PENGARUH PEMBERIAN ZAT PENGATUR TUMBUH (ZPT) TERHADAP PERTUMBUHAN STUM MATA TIDUR KARET (Hevea brasiliensis Muell Arg.) KLON IRR 112

Abstract

This study aimed to assess the effect of plant growth regulator on the growth of
the eye stum IRR rubber bed 112. This research was conducted in the village of Sungai
Rengit, District Talang Kelapa, Banyuasin Regency, Sumatera Selatan Province. The
study was conducted from May 2014 through the month of August 2014. This study used
a randomized block design (RBD) with 6 treatments and 4 replications. The treatments
studied were: B0 = 0 ml / Control, B1 = 4 ml / l of water, B2 = 8 ml / l of water, B3 = 12
ml / l of water, B4 = 16 ml / l of water, and B5 = 20 ml / l of water. Each treatment
consisted of 10 plants, the sheer number of plants that diteiti much as 240 plants (poybag)
for a total of as many as 24 treatments and replications treatment. Each unit (unit)
treatment trials, there are 3 (three) plant sample. Parameter observation that the speed of
growth of shoots (hst), shoot length (cm), number of petiole (strands), the percentage of
seedlings grown (%), weight of wet berangkasan plant (g), berangkasan dry weight of
plants (g), weight of wet roots departure (g), root dry weight berangkasan (g) and leaf
area (cm). Based on the results obtained it can be concluded that, an organizing treatment
concentration Grow 12 ml / 1 water tends to give the best results on shoot length, root
fresh weight and root dry weight.
Keyword : eye stum IRR rubber bed, plant growth regulator, Hevea brasiliensis Muell
Arg. klon IRR 11