IBONE   05434
INSTITUTO DE BOTANICA DEL NORDESTE
Unidad Ejecutora - UE
artículos
Título:
Effects of chlorocholine chloride and paclobutrazol on cassava (Manihot esculenta Crantz cv. Rocha) plant growth and tuberous root quality.
Autor/es:
RICARDO DANIEL MEDINA; BURGOS, ÁNGELA (EX AEQUO); DIFRANCO, VICENTE; MROGINSKI, LUIS; CENÓZ, PEDRO
Revista:
AgriScientia
Editorial:
Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba
Referencias:
Lugar: Mendoza, Argentina; Año: 2012 vol. 29 p. 51 - 58
ISSN:
0327-6244
Resumen:
The effects of chlorocholine chloride (CCC) and paclobutrazol (PBZ) foliar application on shoot and root parameters of cassava field-grown plants were studied (0, 45 and 90 mg active ingredient per plant). CCC and PBZ reduced total plant and first branch height, aerial fresh mass and tuberous root number. PBZ delayed branching and significantly decreased tuberous root fresh mass, while CCC caused no modifications in these parameters. In addition, CCC and PBZ treatments did not modify tuberous root diameter, while PBZ reduced tuberous root length significantly. Starch content was increased by both growth regulators at the lower dose, whereas dry matter content was increased only by CCC. In conclusion, CCC suppresses excessive vegetative growth, favours quality attributes and does not alter yield, hence improving harvest index. Although PBZ at a low dose increases the starch content and harvest index, its effects on other parameters are undesirable.