EFFECT OF DIFFERENT TYPES OF PRIMING ON THE SEED GERMINATION, VIGOUR AND SEEDLING PARAMETERS OF GRASS PEA

The pot experiments were carried out on grasspea in Rabi season during 2013 to 2014. The experiments were conducted to the effect of different types of priming (GA₃, lemon juice and tamarind leaf extract) on germination, vigour and seedling parameters of grasspea seed. The experiments were done with cultivar, BARI grasspea-1 with three priming materials: gibberellin, lemon juice and tamarind leaf extract. During Rabi season 2013 to 2014, three concentrations of gibberellins (10, 20 and 30 ppm), three concentrations of lemon juice (2, 4 and 6 %), three concentrations of tamarind leaf extract (0.05%, 0.1% and 0.15%) with two priming time duration: 6 hours and 12 hours with control. G₂H₆ gives height germination index but G₁H₁₂ is similar to G₂H₆ and T₂H₆ gives height speed of germination but G₁H₁₂ is similar to T₂H₆. G₁H₁₂ gives height vigour index and T₃H₁₂ gives height seedling dry metter but G₁H₁₂ is similar to T₃H₁₂. Priming in gibberellin 10 ppm for 12 hours is the best for grasspea.