CAJ | 학술논문

毛棉杜鹃 Rhododendron moulmainense 和刺毛杜鹃 R.championae 分布于我国长江以南海拔500～1500 m 的灌丛或疏林，是观赏价值较高的野生观花树木，但极少在城市园林中应用。文章比较研究了毛棉杜鹃和刺毛杜鹃在广州低海拔地区全阳与林下生境的生长表现与物候特点。结果表明：两种杜鹃花属植物在全阳坡地都有较高成活率，能正常开花结果，但夏季生长不良。林下生长的植株表现良好，但未见开花，反映了光照条件是两种植物花芽分化的重要条件。综合比较，毛棉杜鹃在广州的观赏效果和适应性要优于刺毛杜鹃。
모면두견 Rhododendron moulmainense 화자모두견 R.championae 분포우아국장강이남해발500～1500 m 적관총혹소림，시관상개치교고적야생관화수목，단겁소재성시완림중응용。문장비교연구료모면두견화자모두견재엄주저해발지구전양여림하생경적생장표현여물후특점。결과표명：량충두견화속식물재전양파지도유교고성활솔，능정상개화결과，단하계생장불량。림하생장적식주표현량호，단미견개화，반영료광조조건시량충식물화아분화적중요조건。종합비교，모면두견재엄주적관상효과화괄응성요우우자모두견。
Rhododendron moulmainense and R. championae are distributed in shrubland or open forest at the altitudes between 500 m and 1 500 m in areas south of the Yangtze River. They are native ornamental trees with beautiful flowers, but seldom grown in the urban landscape. Their growth performance and phenology characteristics in full light and under forest condition of Guangzhou were monitored. The results showed that both Rhododendron species had high survival rates in full light condition. They were able to bloom and fruit in the next spring, but they were vulnerable to heat in summer. While those in partial shade condition grew well, but did not flower. It indicated that light is important factor for their flower bud differentiation and development. By comprehensive comparison, R. moulmainense exhibited better ornamental effect and adaptability in Guangzhou than R. championae.