A field experiment was carried out at Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh, to assess the effect of different plant growth regulators on tomato during summer season 2011. Different plant growth regulators (PGR) viz. PGR = Control, PGR = 4-CPA (4-chloro phenoxy 0 1 acetic acid) @ 20 ppm, PGR = GA (Gibberellic Acid) @ 20 ppm and PGR = 4-CPA + GA3 @ 20...

Plant growth regulators (PGRs) are exogenously applied chemicals that alter plant metabolism, cell division, cell enlargement, growth and development by regulating plant hormones or other biological signals. For example, some PGRs regulate stem elongation by inhibiting biosynthesis of gibberellins or through releasing ethylene. PGR effects are widely studied and reported on barley (Hordeum vulg...

Over ajbz, I-yearperi'oda range of"ewplantgrowih regularors was tes!ed. or'Ihese onlyAl"G showed any realpromise a detailed report on Ihisprodwc!is avqi7ab/e elsewhere in !heseproceedi'rigs. Work on Pix coi!/71med Iha!short deterinmate culli'vars such as S40 are particularly sensi'ti^e 10 the mappropri'atoprogram apptrca!10n of PI:x, SI!ff'err'rigyie/d losses of between 5 i0 21% when PI::cis us...