【摘要】 山楂芽外植体在改良MS+BA2 mg/1(下同)+IAA0.05+LH500或改良MS+BAImg/+NAA0.01+LH500的培养基上,冬、春乃至盛夏和秋季采取的顶芽、腋芽或混合芽,经0—5℃处理2—7天,均可成功地诱导分化丛生芽.在适宜的温、湿度等条件配合下,充足的光照是山楂试管苗移栽成活的主要因素.(?)用粪肥能提高移栽成活率,且幼苗生长茁壮.盛夏季节,因高温的影响移栽成活率低.根系发达的试管苗露天栽植也能成活.试管苗移栽入圃的适期为茎顶开放、主茎伸长的生长旺盛期.此时的成活率高.更多还原

【Abstract】 On the medium of an ametiorative MS+BA2mg/l ( the same below) + IAA0.05 + LH500 or ameliortive MS+BAI + N AA0.01+LH500, the stem tips of hawthorn which consists of terminal hud, a Xillary hud and mixed bud gathered in winter, spring or mid summer and autumn could be ail successfully induced to differentiate fascided bud by the treatment at 0-5℃ for 2-7 days.A seasonable time for test-tube seedling transplanted in nursery is the exuberant stage when shoot apex come into bloom and main stem elongates, and the survival rate at this time is high. Under the cowdition of suitable temperature and humidity, sufficient illumination is the main factor for survival of the test-tube seedling transplantation. Manure and fertilizer application can increase the survival rate of transplantation and promote the seedling grow sturdily. In the hight of summer, the survival rate of transplantation is low due to the influence of high temperature. The test-tube seedling of well-developed root system could also survive transplant-ing in open ground.更多还原