观花、观果型B9和N29植物繁殖技术的研究

Study on propagation technology of two new ornamental plants,B9 and N29

试验分析表明。对B9（Budagovsky）、N29（Malus prunifolia Borkh．）进行高干插皮接、带木质嵌芽接均具有较高的嫁接成活率．均能有效的进行苗木的扩繁；B9插皮接的最佳砧粗范围在0．5～1．0cm的径阶内．嫁接接口愈伤最好；N29的愈伤指数在基砧径阶0．5～2．0cm间差别不大。但均低于同径阶的B9愈伤指数值，表明N29的嫁接苗在出圃及移栽时应适当保护．防止接口的劈裂．越冬休眠枝条的硬枝温床扦插繁殖效果差．认为嫁接繁殖依然是B9、N29用于景观苗木培育的主要途径．

According to the analysis of top grafting of B9（Budagovsky）, N29 （LAOSHAN NAIZI-29. Malus prunifolia Borkh. ）, there was a high survival percentage using bark-insert grafting and chip budding grafting in spring season that could increase breeding quantity effectively. The graft cicatrisation status of bark insert grafting for B9 was very good when the stem diameter of rootstocks was from 0.5 to 1.0 cm, and the difference of indices of grafting cicatrisation for N29 in 0.5 to 2.0 cm stem diameter of rootstocks in bark insert grafting was insignificant, and the indices for N29 was lower than the Bg＇s in the same stem diameter, which indicated that transplanting the nursery plant should be paid much attention. The results also showed that barks insert grafting and chip budding grafting were main ways to breed the nursery plants for B9 and N29, and hardwood cutting was not suitable for hardwood cutting in warm beds.