Incidence of Internal Fruit Breakdown in Various Mango (Mangifera Indica L.) Cultivars

Incidence of Jelly Seed Disorder in ‘Tommy Atkins’ and ‘Van Dyke’ Mangoes as Affected by Agro-Ecological Conditions in Kenya

“…These results are similar to what have been reported previously that Murang'a, eutric Nitisol soils and Embu ferralic arenosal soils are generally low in Ca and therefore Ca:K ratio is low [21] and perhaps this explains the higher incidence of the jelly seed disorder in Murang'a and Embu counties as compared to Meru county. According to [8], jelly seed disorder is generally brought about by imbalance related to low Ca supply to the fruit and it is exacerbated by high N and K levels in the soil. It is reported that high levels of N and K in the soil affect the uptake of Ca by the plant subsequently leading to inadequate levels of Ca in the fruit and as a result, jelly seed disorder may occur [8,12].…”

“…According to [8], jelly seed disorder is generally brought about by imbalance related to low Ca supply to the fruit and it is exacerbated by high N and K levels in the soil. It is reported that high levels of N and K in the soil affect the uptake of Ca by the plant subsequently leading to inadequate levels of Ca in the fruit and as a result, jelly seed disorder may occur [8,12]. According to [8] mango grown on land that encloses former livestock corrals, the incidence of internal breakdown is significantly higher indicating that a nutrition imbalance is indeed involved.…”

“…However, many farmers are not able to access prime markets mainly due to quality issues [7,2]. One of the major challenges in production is a physiological disorder known as jelly seed which manifests itself through breakdown of tissues around the seed thus lowering the marketability of the affected fruits [8]. The losses due to this problem are estimated to be as high as 30% [9].…”