Asian Plant Research Journal

An experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka during the period from October 2017 to April 2018. The present research was aimed to study effect of combinations of zinc and boron with fruit thinning on the quality seed production of tomato. There were four combination of zinc and boron viz. T₀ =Zn₀ kgB₀kg/ha, T₁=Zn₂ kg B_1.5 kg/ha, T₂=Zn₄kg B₂ kg/ha, T₃=Zn₆B_2.5 kg/ha and four levels of fruit thinning viz. P₀= control (without fruit thinning), P₁= 10 fruits were retained per plant, P₂=20 fruits were retained per plant and P₃ =30 fruits were retained per plant. The experiment was laid out in a Randomized Complete Block Design with 3 replications and there were altogether 48 plots. Application of micronutrients with fruit thinning significantly influenced the growth and seed yield of tomato. The highest seed yield (297.82 kg/ha) was found from T₃ and the lowest yield (260.69 kg/ha) was obtained from T₀. Due to the fruit thinning, the highest seed yield (337.41 kg/ha) was obtained from P₃ and lowest yield (190.69 kg/ha) was recorded from P₁. In case of combined effect, the highest yield (360.39 kg/ha) was found from T₃P₃ and lowest yield (180.39 kg/ha) was found from T₀P₁. So, application of Zn₆ kg B_2.5 kg/ha along with 30 fruits were retained per plant was the best for yield of tomato seed.