嫁接促活剂对黄瓜嫁接苗愈伤过程、^(32)P和^(14)C的吸收和运转的影响

EFFECT OF GRAFT PROMOTING AGENT ON HEALING PROCESS OF GRAFT UNION,ABSORPTION,TRANSPORTATION OF 32 P AND 14 C

３２Ｐ和１４Ｃ示踪试验结果表明，嫁接促活剂可使砧木吸收３２Ｐ的量比对照增加１倍，使砧木吸收的３２Ｐ运到接穗或使接穗同化的１４Ｃ运到砧木比对照提早２ｄ，并且明显提高了３２Ｐ和１４Ｃ的输出量及比例，明显促进接口愈伤组织的形成和维管束的连接，提高了嫁接成活率。

Jinchun No.4 cucumber graft seedlings(the rootstock was China squash of black seeds)were used to study the effects of graft promoting agent on healing process of graft union,survival rate,absorption,transportation and distribution of 32 P induced from roots and 14 C from leaves.The results showed that the graft promoting agent accelerated the healing tissue production,connection of vessel and sievetube,increased the survival rate,total absorption of 32 P, total transportation and ratio of 32 P and 14 C. The agent caused 32 P to reach scion from rootstocks and 14 C to reach rootstocks from scion 2 days earlier than control.