SHADING LEVELS AND PLANT GROWTH REGULATOR FOR FORMATION OF SCHIZOLOBIUM AMAZONICUM COMPACT SEEDLINGS
| Autor: | Eliana D. C. Binotti, Flávio F. da S. Binotti, Bruna Z. Lucheti, Edilson Costa, Adriana H. Pinto |
|---|---|
| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Engenharia Agrícola, Vol 39, Iss 5, Pp 586-591 (2019) |
| Druh dokumentu: | article |
| ISSN: | 0100-6916 1809-4430 |
| DOI: | 10.1590/1809-4430-eng.agric.v39n5p586-591/2019 |
| Popis: | ABSTRACT Paricá (Schizolobium amazonicum) can be used for rehabilitation of degraded lands, timber manufacturing markets. However, for its planting, high-quality seedlings should be used. Thus, this study aimed to evaluate the effect of different types of paclobutrazol (PBZ) application and two shading levels on high-quality seedling production. As there was no replication of cultivation environments, we considered each one of them as an experiment. For each environment (35 and 50% shading screen), a completely randomized design was adopted, testing combinations of two types of PBZ application (direct seed immersion in 0.005% PBZ solution; substrate hydration with 0.005% PBZ solution; and 50% seed hydration and 50% substrate hydration; plus, a control), with five replications and five seedlings per plot. The environments were evaluated by analysis of groups of experiments. Seedling growth was evaluated. Under 50% shading, Paricá seedlings had better growth conditions. Application of 100% PBZ in substrate provided compact seedlings with larger dry root phytomass, besides being more practical. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|