Comparação do rendimento de 12 variedades de mandioca -manihot esculenta crantz em Nhacoongo e Umbelúzi

Abstract

The present work was carried out in the agrarian station of Umbelúzi (Maputo), and in the agronomic post of Nhacoongo (Inhambane) in order to compare the yield of 12 varieties of cassava cultivated in different soil and climatic conditions. It should be noted that this work was part of the research work of the national institute of agronomic research (inia). The experimental design used was a randomized complete block with 3 replications and 12 treatments. The spacing between blocks was 1 m and the isolation strip of the test site was 2 m. It should be noted that the analyzes were carried out based on the varieties and the grouping of the varieties into the three flavors (sweet, semi-bitter and bitter). Duncan. The main sources of variation for analysis were: location, flavor, local*flavor interaction, variety and local*variety interaction. The results revealed that there were significant differences in the two locations; in umbeluzi the tuber yield was relatively high ranging from 31.6 ton/ha to 0.9 ton/ha while in nhacoongo the yield was very low, ranging from 18.1 ton/ha to 1.4 ton/ha. were tms 42025, mz 89192 and mz 89105 with 24.4, 23.0 and 20.4 ton/ha respectively (average of the two locations)