Effect of A seed borer, Bruchidiusuberatus, associated With Viability and Germination of Acacia nilotica seeds, Sinnar state- Sudan

Abstract

The study was aimed to investigate the effect of B. uberatus on viability and germination of A. nilotica seeds and count the percent of infestation on field and store . A total of ten sample plots were been taken from each of the three forest, Abujeily, Eljaaire and Jalgany forest with an area of each comprising one hectare. One kilogram were been collected from each plot of A. nilotica seeds randomly .The seeds collected from forest floor and standing trees on April 2019. Collected samples from the stand trees to identify the percent of the infestation on the Pods, these samples from the stand trees to identify the percent of the infestation on the pods. The study showrd that the infestation impact and decrease the seed germination number, seedling height, root length, diameter and number of leaves, the study shown that the infestation started from the field, The degree of infestation seeds by the beetle B. uberatus on standing trees was 11% on the pods from Abu jeily forest, 9.4 % in Eljazaire forest and 8.2% in Jalgany forest on the standing trees of collected seed whereas on the forest floor the degree of infestation by B .uberatus. on pods was Jalgany forest 26.8 %, Eljazaire forest 23.7 % and Aujeily forest 22.0 % . in the store 76.4% had infested from the store samples