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All Journal Jurnal Penelitian Pertanian Terapan Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)
Martha L. Lande
Jurusan Biologi FMIPA Universitas Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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The Effect of PEG (Polyethylene Glycol) 6000 on Water Spinach (Ipomoea reptans L.) Growth Annisa Nurul Fathia; Tundjung T. Handayani; Zulkifli Zulkifli; Martha L. Lande
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 7 No. 1 (2020)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v7i1.7

Abstract

The purpose of this research was to know whether PEG 6000 can decrease the growth of water spinach. This study was conducted in a Completely Randomized Design with main factor is PEG with 3 levels ofconcentration: 0% w/v, 10% w/v, 20% w/v and 30% w/v with 5 repetitions. As parameters were plantheight, number of leaves, fresh weight, dry weight, and relative water content. Levene test, analysis ofvariance, and Tukey test were conducted at 5% level. The result shows that the plant period is positivelylinearly correlated with plant height at all PEG concentrations with different growth rates. Lowest growthrate at 20% and 30% PEG concentrations. PEG with 20% and 30% concentrations significantly decreasein the number of leaves, wet weight, dry weight, but there is no effect on relative water content. Theconclusion is water stress conditions will decrease the growth of water spinach.
STUDI VARIASI MORFOLOGI TANAMAN TOMAT GUNUNG (Lycopersicum esculentum Mill. var. cerasiforme) DI BANDAR LAMPUNG Fatimah Fitriyati; Ellyzarti Ellyzarti; Martha L. Lande
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 2 No. 1 (2014)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v2i1.104

Abstract

Tomat gunung merupakan tomat pertama yang didomestikasi yang berasal dari Peru dan Chili. Varietas tomat ini memiliki tekstur yang berair, ketika matang berwarna merah menyerupai buah ceri dan berukuran kecil dengan diameter sekitar 1,5 cm. Tujuan penelitian ini adalah untuk mengetahui variasi morfologi tanaman tomat gunung. Penelitian ini telah dilaksanakan dari bulan Mei sampai Agustus 2013. Tahap pertama adalah pengumpulan sampel buah tomat gunung di pasar yang ada di Bandar Lampung. Tahap kedua adalah penanaman biji tomat selama 3 bulan dan pengamatan morfologi batang, daun, bunga dan buah, pada saat tanaman berumur 3 minggu hingga berbuah. Data yang diperoleh dianalisis secara deskriptif dan disajikan dalam bentuk tabel dan foto. Dari hasil pengamatan yang telah dilakukan, diperoleh morfologi batang bulat, beruas-ruas dengan permukaan yang kasar serta berbulu. Batang memiliki banyak cabang dan berwarna hijau kecoklatan. Daun tomat gunung tersusun majemuk menyirip dengan anak daun ganjil, berwarna hijau tua, permukaannya kasar dan berbulu, tepinya dengan toreh berlekuk dan bentuk daun memanjang, ujung daunnya runcing dan pangkal daunnya tumpul. Bunga tersusun majemuk, berbentuk bintang, zigomorf, mahkota berwarna kuning, dan kelopak berwarna hijau tua. Terdapat tiga tipe variasi buah tomat, yaitu bulat, bulat lonjong, dan bulat pipih.
STUDI KANDUNGAN PROTEIN DI COLUMELLA, LOCULAR CAVITY dan PERICARP WALL SELAMA PROSES PEMATANGAN BUAH TOMAT PLUM (Solanum lycopersicum L. var. roma) Indah Mayang Ika Permani; Zulkifli Zulkifli; Martha L. Lande
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 2 No. 1 (2014)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v2i1.105

Abstract

Tujuan penelitian ini adalah untuk mengetahui kandungan protein columella, locular cavity dan pericarp wall selama proses pematangan buah tomat. Penelitian ini dilaksanakan dalam rancangan acak lengkap dengan satu faktor utama yaitu tingkat kematangan, dan 6 level: tahap 1 = green, tahap 2 = breakers, tahap 3= turning, tahap 4 = pink, tahap 5 = light red, dan tahap 6 = full red dengan 6 ulangan. Parameter dalam penelitian ini adalah nilai tengah kandungan protein. Analisis ragam dan uji BNT dilakukan pada taraf nyata 5%. Kandungan protein diukur dengan metode Biuret. Kandungan protein tertinggi pada Columella terjadi pada tahap 1 (0,962 ± 0,054 mg/g jaringan) dan terendah pada tahap 3 (0,523 ± 0,053 mg/g jaringan). Kandungan protein tertinggi pada Locular Cavity terjadi pada tahap 1 (0,991 ± 0,074 mg/g jaringan) dan terendah pada tahap 3 yaitu 0,583 ± 0,073 mg/g jaringan. Kandungan protein tertinggi pada Pericarp Wall terjadi pada tahap 1 (1,066 ± 0,067 mg/g jaringan) dan terendah pada tahap 4 (0,547 ± 0,051 mg/g jaringan). Pola perubahan kandungan protein di columella dan locular cavity relatif mengikuti pola respirasi klimakterik. Sedangkan pericarp wall tidak mengikuti pola respirasi klimakterik. Oleh karena itu, dapat disimpulkan bahwa tahap 1 dan tahap 2 merupakan perioda praklimakterik, awal klimakterik terjadi pada tahap 3, dan puncak klimakterik terjadi pada tahap 5.
Effect of Kirinyuh Leaf Extract (Cromolaena odorata [L.] R.M. King & H. Rob) On Rice Paddy Growth (Oryza sativa L.) Variety of Mekongga in Drought Stress Condition Sarti Wahyuni; Martha L. Lande; Zulkifli Zulkifli; Tundjung T. Handayani
Jurnal Penelitian Pertanian Terapan Vol 18 No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i2.1235

Abstract

The purpose of this research was to know whether kirinyuh leaf water extract could improve the growth of mekongga varieties rice paddy under the condition of drought stress.This research was conducted at Botanical Laboratory of Biology Department Faculty of Mathematics and Natural Sciences University of Lampung from September to October 2017. The research was conducted in a 3 x 2 factorial experiment. Factor A was Polyethylene glicol 6000 with 3 levels of concentration: 0% w / v, 15% w / v, and 30% w / v. Factor B was kirinyuh leaf water extract with 2 concentration levels: 0% w / v and 2% w / v. As parameters were the mean of shoots length, fresh weight, dry weight, and the relative water content of rice seedling. Levene test, analysis of vaiance, and Tukey test were performed at 5% significant level. The results showed that water extract of kirinyuh leaves had no significant effect on shoot length, fresh weight, and dry weight of rice seedling, but influenced the relatife water content of rice seedling. From the result of research it was concluded that kirinyuh leaf water extract can not improve the growth of Mekongga rice paddy varieties at drougth stress condition
Efek Alelopati Ekstrak Air Daun Mangga (Mangifera indica L. Var. Arumanis) Terhadap Pertumbuhan Rumput Teki (Cyperus rotundus L.) Davina Nathania Prasetya; Zulkifli Zulkifli; Tundjung Tripeni Handayani; Martha L. Lande
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1506

Abstract

The purpose of this research is to know whether the aqueous extract of mango leaves(Mangifera indica L.) affect the growth of purple nutsedge (Cyperus rotundus L.). Thisresearch conducted at Botanical Laboratory of Biology Department Faculty of Mathematicsand the Natural Sciences University of Lampung from September to October 2017. Thisexperiments were carried out in a complete randomized design with the main factors beingaqueous extract of mango leaves with 5 level concentration : 0% w / v ( control), 5% w / v,10% w / v, 15% w / v, and 20% w / v and consist of 5 replications. Parameters measuredwere shoot length, fresh weight, dry weight, and relative water content. The Levene testdetermined the homogeneity of variance at 5% significant level. Analysis of variance andTukey HSD testis did at 5% significant level. The results showed that the concentration ofextract was negatively correlated with shoot length where the shoot length was decreasedsignificantly at 20% extract concentration. Total fresh weight was decreased significantly at20% and correlated linearly negative with extract concentration. Total dry weight wasdecreased significantly at 20% extract concentration. There was no significant effect onrelative water content. From this research, it concluded that aqueous extract of mangoleaves at 20% extract concentration was decreased shoot length, fresh weight and dry weightof purple nutsedge.
Pengaruh Ekstrak Air Rumput Teki (Cyperus rotundus) Terhadap Pertumbuhan dan Kandungan Klorofil Padi Gogo Varietas Inpago 8 Mia A. Agustin; Zulkifli Zulkifli; Tundjung T. Handayani; Martha L. Lande
Jurnal Penelitian Pertanian Terapan Vol 18 No 3 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i3.1508

Abstract

The purpose of this research is to know whether the aqueous extract of purple nutsedge(Cyperus rotundus) have an effect on the growth and chlorophyll content of upland riceseedling of Inpago 8 varieties. This research was conducted at Botanical Laboratory ofBiology Department Faculty of Mathematics and the Natural Sciences University ofLampung from September to October 2017. The experiments were carried out in a completerandomized design with the main factors being aqueous extract of purple nutsedge with 5 level : 0% v / v (control), 5% v / v, 10% v / v, 15% v / v, and 20%v/v. Parameters measuredwere shoot length, fresh weight, dry weight, relative water content, and total chlorophyllcontent of rice seedling. Homogeneity of variance was determined by the Levene test at 5%significant level. Analysis of variance and Tukey HSD test is done at 5% significant level.The results showed that the concentration of extract correlated quadratic with shoot lengthwhere the maximum shoot length was 3.9 cm at 10% extract concentration. Fresh weight andrelative water content maximum were 73.21 mg and 76% respectively at concentrations of14% and 10%. The minimum total chlorophyll content was 0.47 mg / g tissue at aconcentration of 11%. There was no significant effect on the dry weight of the seedling.From the results of the study, it was concluded that the extract of purple nutsedge at aconcentration below 14% was a growth stimulator, but it was an inhibitor of chlorophyllbiosynthesis.Keyword: Chlorophyll, Growth, Upland rice variety Inpago 8, Purple nutsedge
Co-Authors Annisa Nurul Fathia Davina Nathania Prasetya Ellyzarti Ellyzarti Fatimah Fitriyati Indah Mayang Ika Permani Mia A. Agustin Sarti Wahyuni Tundjung T. Handayani Tundjung Tripeni Handayani Zulkifli Zulkifli