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Effect of GA on Penny Polygonum Cuttings Propagation in Water

2010; Henan Academy of Agriculture Sciences; Issue: 4 Linguagem: Inglês

1004-3268

Yajun Ren, Zhong Liu, Mei LuoYin, Wang Wu, Cheng Shuai, Xu YunNi, Zhou CuiLi,

Wood Treatment and Properties

Both stiff wood and twig of Penny Polygonum(Homalocladium Platycladpkkum) treated with different concentration gibberellin(GA)(0mg/L,50mg/L,100mg/L and 150mg/L)were used as cuttings to study the method of cutting propagation in water and the optimum GA concentration.The results showed that,GA could promote cutting rooting for Penny Polygonum;the rooting rates of both stiff woods and twig cuttings treated with 100mg/L GA were up to 97.5% and 100%,respectively,higher than other treatments significantly.The root system development indexes of stiff wood and twig cuttings treated with 100mg/L GA were up to 0.53 and 0.86,respectively,significantly higher than other treatments.Generally,the effect of the twig cuttings propagation in water was better than that of the stiff wood.So,for Penny Polygonum propagation in water,twig cuttings treated with 100mg/L GA for 6h could obtain the best effects.