摘要
观赏芍药(Paeonia lactiflora Pall.)特指芍药科(Paeoniaceae)芍药属(Paeonia Linn.)多年生观赏花卉,是中国的传统名花之一,也是世界花卉市场上的重要切花[1]。芍药品种非常丰富,美国芍药协会(American Peony Society)将之分为3大品种群,即中国芍药品种群(Lactiflora Peony)、杂种芍药品种群(HybridPeony)和伊藤芍药品种群(ItohHybrid)。
Phenophases of 18 cuhivars of herbaceous peony (Paeonia lactiflora Pall.) introduced in Beijing were observed from 2012 to 2014, correlation degree between blooming stage and other six phenophases was analyzed by grey correlation analysis, hereby, its prediction model of blooming stage was established by multiple linear regression analysis method. The results show that correlation degree of blooming stage (Y) with bud color-changing stage ( X1 ) , bud showing stage ( X2 ) and germination stage (X3 ) is higher, and multiple linear regression prediction model is Y= 3.516+0. 680X1 +0. 165X2 + 0. 250X3 (R2 =0. 951 ). The prediction model is tested and its score is 333.34 with a full mark rate of 83.34% , indicating the prediction result of this model is better.
出处
《植物资源与环境学报》
CAS
CSCD
北大核心
2015年第4期108-110,共3页
Journal of Plant Resources and Environment
基金
国家自然科学基金资助项目(31400591)
关键词
芍药
开花物候期
灰色关联分析
花期预测
多元线性回归分析
herbaceous peony (Paeonia lactiflora Pall.)
blooming phenophase
grey correlation analysis
prediction onblooming stage
multiple linear regression analysis