Abstract
A study was conducted to evaluate yield performance of mango (Mangifera indica L.) genotypes in the Lake Victoria Crescent zone. The experiment was superimposed on a seven-year-old mango field with 36 genotypes laid out in a randomized complete block design, replicated thrice. Mango fruit set, fruit drop and yield were significantly (P < 0.05) differently among years and genotypes. The highest fruit set was recorded in 2015 and the lowest in 2014. Among genotypes, the maximum and minimum fruit set were observed in Koona and Pinero, respectively. The highest fruit drop was observed in Heidi followed by Keitt and MP1 genotypes. The highest yield of 59.6 kg/tree/year was recorded in Kate while Kensington pride genotype yielded least (3.5 kg/tree/year). In this study variation in mango yield was mainly due to varietal differences. The findings will aid in selecting mango genotype suitable for production in Lake Victoria Crescent agro-ecological zone.
Highlights
Mango (Mangifera indica L.) is among the most important fruit crop in the tropical and subtropical regions of the world
In terms of genotypes a significant (P < 0.05) difference in fruit set was observed between mango genotypes
Out of the 36 mango genotypes evaluated, differences in mango fruit set, drop and yield where exhibited due to varietal difference and variation in amount of rainfall received in the different years
Summary
Mango (Mangifera indica L.) is among the most important fruit crop in the tropical and subtropical regions of the world. Because of its importance in Uganda mango has been widely grown for several decades by smallholder farmers in their fields and near homesteads [4]. The tropical conditions in Uganda favour mango production but its yields are still low compared to other global mango producing countries such as India. In India, the average yield stands at 11.7 ton∙ha−1 [5] while in Uganda mango yields are still below 5.8 ton∙ha−1 [4] This is partly due to low yielding local mango cultivars which are traditionally grown by farmers with little or no improved management practices [6]. Most of the local mango cultivars are high in fibre content which makes them less attractive for processing and export market [7]
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