Effect of Presowing Treatments on Seed and Seedling Quality Attributes of an Endemic Agroforestry Tree Acacia nilotica subsp. cupressiformis (J.L. Stewart) Ali and Faruqi

Abstract

Acacia nilotica var. cupressiformis is an evergreen multipurpose leguminous tree species which is suitable to agroforestry purposes and mainly distributed in Western parts of Rajasthan in India particularly Pali and its adjoining areas. The species has many advantages, however the natural germination in wild is very limited due to its hard seed coat dormancy. The experiment was conducted to study the effect of presowing treatment on seed coat of A. nilotica var. cupressiformis seeds with ten treatments in Completely Randomized Block Design at ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali Marwar. The treatments were replicated thrice. Among the treatments, maximum germination and higher values was obtained in sand paper scarification with water soaking for 12hrs (T2) followed by mechanical scarification with sand paper (T1), acid scarification (50% for 20 min) (T7) and acid scarification (98% for 10 min) (T5). Further, the present study aims to initiate the research areas for conservation and utilization of A. nilotica var. cupressiformis in Western parts of Rajasthan and other parts of India.