云南蕊帽忍冬的扦插育苗方法研究

云南蕊帽忍冬(Lonicera pileata Oliv.f.yunnanensis(Fr.)Rehd)是分布于云南、四川等地海拔2100—3200米处的常绿或半常绿小灌木,现主要开发作为盆景材料和绿篱植物。本文研究了该植物的扦插育苗方法,结果表明,云南蕊帽忍冬的扦插育苗可全年进行,应利用当年抽生的木质化或半木质化枝顶段或中段作为插条,长5—6厘米,用IAA 2000ppm快蘸后插入滇池草炭或红土或炉渣中,在温度15-38℃,平均空气相对湿度87.9%以上,透光约50%全光照条件下,30—50天内可得到好的生根苗;芽和叶在云南蕊帽忍冬的扦插生根中起重要作用,采条时要避免它们的损坏和脱落,本文还对在6-8月份抽生枝最旺盛的期间,在昆明的露地进行了扦插育苗试验,认为露地扦插后,插床用白色塑料薄膜封闭,竹帘遮荫,插条生根最好。

STUDIES ON PROPAGATION BY CUTTINGS FOR GROWING SEEDLING OF LONICERA PILEATA f. YUNNANENSIS

Lonicera pileata Oliv. f. yunnanensis (Fr.) Rehd, an evergreen or semi-evergreen shrub, distributed to Yunnan and Sichuan with an elevation of 2100--3200metres, is a fine potted landscape plant. This paper deals with the method studies ofgrowing seedlings by cuttings. Test results showed that growing seedlings by cuttings can be carried out in theperiod of all year round. The woody or semi-woody branches 5--6 cm in length ofsprouting in same year were utilized as cuttings cultured in peat (from Dianchi Lake)or nature red soil or coal cinder. Within 30--50 days, the excellent rooted cuttingswere achieved, under the conditions of 15--38℃ temperature, mean relative humidityof 87.9% and about 50% shading. Because of the buds and leaves are important in thecuttings rooting, therefore, they should be protected carefully. Besides, the test of propagation by cuttings in outdoor indicated that cutting-bedcovered with white plastic film, then shaded with bamboo fence, is very appropriatefor rooting of Lonicera pileata Oliv. f. yunnanensis (Fr.) Rehd, during the period fromJune to August, in which branches sprouting are very strong in Kunming area ofYunnan.