摘要
[目的]研究土沉香扦插和嫁接技术。[方法]分别对5年生、15年生及30年生母树的插穗和接穗在早春与晚秋2个不同时间进行扦插和嫁接,研究不同浓度(1 000、1 500、2 500 mg/L)下不同生长调节剂(IAA、IBA、NAA、ABT)对不同成熟程度的穗条(嫩梢、中等梢及老熟梢)处理后,其插穗和接穗的成活率,同时研究大树嫁接的不同砧木株高(50、80、100 cm)条件下老熟梢嫁接的成活率,并对土沉香扦插和嫁接2种无性繁殖方式的成活率进行比较。[结果]使用1 500 mg/L IBA处理穗条的成活率高于其他生长调节剂;老熟梢成活率高于嫩梢及中等梢;土沉香秋季扦插与嫁接的成活率高于春季;在大树嫁接中,当砧木株高100 cm时,插穗的成活率最高;土沉香穗条嫁接相比较扦插成活率更高。[结论]土沉香无性繁殖中采用嫁接方式,并选择老熟梢进行嫁接,在进行大树嫁接时,选择株高100 cm的砧木。
[Objective]To study the cutting and grafting technology of Aquilaria sinensis.[Method]The cutting and grafting of 5 years old、15 years old and 30 years old Aquilaria sinensis(Lour.)Spreng in spring and autumn was studied,and the scions surviving rate of different lignification degrees(young shoots,medium shoots and mature shoots)in different concentrations(1000,1500,2500mg/L)of different growth regulator treatments(IAA、IBA、NAA、ABT)was compared.Meanwhile,the survival rate of mature shoots under different rootstock height was also studied.[Result]The survival rate of IBA treated with 1500mg/L concentration was higher than that of other growth regulators;the survival rate of semi-lignified mature shoots was higher than that of young shoots and medium shoots;the cutting and grafting survival rate of Aquilaria sinensis(Lour.)Spreng in autumn was higher than that in spring;the survival rate of the cuttings was the highest when the rootstock height was 100cm in mature tree grafting;the grafting was higher survival rate than cuttings.[Conclusion]It is suggested that grafting methods(choose the mature shoots)should be adopted in the vegetative propagation of Aquilaria sinensis(Lour.)Spreng.It is better to choose the rootstock height of 100cm in the mature tree grafting.
作者
袁志永
蔡楚雄
郭韵
董辉
YUAN Zhi-yong;CAI Chu-xiong;GUO Yun(Dongguan Botanical Garden, Dongguan,Guangdong 523086;South China Botanical Garden, Chinese Academy of Sciences, Guangzhou,Guangdong 510650)
出处
《安徽农业科学》
CAS
2019年第1期115-117,126,共4页
Journal of Anhui Agricultural Sciences
基金
东莞市科技局项目"莞香传统高效结香技术与优良品种选育研究"(201550720100019)
东莞市科技局项目"广东省土沉香资源收集和优良品种选育"(2017A030303060)
关键词
土沉香
无性繁殖
生长调节剂
母树年龄
季节
大树嫁接
Aquilaria sinensis(Lour.)Spreng
Vegetative propagation
Growth regulators
Seed-tree age
Seasons
Mature tree grafting
