Effects of Indole Butyric Acid (IBA) and Naphthalene Acetic Acid(NAA) on Softwood Cutting of Cassia surattensis Burm.f.
[Objective] The aim was to provide the theoretical basis for fast propagation of Cassia surattensis Burm. f.. [Method] With semilignified branches of 2-year-old C. surattensis, that haleness and no diseases and pests as the materials, and treatment with clean water as CK, the effects of 250, 500, 1 000 mg/L indole butyric acid (IBA) and 250, 500, 1 000 mg/L naphthalene acetic acid( NAA) on survival rate, plant height, average rooting number and root length of shoot were studied. [Result] The survival rate, plant height, average rooting number and root length of branches in treatment with IBA and NAA were all higher than those of CK, and the survival rate of branches in treatments with IBA at different concn. were all higher than that in treatment with NAA at different concn. In the treatment with 500 mg/L IBA, the survival rate of branches was the highest ( being 20% higher than that of CK) , the plant height of survival branches was the highest (33.5 cm, and being 15.87 cm higher than that of CK), and the root length was the longest (14.53 cm, being 195.93% longer than that of CK). [Conclusion] Treatments with IBA and NAA all could improve the survival rate of branches, plant height, average rooting number and root length of cutting branches of C. surattensis, and the treatment effect with 500 mg/L IBA was the best.
国家科技期刊平台
NSTL
万方数据
维普
