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Effects of Presoaking Seed of Pisum sativum L. in GA3, IAA, and Kinetin Solutions on Seedling Growth1


‘Early Alaska‘ pea seeds were soaked for 48 hr at 24 ± 1°C in solutions of gibberellic acid (GA3), indoleacetic acid (LAA), or kinetin at concn ranging from 0.01 to 100 mg/liter. The rate of imbibition under aeration and growth characteristics varied with hormones and concn. Increases in seed germination rate and growth, chlorophyll content, and photosynthesis of seedlings were observed with GA3 (at 0.1 mg/liter), IAA (at 0.1 mg/liter), and with kinetin (at 0.01 and 0.1 mg/liter) over controls.