EFFECT OF SHADING CATTLEY GUAVA STOCK PLANT (PSIDIUM CATTLEYANUM SABINE) ON PROPAGATION BY CUTTINGS

Cattley guava is a native fruit of Brazil, of the Myrtaceae family with interesting farming perspective, mainly due to its good fruit quality and exotic flavor.
This work aim to evaluate the effect of shading cattley guava stock plant (Psidium cattleyanum Sabine) on the propagation by cuttings.
Half the cuttings of stock plant growth during 60 days under shade cloth giving 0, 30, 50 or 70% shade, were treated with 200 ppm of indolbutric acid (IBA) for 16 hours; the other half, received no treatment of IBA. The cuttings were rooted under intermittent mist for 85 days.
Stock plant shading increased percent rooting and decreased cutting diameter.
The rooting-potential of cutting from stock plant grown under 70% shade was increased compared to full sun (0% shade). Exogenous auxin application improved rooting of cutting from stock plant 0% shade, but was decreased rooting of cutting from stock plant 70% shade.
The changes induced by shading stock plants of cattley guava, allows to propagate the species by cuttings and that the best results are obtained at 70% shade.

International Symposium on Myrtaceae

J. Voltolini, J. Fachinello

https://doi.org/10.17660/ActaHortic.1997.452.9