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Agriculture, Biological Sciences & Forestry

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Pengaruh Waktu Perendaman dan Konsentrasi Giberelin (GA3) pada Pertumbuhan Benih Cemara Laut (Casuarina equisetifolia L.) Vici Kurnia Ayuningtyas; Muhammad Tahir; Made Same
Jurnal Agro Industri Perkebunan Volume 5 No. 1, Mei 2017
Publisher : Politeknik Negeri Lampung

Gibberellin (GA3) is a natural growth hormone and synthesis used to break dormancy and accelerate germination and growth processes. The purpose of this study is to determine the effect of gibberellin concentration (GA3), soaking duration, and the interaction between gibberellin concentration (GA3) and soaking duration on the growth of australian pine tree seed. The research was conducted in State Polytechnic of Lampung from October 2015 to February 2016. This research used Factorial Randomized Block Design (RBD). The first factor is the concentration of gibberellin (GA3) namely A0 (without GA3), A1 (1000 mg.l-1 GA3), A2 (1250 mg.l-1 GA3), and A3 (1500 mg.l-1 GA3). The second factor is the soaking duration of GA3 namely B1 (soaking for 3 hours), B2 (soaking for 6 hours), and B3 (soaking for 9 hours). The result showed that GA3 at concentration 1500 mg.l-1 increased germination, the percentage of germinated seeds, hypocotyl diameter, hypocotyl length, growth homogenity, and vigor of australian pine tree seed. Soaking duration for 9 hours can increase germination, the percentage of germinated seeds, hypocotyl diameter, hypocotyl length, growth homogeneity, and australian pine tree seed vigor. The interaction between GA3 concentration at 1500 mg.l-1 and the soaking duration for 9 hours increased the germination, the percentage of germinated seeds, hypocotyl diameter, hypocotyl length, growth homogeneity, and australian pine tree seed vigor.Â Â Keywords: Casuarina equisetifolia L., gibberelin, seed vigor, soaking durationPermalink:Â http://jurnal.polinela.ac.id/index.php/AIP/article/view/649

Pengaruh Konsentrasi dan Lama Fermentasi Urin Sapi sebagai Pupuk Cair pada Pertumbuhan Bibit Karet (Hevea brasiliensis Muell. Arg.) Vinda Nawang Sari; Made Same; Yonathan Parapasan
Jurnal Agro Industri Perkebunan Volume 5 No. 1, Mei 2017
Publisher : Politeknik Negeri Lampung

The aims of this research is to get the best concentration of cow urine as liquid organic fertilizer on rubber seed growth, to get the best fermentation time for cow urine as liquid organic fertilizer on the growth of rubber seedlings, and get the best interaction between concentration and cow urine fermentation as liquid organic fertilizer on the growth of rubber seedlings. The experiment was conducted in teaching farm of State Polytechnic of Lampung from January 2016 until June 2016. The treatments arranged in Randomized Block Design (RBD) with the factorial pattern consisting of two factors. The first factor was the concentration of cow urine, consisting of four levels: 15 cc.l-1, 30 cc.l-1, 45 cc.l-1 and 60 cc.l-1. The second factor was the duration of cow urine fermentation, consisting of five levels: 0 day, 7 day, 14 day, 21 day and 28 day. Rubber seedlings were used as plant indicator. Observations included plant height, number of petiole, stem diameter, stem girth, and dry weight of biomass. The results showed that the treatment of cow urine concentration had significant effect on plant height and number of petiole, but very significant effect on stem diameter, stem girth and dry weight of biomass. Likewise, the treatment of cow urine fermentation has significant effect on all observed variables except on the dry weight of biomass has a very significant effect. The interaction between treatment of cow urine concentration and cow urine fermentation did not significantly affect all variables except on dry weight of biomass had significant effect, i.e. cow urine concentration treatment of 45 cc.l-1 and fermentation of cow urine for 28 days resulted in dry weight of biomass higher rubber seedlings.Â Â Keywords: cow urine, fermentation, rubber seedlingsPermalink:Â http://jurnal.polinela.ac.id/index.php/AIP/article/view/651

Serapan Phospat dan Pertumbuhan Bibit Kelapa Sawit pada Tanah Ultisol Akibat Cendawan Mikoriza Abuskula Made Same
Jurnal Penelitian Pertanian Terapan Vol 11 No 2 (2011)
Publisher : Politeknik Negeri Lampung.

One of the disadvantages of oil palm development is the limitedness of fertile soil. A constraint faced by both big plantation and small holders is the high cost of crop maintenance. Around 60% of the total crop maintenance is used for fertilizing the crop. This study aims at finding out phosphate absorbtion and the growth of oil palm seedling with the addition of Arbuscullar Mycorrhizal Fungi (AMF) and different dosages of phosphate fertilizer. A factorial Complete Randomized Design with three replications has been used. The first factor was the addition of AMF consisting of three levels: M0=0 g AMF polybag-1, M1=5 g AMF polybag -1, and M2 = 10 g AMF polybag -1. The second factor was the addition of four levels of phosphate using TCP-36: P0= 0 g TCP-36 polybag-1, P =15 g TCP-36 polybag-1, P2=30 g TCP-36 polybag-1, and P3=45 g TCP-36 polybag-1. Results showed that the Application of 10 g AMF polybag-1was able to increase P-absorbtion and the growth of oil palm seeding such as fresh crown weight, dry crown weight, fresh root weight, dry and root weight. Application of 45 g TCP-36 polybag -1was able to increase the growth such as plant height, dry crown weight, fresh root weight, and dry root weight. Keywords: Arbuscullar Mycorrhizal Fungi, phosphate, and oil palm

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