2010•Unpublished venueRequires access
Effects of plant growth regulators on seed germination and seedling growth of Dalbergia odorfiera Chen.
Jianmei Yu, LI Fu-shen, Xiaolu Liu, Linghui Wang, Yan Zhou, Gui-E Li, Yuchan Chen, Jing He
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Abstract
The present experiment has been conducted to study the effects of different kinds and concentrations of plant growth regulators(GA3,6-BA,IBA) on seed germination and seedling growth of Dalbergia odorfiera Chen in order to improve its seed germination rate and seedling growth.The results showed that seed germination rate and germination energy of Dalbergia odorfiera Chen treated with plant growth regulators(GA3,6-BA,IBA) were greatly improved,but the pre-ger-mination was not affected.The treatment GA3(50 mg/L) showed the best effects on the improvement of germination rate,while the treatment 6-BA(80 mg/L) showed the best effects on improvement of seed germination energy.Different concentrations of GA3 and 6-BA could promote seed germination index,but treatment IBA(50 and 80 mg/L) played contrary roles.Different concentrations of PP333,6-BA,GA3,NAA and IAA promoted plant height and growth of ground stem of Dalbergia odorfiera Chen seedling.PP333 restrained normal growth of seedling height and enhanced the diameter of basal part.