【摘要】 笔者对潜江市林业科学研究所内丹红杨等6个表现优良的南方型杨树无性系物候期进行观测研究,分析了各无性系萌芽展叶、生长、封顶落叶、开花结实、休眠的时间以及与气温变化的关系,并得出了各无性系的物候表,为丹红杨等优良杨树无性系在江汉平原的繁育栽培提供了理论依据。更多还原

【Abstract】 An observational study on phenophase of Populus deltoides CL.Dan Hong and other fine Poplar clones in Qianjiang City Forestry Research Institute of Hubei Province.The relationship between the climate changes and different growth stages of each clones,including leaf expansion,growth,flowering,fruit-bearing,and defoliation and dormancy are analyzed,thus the phenogram was obtained,providing theoretical basis for the breeding and cultivation of Populus deltoides CL.Dan Hong and other fine Poplar clones in Jianghan Plain.更多还原