Roots Density and Activity of Pomegranate Grown in Light Textured Soil of Semi-Arid Region

Root distribution pattern forms the crux for optimum utilization irrigation, fertilizers and other inputs. Therefore, root distribution in terms of root mass and root activity (i.e. root length) in pomegranate cv. Bhagwa was studies in light textured, shallow soil types on four year old trees of pomegranate. Roots were collected from six radial distances (0-30, 30-45, 45-60, 60-75, 75-90 and 90 cm and above) and seven depths (0-15, 15-30, 30-45, 45-60, 60-75, 75-90 and above 90 cm). The results revealed that total dry mass of feeder roots (diameter up to 5 mm) was 992.7 g plant-1 while cumulative root length (activity) was 2332.4 m plant. On weight basis, contribution of small roots (2 < to < 5 mm) in total weight was the highest whereas, on the basis of root length, contribution of very fine roots (< 0.5 mm ) was exceptionally high compared to other categories of the roots. Root growth or root activity of pomegranate plants was observed in 0-60 cm radial distance and 0-45 cm vertical distance. Therefore fertilizers and water may be applied in this zone for better utilization of inputs by the tree roots..