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Impact of fungal anthracnose on micromineral concentration in guava (Psidium guajava L.): a comparative study across districts of Punjab, Pakistan
Abstract
The present study was carried out to assess the differences in the concentration of two metals in various guava varieties affected by the fungal disease, Anthracnose. The study was carried out in five districts of Punjab, namely Sargodha (S1), Jhang (S2), Sheikhupura (S3), Sahiwal (S4), and Faisalabad (S5). Fruit samples were collected from both healthy and diseased plants of each variety, with five replicates, amounting to a total of 150 samples. The metal concentrations were quantified using Atomic Absorption Spectrophotometry. The concentration of zinc in healthy fruits varied from 0.212 to 0.256 mg/100g, but in diseased fruits varied from 0.136 to 0.218 mg/100g. Similarly, the value of iron in healthy fruits wavered between 0.212 To 0.28 mg/100g of fruit and that of affected fruits between 0.15 and 0.25 mg/100g of fruit. The range of manganese in healthy fruits is from 0.118 to 0.214 mg/100g of fruit and in anthracnose affected fruits this range was from 0.078 to 0.144 mg/100 g of fruit. These findings clearly suggest the reduction of the metal content in the diseased guava fruits
