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机构地区:[1]北京市黄垡苗圃,北京102601 [2]北京农业职业学院,北京102442
出 处:《北京农业职业学院学报》2015年第4期19-24,共6页Journal of Beijing Vocational College of Agriculture
基 金:北京市财政项目(PXM2014154305000004)
摘 要:以彩叶树种金叶国槐为研究对象,对其在北京市黄垡苗圃进行叶色稳定性、物候期、生长情况、繁殖及栽培技术研究。研究表明:(1)金叶国槐在春季(4-5月)叶片为靓丽金黄色,在夏秋季(6-10月)新生叶为金黄色,老叶渐变绿。落叶期在每年的10月中下旬至11月上旬。(2)金叶国槐在试验地萌芽、展叶、开花、生长、落叶,年生长发育规律正常。(3)金叶国槐可通过嫁接方法繁育,成活率可达95%。(4)金叶国槐具有较强的抗逆性。能够适应北京地区冬季干冷、夏季湿热的气候条件,可安全越冬越夏,无焦叶抽条现象。通过连续观测未发现严重病虫害现象。在北京地区具有广阔的推广应用前景。The color trees Sophorajaponica' Jinye' were chosen as studied objects. We studied stability of leaf color, phenology, growth, multiplication and cultivation techniques of them in Beijing Huangfa nursery. The results indicated that: (1) The leaves of Sophorajaponica' Jinye' were golden on spring (AprilMay),while the old leaves turned green on summer and autumn(June-October). The defoliating period was in mid-October to the beginning of November. (2) Sophorajaponica' Jinye' could bud, leaf, flower, growing, deciduous in the testing ground. Its annual growth and development was normal. (3) To propagate by grafting method, survival rate of Sophorajaponica' Jinye' might be 95%. (4) Sophorajaponica' Jinye' had high resistance to hot-humid summer and dry-cold winter environment. They could live through the summer and the winter safely without scorching leaves or sprouting of grapes. We did not find serious disease or insect through observing continuously. Sophorajaponica' Jinye' could have a good prospect of application and extension in Beijing.
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