【摘要】 本文根据西安夏季高温和干旱的气候特点,采用田间栽培法和测定叶片水分状态、抗热性、胞膜透性、保水力及忍耐脱水性等抗逆性生理指标的方法,对新引种观赏植物的抗热、抗旱性能及有关栽培技术进行了探讨。结果表明:黑壳楠(Lindera megaphylla)的田间表现和各个抗逆性生理指标均一致反映了它具有明显的耐高温和耐干旱的生理特点,所以仅采用一般栽培管理就可顺利越夏。而蝴蝶树(Viburnum plicatum f.tomentosum)的田间表现和上述抗逆性生理指标均不如黑壳楠,它只能忍耐轻度高温,而不能忍受干旱。因此,只有保证及时灌水,它才能在西安地区顺利越夏。更多还原

【Abstract】 According to the hot and drougt climate in summer in Xi’an, thehot, drought resistance and cultivation technique of some newly intro-duced ornamental plants were studied by field cultivation and stressphysiological parameter such as leaf water condition, hot resis-tance, cell membrane permeability, water holding capacity and theresistance to water loss. The result showed that L. megaphylla hadstorng resistance to hot and drought which were expressed to be thesame both by field planting and stress physiological indexes. So the ordinary management can cultivate L. megaphlla to passsummer safely. Both field expression and stress physiological indexesof V. plicatum f. tomentosum were inferior than L. megaphlly so they canendure only light hot and can not endure drought. Therefore V. plica-tum f. tomentosum can pass summer in Xi’an safely only watering in time.更多还原