Distribution of root activity in young 'Alphonso' mango (Mangifera indica) trees as influenced by season and growth

摘要: Spatial distribution of root activity was studied using 32 p     soil injection technique in 8-year-old' Alphonso' mango (Mangifera indica L.) budded on 'Bangalora' rootstock    grown a loamy sand (Typic Haplustalf) belonging to 'Thyamagondlu' series. During the Jate rainy season the   bulk active roots (80%) confined 100 cm radial distance, out which 30% found at 50 distance. Substantial percentage 20 and  60 depths (41 and 46% respectively), whereas only 12% occurred 40 depth. winter (80-85%) uniformly distributed up lateral The increased with In summer 28% were distances, 52% 150 Root decreased depth (50,31 19% 20, respectively). There variation season, indicating that high coincided volumetric moisture content profile, particularly top 15 layer. intensity' preceded period shoot floral growth observed winter. very low. presence significant acitivity (40 - 70%) below despite clayey texture, hard dry consistency blocky structure probably due adequate these depths.