- Keywords:
- Cerasus; phenology; growth; principle component analysis
- 文献标志码:
- A
- 摘要:
- 以33种红色系樱花品种为试验材料,通过观测其在杭州地区的嫁接成活率、物候和生长情况,分析各品种物候因子、生长因子的特征及其与环境因子的关系,以期探究红色系樱花品种在杭州地区的物候、生长特性及变异规律,为今后引种驯化、栽培管理提供依据。结果表明:33种红色系品种中26种樱花的嫁接成活率达85%以上;22种樱花为高抗型品种,“旭山”樱、“花笠”樱、“河津”樱等品种表现出较好的适应性。各品种间物候存在丰富的变异,叶芽萌动期在品种间变异系数最大,为11.69%;落叶始期极差最大,达96 d;叶片持绿期变异系数为11.10%。物候因子、生长因子及二因子之间均具有相关性;生长因子与萌动期、展叶期呈负相关,与叶变色期、落叶期呈正相关。根据主成分分析的方法,将5个物候因子和2个生长量因子综合为3个主成分,根据主成分值将33个红色系品种分为4类,分别为短生长期型、长生长期型、早物候型和中间型。
- Abstract:
- To investigate variation of phenology and growth of thirty-three Cerasus cultivars with red flowers in Hangzhou,the characteristics of phenology and growth,and the relationship between these characteristics and environmental were analyzed based on survival percentage of grafting,annual growth and phenological period,which would be helpful for planting and managing.The results showed that the survival rate of grafting of twenty-six cultivars in all cultivars was more than 85%.Twenty-two cultivars were high disease resistant,including Cerasus serrulata ‘Asahiyama’,C.serrulata ‘Hanagasa’, C.×kanzakura ‘Kawazu-zakura’ et al.In phenology,these cultivars had abundant variation,especially the date of leaf bud germination,with the coefficient variation of 11.69%.The maximum range of leaf fall was 96 days,and the coefficient variation of stay green was 11.10%.Both intra- and inter- of phenology traits and growth traits were relevant.The growth traits were negatively correlated with leaf bud germination date and leaf expanding date,and were positively correlated with leaf discoloration date and leaf fall date.Using principle component analysis (PC),the phenology traits and growth traits were synthesized into three components.According to the values of PC,all of the cultivars were divided into four types,short growth-period type,long growth-period type,early phenology type and middle type.
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备注/Memo
第一作者简介:沈鑫(1986-),男,博士,助理研究员,研究方向为林木育种。E-mail:shenxinjdy@126.com.责任作者:蒋冬月(1988-),女,博士,助理研究员,研究方向为园林植物应用。E-mail:JDYzjforestry@163.com.基金项目:浙江省属科研院所扶持专项资助项目(2017F30017,2016F50024);浙江省十三五林木新品种选育资助项目(2016C02056-12)。收稿日期:2018-12-19