THE RHIZOSPHERE PGPR GRAMINEAE APPLICATION ON THE GROWTH RED GINGER (Zingiber officinale Var. Rubrum)
Journal Title: Jurnal Pena Sains - Year 2017, Vol 4, Issue 2
Abstract
PGPR (Plant Growth Promoting Rhizobacteria) is a group of bacteria that colonize in the area of the rhizosphere. These groups of bacteria favor plant growth because they are able to mobilize and provide nutrients and phytohormones. The ability of the bacterial group can be utilized as a growth regulator in the red ginger nursery (Z. officinale Var Rubrum). This study aims to determine the optimal dosage of PGPR for the growth of red ginger seed (Z. officinale Var Rubrum). In this study, red ginger rhizome (Z. officinale Var Rubrum) was soaked with various concentrations of PGPR ie 0%, 25%, 50%, 75% and 100%. The results of this study indicate that soaking rhizomes using PGPR solution significantly influence the growth of red ginger seeds in the form of high seedlings, the number of shoots grows, the number of leaves and the mass of seedlings. A 25% dose has a better ability to boost the growth of seeds when compared to other doses.
Authors and Affiliations
Hesti Kurniahu
REVIEW π: WHAT IS THE DESCRIPTION OF STUDENTS' INTEREST IN PHYSICS?
This study was based on the potential of new methods in knowing students' interest in physics lessons. Interest in learning physics was the tendency and interest of students to learn the process and try to know and under...
PENGEMBANGAN E-LEARNING FISIKA MENGGUNAKAN PHET (PHYSICS EDUCATIONAL TECHNOLOGY) PADA MATERI POKOK DINAMIKA GERAK LURUS BERBASIS KETERAMPILAN BERFIKIR KRITIS
Tujuan penelitian ini adalah mengembangkan e-learning fisika menggunakan PhET (Physics Educational Technology) berbasis keterampilan berpikir kritis pada materi pokok dinamika gerak lurus. Kelebihan PhET antara lain memi...
PENGEMBANGAN PERANGKAT PEMBELAJARAN BERORIENTASI PENDEKATAN GUIDED DISCOVERY UNTUK MELATIHKAN KETERAMPILAN BERPIKIR KRITIS DAN KREATIF
Penelitian ini bertujuan untuk menghasilkan perangkat pembelajaran berorientasi Guided Discovery untuk melatihkan keterampilan berpikir kritis dan kreatif. Dilaksanakan dalam dua tahap yaitu pengembangan dengan model 4-P...
THE DEVELOPING OF SIMPLE PROPS BASED ON GUIDED INQUIRY TO IMPROVE STUDENTS’ CRITICAL THINKING SKILL’S
This research is aimed to 1) develop simple sciences instrument device based on a guided inquiry to improve the skill of the students on critical thinking. 2) to know the appropriateness of physic instrument based on gui...
CALCIUM OXIDE CHARACTERISTICS PREPARED FROM AMBUNTEN’S CALCINED LIMESTONE
Calcium oxide (CaO) and calcium carbonate (CaCO3) are widely used in industry. CaO and CaCO3 can be synthesized or derived from limestone. The purpose of this study to determine the characteristics of CaO calcined limest...