温度和CO2浓度升高下双季稻茎蘖动态、成穗率与产量的关系

宋春燕, 万运帆, 李玉娥, 蔡岸冬, 胡严炎, 周慧, 朱波, 王斌

Relationships between Tiller Dynamic, Earbearing Tiller Rate and Yield of Double Cropping Rice under Elevated Temperature and CO2 Concentration

Song Chunyan, Wan Yunfan, Li Yu’e, Cai Andong, Hu Yanyan, Zhou Hui, Zhu Bo, Wang Bin

图5 增温增CO2下最大分蘖数和成穗率影响双季稻产量的结构方程模型 红色和蓝色箭头分别表示正面和负面作用。实线表示影响通过显著性检验（P < 0.05），虚线表示不存在显著影响。箭头旁数字为标准化的路径系数，方框旁加粗数字为SEM模型可解释该变量的比例。模型所用数据为2013-2016年（n=48）

Fig.5 Structural equation models for the plausible effects of maximum tiller number and earbearing tiller rate on yield of double cropping rice under elevated temperature and CO2 concentration Red and blue arrows show positive and negative effects, respectively. The solid line indicates that the influence has passed the significance test (P < 0.05), and the dotted line indicates that there is no significant influence. The numbers next to the arrows is the standardized path coefficient, and the numbers next to the boxes in bold is the proportion of the variable that can be explained by the SEM model. The data used in the model are from 2013 to 2016 (n=48)