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Muhammad Anwar Hadi
University of Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Preliminary Study of Mangrove Eco-Structures and Natural Regeneration at Gili Lawang, East Lombok, West Nusa Tenggara) Niechi Valentino; Andrie Ridzki Prasetyo; Muhammad Anwar Hadi
Jurnal Penelitian Pendidikan IPA Vol 9 No 1 (2023): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i1.4451

Abstract

Gili Lawang mangroves as a unique ecosystem, unstable, dynamic and complex. The purpose of this study is to determine the eco-structure and natural regeneration of the Gili Lawang mangroves as an initial study in sustainable mangrove forest management. This study used a systematic sampling method with random start, at 6 stations with a total of 60 plots. Seven types of mangroves were obtained, namely A. marina, B. cylindrica, B. gymnorrhiza, R. apiculata, R. mucronata, R. stylosa, and S. alba at the study site. The highest IVI was R. mucronata with a value of 79.34% (seedlings), B. gymnorrhiza with an IVI of 77% (saplings) and tree stage (96.2%). Canopy stratification is type C, D and E. The concentration of horizontal structures is in class 1 (10-16 cm). At the seedling growth stage H' was classified as moderate (1.33), E' was moderate (0.69), and R1 was low (1.13). At the stake level H' classified as Moderate (1.31), E' is moderate (0.67) and R1 is low (1.04) and at the tree level H' is classified as moderate (1.59), E' is high (0.82), R1 is low (0.95). The distribution of mangrove species in Gili Lawang was normally distributed with a distribution pattern of plant species generally clustered, except for S. alba at the sapling growth stage which were scattered randomly. The regeneration status of mangrove species in Gili Lawang is good in speciesA. marina, B. gymnorrhiza, R. apiculata,and R. mucronata, and sufficient/moderate on B. cylindrica, R. stylosa and S. alba.
Farmers' Perceptions of the Competence of Agricultural Instructors in Karang Sidemen Village Arifuddin Sahidu; Hayati Hayati; Muktasam Muktasam; Niechi Valentino; Muhammad Anwar Hadi
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.6137

Abstract

Extension workers have a big role in the success of farming activities in an area and can indirectly have a big influence on the welfare of farmers in particular and the success of agricultural activities in general. The aim of carrying out this research is to describe the relationship between farmers' perceptions of the competency of agricultural instructors and at the same time determine the variables that influence farmers' perceptions of the competency of agricultural instructors in terms of farmer characteristics, farming business characteristics and the quality of extension. This research uses an exploratory descriptive approach with a survey method using interviews and the help of questionnaires. The sample was determined by quota sampling, namely 4 people in each agricultural farmer group consisting of the chairman and active members. Data are presented on a Likert scale, and relationship analysis uses the Rank Spearman statistical test. The results of the analysis of respondents' perceptions of instructor competence in terms of personality (2.87), andragogic (2.60), professional (2.63), and social (2.64) variables were at medium criteria (2-3). The relationship between each variable of personal characteristics, farming characteristics, and quality of extension with respondents' perceptions of PPL competency shows a real relationship with the variables of farming experience, land area, market accessibility, land ownership status, extension materials, extension methods, and extension media, where The extension method and extension material variables have the highest correlation coefficient among the others, namely (0.642) and (0.513) which are classified as a strong relationship level (0.51-0.75) at a confidence level of 0.01%.
Co-Authors Andrie Ridzki Prasetyo Arifuddin Sahidu Hayati Hayati Muktasam Niechi Valentino