Effects of chlorocholine chloride and paclobutrazol on cassava (Manihot esculenta Crantz cv. Rocha) plant growth and tuberous root quality

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Abstract

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.

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APA

Medina, R., Burgos, A., Difranco, V., Mroginski, L., & Cenóz, P. (2012). Effects of chlorocholine chloride and paclobutrazol on cassava (Manihot esculenta Crantz cv. Rocha) plant growth and tuberous root quality. AgriScientia, 29(1), 51–58. https://doi.org/10.31047/1668.298x.v29.n1.2799

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