摘要
海滨木槿是一种优良的园林绿化树种,也是盐碱地造林绿化的首选树种。以海滨木槿种子为试材,对其育苗和绿枝扦插繁殖技术进行了研究,以期为该树种的开发利用提供参考依据。结果表明:海滨木槿种子经过沙藏发芽率和成苗率显著提高;吲哚丁酸(IBA)对海滨木槿绿枝扦插生根有显著促进作用,3 000mg·L-1 IBA处理是海滨木槿绿枝插穗生根最适浓度,生根率达到97%以上;扦插季节影响插穗生根,5、6月绿枝扦插生根率、根数和根长最好;海滨木槿1年生枝半木质化嫩梢和2年生枝木质化茎段生根率没有显著差异,插条木质化程度对海滨木槿扦插生根影响不明显。
Hibiscus harnabo is an excellent ornamental tree species and it is also the first selection tree species in saline-alkali soil forestation. In the study,seedling and leaf cutting of Hibiscus hamabo were studied. The results showed that germination rate and seedling rate of Hibiscus hamabo seed were significantly improved with sand. The application of IBA could significantly improve the leaf cuttings＇ rooting ability, and the optimum IBA concentration for leaf cutting of Hibiscus hamabo was 3 000 mg L-1. Rooting rate of leaf cutting was up to 97%. The rooting ability was also significantly affected by the season. Rooting percentage,number of roots and root length of leaf cuttings were much higher in May and June. There was no significant difference between semi- lignified apical shoots from aunual branch and lignified stem pieces from biennial branch cuttings＇ rooting rate. Lignification of cutting had no significant effect on the rooting ability of cuttings.
出处
《北方园艺》
CAS
北大核心
2017年第12期74-77,共4页
Northern Horticulture
基金
江西省"十二五"水土保持与荒漠化防治重点学科培育基金资助项目
江西省教育厅科技资助项目(GJJ151114)
江西省林业科技创新专项资助项目(2015006)
关键词
海滨木槿
繁殖技术
吲哚丁酸
生根率
Hibiscus harnabo
propagation technology
IBA
rooting rate
