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y, Yusran
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PERTUMBUHAN SEMAI JATI (Tectona grandis L.f) PADA APLIKASI BERBAGAI KONSENTRASI HORMON GIBERELIN DI PERSEMAIAN Adilah, Nur; y, Yusran; Taiyeb, Asgar
Jurnal Warta Rimba Vol 7, No 3 (2019)
Publisher : Universitas Tadulako

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Abstract

The problems that are still faced at this time include the lack of enviromentally sound cultivation technology to support teak growth rates quickly and efficiently. One of the efforts to overcome this problem is to use a Gyberelin (GA3) growth regulator, which isknown to accelerate plant growth, so that dwarf plants can grow taller in a relatively short time. The research aims to determine the effect of various concentration s of administration of Gyberelin (GA3) grawth regulators on teak seedlings (Tectona grandis L.f) in nurseries. This research uses a completely randomized design method consisting of four treatments, namely G0= (Control), G1= 100 ppm, G2= 200 ppm, G3= 300 ppm. The results of the research showed that the addition of various concentrations of Gyberelin hormone in the nursery had a significant effect o the height increase and increase in the number of teak seedling leaves, but it did not signficantly affect the diameter of teak seedlings. Treatment of Gyberelin (GA3) with a concentration of 300 ppm (G3) gave the best influence on teak growth in terms of height increase and number of leves compared to control treatment (G0), as well as concentration 0f 100 ppm (G1) and 200 ppm (G2).
PENGARUH PERBANDINGAN TANAH DAN KOMPOS DAUN BAMBU (Bambusa arundinacea) TERHADAP PERTUMBUHAN SEMAI TANJUNG (Mimusops elengi L) Rusdi, Erwin; w, warda; y, Yusran; Wahyuni, Dewi
Jurnal Warta Rimba Vol 7, No 3 (2019)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (245.626 KB)

Abstract

Bambusa arundinacea contains high of Phosporous and Potassium (P and K) elements, that have a high potential to be main material for compost. Both P and K are very importent in inproving soil quality and plant growth. The studywas conducted on January until march 2019 at Permanent Nursery of BPDAS Palu-Poso, Tadulako University, Central Sulawesi. The study was arranged by a Completely Randomized Design with four treatments, i.e. S0 = soil without bamboo leave compost; S1= 300 g  soil : 300 g compost; S2 = 400 g soil : 200 g compost; S3 = 450 g soil : 150 g compost. Each treatment are replicated on 7 replications. There are 28 experimental units. Growth parametres observed are seedling height, stem diameter and number of leaves, wet and dry weight of shoots and roots of seedlings, and seedling quality index. Result of study showed that bamboo leave compost significantly effect on Mimusops elengi  L seedling growt. Treatment S2 = 400 g soil : 200g compost might significantly increase tanjong tree seedling growth, as follows seedling height growth (4,16 cm), stem diameter (0,3 mm), leave numbers (3 leaves), shoot wet weight (1.36 g), root wet weight (0.26 g), shootdry weight (0.53 g), root dry weight (0.22 g), and seedling quality index of  0,05.