Growth Performance of One Year Old Seedlings of Ironwood (Eusideroxylon zwageri Teijsm. & Binn.) Varieties
Abstract: Four Eusideroxylon
zwageri Teijsm. & Binn. varieties had been described. A study on growth
performance of one-year old seedlings of E. zwageri varieties had been
conducted to study the comparison of shoot growth performance and survival
among E. zwageri varieties. The
varieties were exilis, grandis, ovoidus, and zwageri. The study was conducted
in Jambi, Indonesia for one year using complete randomized design. Four E.
zwageri varieties were used as factor with 6 replications. Each consists of 6
seedlings therefore, the total number of seedlings were 144. The results showed that survival and shoot
growth performance of E. zwageri seedlings were significantly different among
varieties. Stem height of E. zwageri seedlings was significantly different
among some varieties. The results related to stem diameter showed different
characteristics among E. zwageri seedlings, zwageri variety had the biggest
diameter. It was significantly different from ovoidus and exilis, but not
significantly different from grandis. The differences among E. zwageri
seedlings in shoot dry weight parameter were identical to the parameter of stem
diameter. The lowest value of branch angle belonged to zwageri. Based on Duncan
multiple range test, it was significantly different from other varieties except
grandis. Generally, zwageri shows the best growth performance among seedlings
of E. zwageri varieties.
Author: Bambang Irawan
Journal Code: jpkehutanangg120013
