黄快杨试管苗生根及移栽成活率的研究

Rooting of tube seedlings of Populus simonii×P.deltoids cv. 'Huangkuai' and survival in transplantation

对黄快杨试管苗诱导生根和移栽进行试验研究,结果表明:以1/2MS+IBA0.05+NAA0.01为生根培养基,平均每株生根数为6.9个,根长为1.6 cm,根较粗壮,有侧根,较少产生愈伤组织,移栽后成活率较高。移栽基质分别采用珍珠岩(粗:细为1:1)、蛭石、蛭石:珍珠岩(1:1)、粗珍珠岩、细珍珠岩,其中,以珍珠岩作为基质的移栽成活率较高,尤以粗颗粒的珍珠岩基质最好,移栽成活率可达98.2%。

The rooting and transplanting of tube seedlings of Populus simonii x P. deltoids ev.‘Huangkuai＇ were researched. Results showed that the root number was 6.9 per individual seedling with 1.6cm root length, if the 1/2MS ＋ IBA0.05 ＋ NAA0.01 was used for culture medium. The roots were relatively coarse with lateral roots induced, and the survival of transplantation was high. The transplantation medium included perhte （coarse： fine was 1 ： 1 ）, vermiculite, perlite - vermiculite （ 1 ： 1 ）, coarse perlite, and fine perlite. The survival of transplantation was high ff the perlite was used for the medium, especially the coarse perlite medium（reached 98.2% ） .