Exploration and Morphological Characterization of Aren (Arenga pinnata Merr) Plants in Luhak District, 50 Kota Regency

Aren palm (Arenga pinnata Merr) belongs to the palm tribe. The problem that is often encountered in aren palm plants is the low productivity of aren palm plants, this is allegedly because the seeds used are not superior seeds and cultivation techniques that are not yet appropriate. The low production of plants is thought to be due to the low knowledge of the community on the use of superior aren palm planting materials, where the cultivated aren palm is not considered superior properties, including the diversity of aren palm species that grow wildly is still high in one forest land, unclear identity of seeds used by farmers. Exploration is the first step in finding germplasm of aren palm plants that have the expected traits through breeding programs so that it is expected to be one of the solutions for the development of aren palm plants. This research will be conducted from May to October 2023 in community-owned aren palm plantations in 50 cities. The purpose of this research is to characterize the morphology of Aren plants in District 50 Kota and to see the level of diversity of aren palm plants in the area. The research method was survey method, with purposive sampling. The data collection technique is to observe the morphological parts of the plant in each sample. The data obtained were analyzed descriptively, while for the analysis of similarity the calculation of the NTSYS Ver 2.02 program was used. The results of the study obtained 4 clusters of palm plants from 3 villages namely Nagari Sungai Kamuyang, Sikabu-kabu and Mungo. Researchers obtained 15 samples of aren palm plants characterized by 19 characters, namely 10 characters have wide variability and 9 characters have narrow variability with a level of diversity ranging from 14% - 47%. &nbsp

THE EFFECT OF USING PARAGRAPH HAMBURGER STRATEGY ON STUDENTS’ WRITING ABILITY IN NARRATIVE PARAGRAPH OFTHE FIRST YEAR AT MA DAREL HIKMAH PEKANBARU

This research was conducted based on the problems faced by the students in learning english especially in writing narrative paragraph. Based on the fact, the students had problems and difficulties in writing narrative paragraph. The problems were : some of the students were not able to find the ideas, they were not able to wwrite generic structures, they were not able to write a good paragraph in term of mechanic, etc. So, the researcher was interested in carrying out the research about these problems. The objectives of the research were to find out the effect of using paragraph hamburger strategy on students’ writing ability in narrative paragraph of the first year at MA Darel Hikmah Pekanbaru. This research had three major formulation of the problems, how is students’ ability in writing narrative paragraph taught by using paragraph hamburger strategy, how is students’ ability in writing narrative paragraph taught without using paragraph hamburger strategy, and Is there any significant difference ability of students in writing narrative paragraph between students who are taught by using paragraph hamburger strategy and those are taught without paragraph hamburger strategy of the first year at MA Darel Hikmah Pekanbaru. The research design in this research was a quasi-experimental design. The writer used pre-post-test design and took two classes as sample; one class was an experimental group and one class was a control group. Each class or group consisted of 22 students. The technique of collecting data was the written test. The technique of data analysis used Independent Sample T-test formula by using SPSS I7 Version. Based on the data analysis, the writer had concluded students’ writing ability in narrative paragraphtaught by using paragraph hamburger strategy is higher than those taught without using paragraph hamburger strategy. It can be seen through score of pre-test to post-test from control group, increased 3.59 only and score from pre-test to post-test of experimental group increased 12.45. As a result, there is a significant difference result between andusingparagraph hamburger strategy on students’ writing ability in narrative paragraph of the first year at MA DarelHikmahPekanbaru.It can be seen that tobtained is bigger than ttable with df=40. In to= 5.269 is bigger than tt= 2.02 (at level of 5%) and tt= 2.72 (at level of 1%); 2.02 ≤ 5.269 ≥ 2.72, it means that Ha is accepted and Ho is rejected

Perbandingan Pengaruh Latihan Lari Melewati Bilah Dengan Latihan Lari Mengangkat Paha Terhadap Peningkatan Power Tungkai Pada Siswa

Penelitian ini bertujuan untuk mengetahui apakah ada perbedaan pengaruh latihan lari melewati bilah dengan latihan lari mengangkat paha terhadap peningkatan power tungkai pada Siswa SMP Negeri 3 Kawali, sesuai dengan tujuan penelitian di atas, maka penulis menggunakan metode eksperimen. Populasi dan sampel  penelitian ini adalah siswa  putra kelas VIII SMP Negeri 3 Kawali yang berjumlah 58 orang, dari populasi tersebut diambil sebagian untuk dijadikan sampel dengan yaitu sebanyak 30 orang siswa dengan menggunakan teknik acak. Penelitian yang digunakan sebagai pengumpul data adalah tes standing broad jump, Adapun hasil pengolahan data dalam uji hipotesis diperoleh hasil sebagai berikut; 1. Latihan lari melewati bilah memberikan pengaruh yang signifikan terhadap peningkatan power tungkai pada siswa SMP Negeri 3 Kawali. Hal ini terbukti dengan diperolehnya hasil penelitian, yang menunjukkan bahwa latihan lari melewati bilah memiliki nilai t hitung 3,06  lebih besar daripada t-tabel (1,70) pada tingkat kepercayaan 0,05 dengan dk= n1 + n2 - 2= 28. 2. Latihan lari mengangkat paha memberikan pengaruh yang signifikan terhadap peningkatan power tungkai pada siswa SMP Negeri 3 Kawali. Hal ini terbukti dengan hasil penelitian, proses latihan lari mengangkat paha memiliki nilai t hitung 2,27 lebih besar daripada t-tabel (1,76) pada tingkat kepercayaan 0,05 dengan dk= n1 + n2 - 2= 28. 3. Tidak terdapat perbedaan pengaruh antara latihan lari melewati bilah dengan lari mengangkat paha terhadap peningkatan power tungkai pada siswa SMP Negeri 3 Kawali, dimana hasil penghitungan dan uji signifikansi dengan menggunakan uji rata-rata dua pihak yaitu uji-t, diperoleh t-hitung 1,35 yang lebih kecil dari t-tabel (1,70) pada tingkat kepercayaan 0,95 dengan dk = 28.This study aims to determine whether there was a difference in the effect of running through the bar with running exercise lifting the thighs on the increase in leg power in students of Junior High School 3 Kawali. In accordance with the research objectives above, the authors use the experimental method. The population and sample of this study were 58 male students of class VIII Junior High School 3 Kawali, and from this population a part of which was taken to be the sample by as many as 30 students using random techniques. The research used as data collector is the standing broad jump test. The results of data processing in hypothesis testing are as follows; 1. Running through blades has a significant effect on increasing leg power in students of Junior High School 3 Kawali. This was proven by the results of the research, which shows that the training to run through the bar has a value of t count 3.06 greater than the t-table (1.70) at a confidence level of 0.05 with dk = n1 + n2 - 2 = 28. 2. Running exercise to lift thighs has a significant effect on increasing leg power in students of Junior High School 3 Kawali. This was evidenced by the results of the study, the process of running training to lift the thighs has a t value of 2.27 greater than the t-table (1.76) at a confidence level of 0.05 with dk = n1 + n2 - 2 = 28. 3. No There is a difference in the effect of running through the bar with running lifting the thighs on the increase in leg power in Junior High School 3 Kawali students, where the results of the calculation and significance test using the two-party average test, namely the t-test, obtained a t-count of 1.35 which smaller than t-table (1.70) at a confidence level of 0.95 with dk = 28

Effects of Storage by Cryopreservation on Types and Duration of Cryopectant Soaking With Different Conditions of Seeds on the Growth of Mangosteen Seeds (Garcinia mangostana L)

Effect Storage In Criopreservasi On Type And Old South Crioprotektan Different Conditions Of Seeds Against Growth of Mangosteen Seeds (Garcinia mangostana L). The aim of the study was to determine the type, duration of soaking and the different conditions of mangosteen seeds and their interaction with the growth of mangosteen seeds (Garcinia mangostana L). This research was carried out at the Laboratory of Applied Sciences in Seed Technology of Labuhanbatu College of Agricultural Sciences (STIPER), starting March to July 2018, using factorial randomized block design with 3 treatment factors namely cryoprotectant type, cryoprotectant immersion and mangosteen fruit flesh. Parameters observed were number of shoots (fruit), shoot height (cm), root length (cm), and sprout dry weight (g). The results showed that the highest application of the parameters was the use of non-fruit flesh with cryoprotectant PVS2 and 180 minutes soaking time. The results of the research were used to develop mangosteen seed storage for the needs of the community, especially mangosteen farmers in Indonesia

EFEKTIVITAS PELAKSANAAN PERATURAN DESA TENTANG PENGELOLAAN MANGROVE SEBAGAI RELEVANSI SUSTAINABLE DEVELOPMENT

Penelitian ini bertujuan untuk mengetahui efektivitas Peraturan Desa Rewataya Nomor 01 Tahun 2013 tentang Pengelolaan Mangrove ditinjau dari faktor hukumnya; faktor penegak hukum; faktor sarana atau fasilitas yang mendukung penegak hukum dan faktor masyarakat serta relevansi Peraturan Desa Rewataya Nomor 01 Tahun 2013 tentang Pengelolaan Mangrove dengan konsep dan prinsip-prinsip sustainable development. Hasil penelitian menunjukkan bahwa: Pertama, efektivitas Peraturan Desa Rewataya Nomor 01 Tahun 2013 tentang Pengelolaan Mangrove ditinjau dari faktor hukumnya dikatakan efektif karena sesuai dengan persyaratan yuridis yang ada; ditinjau dari faktor penegak hukum tidak efektif disebabkan tidak berfungsinya penegak hukum di Desa Rewataya; ditinjau dari faktor sarana atau fasilitas yang mendukung penegak hukum tidak efektif dikarenakan tidak adanya sarana atau fasilitas untuk mendukung penegak hukum dan ditinjau dari faktor masyarakat juga tidak efektif disebabkan masih adanya pelanggaran-pelanggaran yang dilakukan masyarakat dimana hal tersebut bertentangan dengan Peraturan Desa Rewataya Nomor 01 Tahun 2013 tentang Pengelolaan Mangrove. Kedua, terdapat relevansi Peraturan Desa Rewataya Nomor 01 Tahun 2013 tentang Pengelolaan Mangrove dengan konsep dan prinsip-prinsip sustainable development dimana Pasal-Pasal yang dimuat didalam Peraturan Desa Rewataya Nomor 01 Tahun 2013 tentang Pengelolaan Mangrove relevansi dengan konsep dan prinsip-prinsip sustainable development

PENGARUH COATING GEL LIDAH BUAYA TERHADAP VIABILITAS DAN VIGOR BENIH KAKAO

Benih kakao termasuk benih rekalsitran yang memiliki beberapa kendala seperti kadar air yang tinggi, tidak tahan desikasi dan suhu rendah, serta mudah terserang jamur sehingga menyebabkan benih tidak dapat disimpan dalam jangka waktu yang lama. Pada kondisi kadar air benih yang tinggi, perombakan cadangan makanan terjadi pada benih melalui proses respirasi benih juga tinggi yang menyebabkan terjadinya penurunan mutu benih akibatnya viabilitas dan vigor benih juga menurun. Penelitian ini bertujuan untuk mengetahui pengaruh pelapisan benih kakao dengan gel lidah buaya terhadap viabilitas dan vigor benih, dan mendapatkan konsentrasi gel lidah buaya yang mampu mempertahankan vigor dan viabilitas benih kakao selama penyimpanan. Penelitian dilaksanakan pada bulan Maret hingga Mei 2019 di Laboratorium Kampus III Universitas Andalas, Dharmasraya. Penelitian ini disusuan dalam Rancangan Acak Lengkap (RAL) dengan perlakuan beberapa konsentrasi gel lidah buaya yakni 0%, 25%, 50%, dan 75%. Setiap perlakuan tersebut diulang sebanyak 3 ulangan. Berdasarkan penelitian yang sudah dilakukan diketahui bahwa pelapisan benih dengan gel lidah buaya tidak berpengaruh terhadap viabilitas dan vigor benih kakao

POTENSI PENALARAN ADAPTIF MATEMATIS SISWA DALAM MATERI PERSAMAAN GARIS LURUS DI SEKOLAH MENENGAH PERTAMA

Abstrak: Tujuan penelitian ini secara umum untuk mendeskripsikan potensi penalaran adaptif matematis siswa dikaji dari tingkat kemampuan matematikanya dalam materi persamaan garis lurus di kelas VIII SMP Negeri 18 Pontianak tahun ajaran 2015/2016. Metode penelitian yang digunakan adalah deskriptif dengan bentuk penelitian studi kasus. Hasil analisis data menunjukkan bahwa kemampuan penalaran adaptif matematis siswa sesuai dengan tingkat kemampuan matematikanya. Artinya, kemampuan penalaran adaptif matematis siswa dalam materi persamaan garis lurus yang tergolong dalam kelompok atas termasuk dalam kategori tinggi (61,67%), siswa yang tergolong dalam kelompok tengah termasuk dalam kategori sedang (50%), dan siswa yang tergolong dalam kelompok bawah termasuk dalam kategori rendah (38,33%). Kata Kunci: Potensi, Penalaran Adaptif, Kemampuan Matematika. Abstract: In general, the aim of this research is to describe the potential of adaptive mathematical reasoning of the students which studied from the math skills level of linear equation at grade eight of “SMP Negeri 18 Pontianak” in the Academic Year 2015/2016. The research method used was descriptive case study. The result showed that the potential of adaptive mathematical reasoning of the students suitable with the level of mathematical ability. That is, the adaptive mathematical reasoning skills students of linear equation who belong to the top level included in high category (61.67%), students who belong to the middle level included in the medium category (50%), and students who belong to below level included in low category (38.33%). Keywords: Potential, Adaptive Reasoning, Mathematics Ability