摘要
对石灰岩植物桂林唇柱苣苔采用不同扦插基质、不同时间和不同叶片大小进行扦插繁殖试验,结果表明：4种扦插基质中,石灰岩土与珍珠岩＋细园土最好,平均成苗率＞95%,可形成2～3个不定芽,叶多为6片,叶长4～5 cm,火烧土最差;3种扦插时间中,3月扦插的平均成苗率最高,为（98.67±2.31）%,叶长（4.31±0.09）cm;1.0 cm×0.5 cm≤繁殖叶片≤1.5 cm×1.5 cm时,平置法比直插法效果好,平置的平均成苗率为（88.67±8.08）%,比直插高20%～30%,繁殖叶片大小为2.0 cm×2.0 cm时,直插的效果比平置略好,平均成苗率为（94.00±5.29）%,比平置高10%以上。
A cutting experiment about a limestone species Chirita gueilinensis was conducted with 3 different treatments：different cutting medium,different cutting time,and different cutting leaf size.The results showed that the best cutting medium was limestone soil and perlite＋fine park soil among the four substrates.By this cutting medium treatment,the average seedling rate exceeded 95 %,and the seedling with 2-3 adventitious buds,and 6 average leaves.The poorest cutting medium was ash soil.Among the 3 cutting time treatment,the optimum month is March.The average seedling rate was up to（98.67±2.31） % which cutting in this month,and the leaf length of the seedling reached（4.31±0.09）cm.By using the cutting leaf size between 1 cm×0.5 cm and 1.5 cm×1.5 cm,the average seedling rate was up to（88.67±8.08） % with placed leaf material horizontal on the medium,which was higher 20 %-30 % than that vertical on the medium.By using the cutting leaf size 2 cm×2 cm,the seedling rate of placed leaf material vertical on the medium was higher 10 % than that of horizontal placed,which was（94.00±5.29） %.
出处
《西南农业学报》
CSCD
北大核心
2009年第5期1395-1399,共5页
Southwest China Journal of Agricultural Sciences
基金
中国科学院知识创新工程资助项目
