| dc.description.abstract | The effect of foliar application of cytokinin (benzyl-adenine, 150mgL−1) and gibberellin
(GA4 +GA7, 150mgL−1) on growth and flower development of 5-year-old plants of two jojoba
clones was studied. The plant growth regulators were applied on October 5, 1999 (spring)
and the plants were evaluated 120, 240 and 360 days after application. Shoot length, total
number of nodes and number of nodes with branching were statistically different between
clones but not between the growth regulator treatments.
The total number of flowers on both clones was significantly increased by treatment with
benzyl-adenine (BA) and significantly reduced by treatment with gibberellin. The seed yields,
evaluated 180 days after application, were not statistically different from the control due
to an increase in flower abortion. One clone treated with gibberellin showed a significant
decrease in number and weight of seeds, the other did not.
Histology of axillary buds revealed that BA application on one clone (4.11.32) enlarged the
flower meristem, differentiating multiple flower production. | |
