Applied gibberellin A4/7 increases ovulate strobili production in accelerated growth jack pine seedlings
- 1 September 1981
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Forest Research
- Vol. 11 (3) , 580-585
- https://doi.org/10.1139/x81-079
Abstract
Jack pine (P. banksiana Lamb.) seeds were sown in Oct., Jan. and March, and the seedlings were cultured under accelerated growth conditions in a greenhouse. At biweekly intervals, May 15 to Aug. 15, they were transplanted to a nearby nursery and sprayed with GA4/7 or GA4/7 + NAA [naphthaleneacetic acid]. The following spring a 4-fold increase in flowering was noted in trees receiving either of the GA4/7 treatments. Trees in the March sowing did not flower. The increased flowering was caused by GA4/7-mediated differentiation of lateral long-branch primordia into ovulate strobili.This publication has 7 references indexed in Scilit:
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