EFFECT OF PLANT GROWTH REGULAT0Rs ON GROWTH AND YIEIED OF TOMATO (Lrcopersieoz cscuIentu,n 1'JsIt) VARIETIES

Abstract

The experiment was conducted at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka dunng the month of October 2007 to March 2008 to study the efThet of plant growth regulators on growth and yield of tomato. The experiment was laid out in Randoniiv.ed Coniplete Block Design with three replications. Three plant growth regulators ((1 NAA. GA and (1:4 IAA) and three tomato varieties (V 1 BARI Tomato 3, V

BARI Tomato 7 and V=BARl Tomato 9) were used in this experiment. In case of plant growth regulators the results of the experiment showed that G produced hIghest tiumber of branches per plant (12.37), number of flower per plant (91.51) and yield (126.6 t/ha). In case of tomato variety highest number of branches per plant (11.8]). number of flower per plant (91.66) and yield (99.74 hIm) produced Liv V2. For combined elièct V:G produced highest number of' branches per plant (15.23). number of flower per plant (105.2) and yield (151 .5 h/ha), which also gave the best economic return (3CR8.44). It may he concluded that IAA with BARI Tomato 7 produced the best result.