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All Journal Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Nasrun .
Balai Penelitian Tanaman Rempah dan Obat
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Mathematics Other

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CHARACTERIZATION OF ENDOPHYTIC BACILLUS ISOLATED FROM SHALLOT ROOT AS BIOCONTROL OF BACTERIAL LEAF BLIGHT DISEASE Resti, Zurai; Habazar, Trimurti; Putra, Deddi Prima; ., Nasrun
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 1 (2018): MARCH, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (210.334 KB) | DOI: 10.23960/j.hptt.11831-38

Abstract

Characterization of Endophytic Bacillus Isolated from Shallot Root as Biocontrol of Bacterial Leaf Blight Disease. Endophytic Bacillus isolated from the roots of healthy shallots has potential as biological control agent of bacterial leaf blight (BLB) disease. Based on the in planta screening, four endophytic bacteria that capable of controlling BLB diseases from the group of Bacillus were obtained, such as Bacillus cereus P14, Bacillus cereus Se07, Bacillus sp. HI, and Bacillus sp. SJI. The aims of this study were to investigate the characteristics of endophytic Bacillus that capable of controlling BLB disease and to determine the characteristic that most responsible in the disease control. This study method was descriptive. The characteristics observed were production of antibiotics by paper disc method, production of salicylic acid by capillary electrophoresis, and root colonization by in planta method. Linear regression analysis was used to determine the characteristic most responsible in the disease control. The results showed that four endophytic Bacillus were capable of producing salicylic acid and colonizing the root, and three of them were also capable of producing antibiotic. Salicylic acid production varied ranging from 13.96 to 14.72 ppm mL-1. Three endophytic Bacillus were capable of producing antibiotic with inhibition zone of 16.25 to 20.25 mm. Endophytic Bacillus was able to colonize the shallot roots with a population of bacteria ranged from 3.20 × 105-6, 20 × 105 CFU g-1 root. Based on the correlation coefficient of linear regression analysis, the root colonization of endophytic bacteria played the role in decreasing BLB disease.
PENERAPAN METODE DEMOSNTRASI UNTUK MENINGKATKAN AKTIVITAS BELAJAR MATEMATIKA KELAS III SEKOLAH DASAR (F34210632), Thasmini; ., Nasrun; Chiar, M.
Jurnal Pendidikan dan Pembelajaran Khatulistiwa Vol 2, No 6 (2013): Juni 2013
Publisher : Jurnal Pendidikan dan Pembelajaran Khatulistiwa

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Abstract

Pembelajaran matematika di kelas III sekolah dasar, menjadi fenomenal, peserta didik yang usianya antara 7-8 tahun, dalam proses pembelajaran lebih banyak bersifat membimbing dengan tujuan meningkatkan keterampilan berkomunikasi. Pemilihan penerapan metode demonstrasi adalah untuk meningkatkan aktivitas belajar pada pembelajaran Matematika di kelas III SDN 27 Pontianak Timur. Metode yang akan digunakan dalam penelitian ini adalah metode deskriptif. Dari hasil penelitian diketahui bahwa perencanaan pembelajaran dengan metode demonstrasi dapat meningkatkan aktivitas belajar pada materi menentukan bilangan pada garis bilangan pada mata pelajaran Matematika di kelas III SDN 27 Pontianak Timur. Hal ini dapat dilihat dari skor yang diperoleh pada tiap-tiap komponen mengalami peningkatan antara Siklus I dan Siklus II. Kata Kunci: Metode Demonstrasi, Meningkatkan, Hasil Belajar Abstrac: Mathematic Learning at element School Claas III, being phenomenal , the student s in rang 7-8 years old, in learning proses is more characterized as guidence with the purpose to increase communication skill. The selection of application of demmonstration method is to increase study activity in Mathematic learning at class III SDN 27 East Pontianak. The method which is used in this research is descriptionve method. From the result of the research shows that the lesson plan with the demonstration method is able to incerase study activity in material determining number at number line in Mathematic Lesson class III SDN 27 East Pontianak. It can be seen from the score acquired in each components increase between Cycle I and Cycle II Keywords: Demonstration Method, Increasing, Study Result.
Co-Authors Apiek Gandamana Deddi Prima Putra M. Chiar Sorta Simanjuntak, Sorta TRIMURTI HABAZAR YUSNADI . Zurai Resti