Canopy architecture in cassava (Manihot esculenta Crantz) in tropical dry forest in Colombia

Abstract

The objective of the research was evaluated the influence of soil availability on the architecture of cassava canopy. The work was carried out in the tropical dry forest area of the state of Sucre, Colombia. Experimental plots were established in October 2015, records of plant height, number of branches, foliar insertion angle and branching at twelve months of age, low experimental design in randomized complete blocks, with factorial arrangement . As fixed factors the cassava variety (MCOL 2066, CM 4919-1, SM 1411 and SM 2775) and irrigation (complementary irrigation and without complementary irrigation) were produced. Foliar insertion patterns favored by the absence of irrigation were found, being these of type plagiófilos in the superior third and planificadores in the middle and inferior thirds, what allows greater efficiency in the capture of the radiation. The height of the plant was influenced by the water supply, evidencing the superior growth around 17.9% under the use of a sheet of 17 millimeters of irrigation during the first months of the crop growth. The irrigation factor promotes in a differentiated way the architectural response of the canopy.

Keywords

• Ángulo de inserción
• ramificación
• altura de planta.