Cocyam performance cultivated under different roofing materials

Abstract

The study aimed to evaluate the performance of cocoyam grown under differents roofing materials. The treatments consisted in the cultivation of tannia under five different environments: 1- no shading (control); 2- shade screen of 30%; 3- shade screen of 50%; 4- agricultural film of 150 ? and 5- anti-hail screen 18%. We used the experimental randomized block design with eight replications. Were evaluated aerial and underground part characteristics and determined the SPAD index. Best results of aerial and underground parts of characteristics were obtained in plants grown under anti-hail screen 18%, without differ from the shade screen of 50%. In such environments, the highest SPAD index values were also recorded showing that the content can be a good indication of the state of nitrogen plants and productivity of rhizomes and leaves. The use of anti – hail screen 18% and shade screen of 50%, in this order of preference, are indicated for coverage of the taioba plants.