EFFECTS OF DIFFERENT MECHANICAL SCARIFICATION ON THE GROWTH AND DEVELOPMENT OF CROTALARIA RETUSA (RATTLE WEED) AT DOGWOM FARM NVRI, VOM

B. A. Sajo, S. E. Yachim

Abstract


The study of pasture has been reported in Nigeria for livestock production on a certain effectiveness of mechanical scarification on the growth and development of rattle weed (Crotalaria retusa) to propose an effective and practical method of breaking seed dormancy. Seeds were collected on 12th of May 2016 from Dagwom Farm of NVRI, Vom and subjected to different mechanical method of scarification; abrasive, heat in 750C for 5mins, soak in cold water for 24hours, hot water for 75°C for 5mins and control. The parameters were measured and counted in treatment per replicates; plant count, plant height, stem girth and leaf area. The germination rate and growth was observed on weekly for the period of 8 weeks. Cold water 24hours and hot water 75°C were scarified to improve their germination, and the germination sign up within 6th to7th days respectively on the experiment, and between 12thand 15th weeks seeds treated with cold water for 24hours and hot water for 75°C in 5mins responded positively to all parameters. Hot water and Cold water for 24hours showed significant difference (P<0.05) in all parameters than other treatments, Hot water for 150C Cold water for 24hours is the best recommended for the production of rattle weed (Crotalaria retusa).


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