19种多年生观赏草在成都地区的引种适应性研究
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摘要
以物候期、形态特征、越夏性、越冬性及抗病虫害能力为观测指标,系统研究了19种多年生观赏草在成都地区的适应性表现。结果表明,蒲苇属、芒属、狼尾草属等13种暖季型观赏草中除蒲苇、矮蒲苇、花叶蒲苇四季常绿外,其余草种均在11月末枯黄,次年3月初返青;除白美人狼尾草每年6月和10月2次开花外,其余草种只开花1次且花期均集中在7～11月,花期较长。蓝羊茅、细茎针茅、金叶苔草、细叶苔草、金边阔叶麦冬和黑麦冬6种冷季型观赏草中,细茎针茅和蓝羊茅夏季休眠,其余草种四季常绿;黑麦冬不开花,其余草种花期均集中在3～5月,花期较短。在成都地区19种观赏草除蓝羊茅越夏性差、死亡率高外,其余草种均能适应成都地区的气候环境。
The systematical observation of phenophase,morphological characters,over-summer ability,over-winter ability,the ability of disease-resistance and pest-resistance of the nineteen ornamental grasses showed some results as follows: as far as the thirteen warm-season ornamental grasses were concerned,except for Cortaderia selloana,Cortaderia selloana "Pumila"and Cortaderia selloana"Silver comet"were evergreen,the rest ten grasses were withered and yellow at the end of November and returned to green in early March. In addition to the Pennisetum Villosum"Longistylum"floweringed in June and October every year,the rest grasses only bloom once,and the anthesis was long,which concentrated on from July to November. As for the six cool-season ornamental grasses,Stipa tenuissima and Festuca glauca"Elijah Blue" hibernated in summer,the rest grasses were evergreen. The Ophionpogon planiscapus Nigrescens did not blossom in Chengdu,while the anthesis of the other five grasses was shorter than the worm-seasoned grasses,concentrate on from March to May. In addition to the high mortality of Festuca glauca"Elijah Blue" in summer,the nineteen ornamental grasses could adapt to the climate and environment in Chengdu.
The systematical observation of phenophase,morphological characters,over-summer ability,over-winter ability,the ability of disease-resistance and pest-resistance of the nineteen ornamental grasses showed some results as follows: as far as the thirteen warm-season ornamental grasses were concerned,except for Cortaderia selloana,Cortaderia selloana "Pumila"and Cortaderia selloana"Silver comet"were evergreen,the rest ten grasses were withered and yellow at the end of November and returned to green in early March. In addition to the Pennisetum Villosum"Longistylum"floweringed in June and October every year,the rest grasses only bloom once,and the anthesis was long,which concentrated on from July to November. As for the six cool-season ornamental grasses,Stipa tenuissima and Festuca glauca"Elijah Blue" hibernated in summer,the rest grasses were evergreen. The Ophionpogon planiscapus Nigrescens did not blossom in Chengdu,while the anthesis of the other five grasses was shorter than the worm-seasoned grasses,concentrate on from March to May. In addition to the high mortality of Festuca glauca"Elijah Blue" in summer,the nineteen ornamental grasses could adapt to the climate and environment in Chengdu.
引文
[1]刘明东.大庆地区野生观赏草种质资源调查及引种[D].哈尔滨:东北林业大学,2007.
[2]武菊英.观赏草:为花园设计注入新的活力[J].中国花卉园艺,2003,(15):38-39.
[3]陈超,袁小环,杨学军,滕文军,武菊英.观赏草的研究概况和园林应用[J].中国农学通报,2015,31(19):135-143.
[2]武菊英.观赏草:为花园设计注入新的活力[J].中国花卉园艺,2003,(15):38-39.
[3]陈超,袁小环,杨学军,滕文军,武菊英.观赏草的研究概况和园林应用[J].中国农学通报,2015,31(19):135-143.