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Journal : Jurnal Pijar MIPA

STABILITAS ANTI MOLUSKA DARI TANAMAN JAYANTI {Sesbania sesban (L.) Merr.} Suripto Suripto
Jurnal Pijar Mipa Vol. 6 No. 2 (2011): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (225.903 KB) | DOI: 10.29303/jpm.v6i2.131

Abstract

Abstrak: Penelitian ini bertujuan untuk mengevaluasi stabilitas anti moluska dari ekstrak daun  jayanti {Sesbania sesban (L.) Merr.} menurut variasi lama waktu penyimpanan simplisia sebelum diekstraksi, lama waktu penyimpanan ekstrak sebelum diaplikasi, dan stabilitasnya dalam air selama aplikasi. Serbuk kering daun S. sesban diekstraksi secara bertingkat untuk menghasilkan fraksi ekstrak-etanol. Fraksi ekstrak-etanol daun S. sesban dilakukan uji hayati terhadap keong mas secara ex situ dengan rancangan acak lengkap dalam tiga unit percobaan menurut variasi tersebut di atas di Laboratorium Biologi FMIPA Universitas Mataram. Data mortalitas keong mas setiap unit uji hayati diolah dengan analisis probit untuk menentukan LC50. Hasil menunjukkan, bahwa aktivitasanti moluska dari fraksi ekstrak-etanol  daun S. sesban terrhadap keong mas menurun tajam akibat penyimpanan serbuk kering daun selama satu tahun sebelum diekstraksi, namun penurunan toksisitasnya kecil akibat penyimpanan ekstrak selama satu bulan sebelum diaplikasi. Setelah 24 jam berada dalam air, bahan anti moluska dari daun S. sesban tidak aktif  lagi, yaitu mortalitas keong mas 0% pada masing-masing  perlakuan konsentrasi ekstrak. Kata-kata kunci: Stabilitas anti moluska, keong mas, tanaman jayanti (Sesbania sesban). Abstract: The research  intended to evaluate anti-mollusk feature stability  of  S. sesban leaf extract fraction-ethanol according to variation on storage duration of dry matters previous to be extracted and extract  previous to be applied,  and its stability after 24 hours in water. Dry matter of S. sesban leafs extracted successively so that produces the extract fraction-ethanol. The exsitu bioassays of the extract on the golden snail carried out with randomized design in three experiment units based on the variation mentioned.  Each unit data of golden snail mortalities was analyzed by probit analysis to determine LC50. The result saw that storage of  S. sesban leaf dry matter during one year previous to be extracted resulted  in drastic decreasing toxicity on the golden snails, but decreasing toxicity weakly come from storage the extract during a month previous to be applied. The moluscicidal feature of the extract was inactive after 24 hours in water during application, i.e. mortality of   golden snails was 0% in each of extract treatment concentrations.   Key words: stability of molluscicidal performance, golden snail, jayanti plant (Sesbania sesban).
PREFERENSI DAN KECEPATAN MAKAN DARI KEONG MAS TERHADAP TANAMAN PADI Suripto Suripto
Jurnal Pijar Mipa Vol. 4 No. 2 (2009): September
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.257 KB) | DOI: 10.29303/jpm.v4i2.189

Abstract

Abstrak: Penelitian ini bertujuan untuk mempelajari preferensi dan kecepatan makan dari berbagai usia keong mas terhadap berbagai kultivar dan umur tanaman padi. Keong mas dikoleksi dari daerah Tanjung Lombok Utara, dikembangbiakkan dan diaklimatisasi di Laboratorium Biologi FMIPA Universitas Mataram. Variasi usia keong mas yang digunakan untuk uji hayati adalah 1 bulan, 3 bulan dan 6 bulan. Tanaman padi yang digunakan adalah kultivar Cibogo, Cigeulis, dan Ciherang, masing-masing dengan umur 20, 30, dan 60 hari setelah tanam. Uji hayati preferensi dan aktivitas makan dari keong mas terhadap tanaman padi dilakukan secara ex situ menurut rancangan blok acak lengkap di Kebun Biologi Fakultas MIPA Universitas Mataram. Data diolah untuk menentukan tingkat keganasan dari keong mas menurut variasi usia dan kerentanan tanaman padi menurut variasi kultivar dan umurnya setelah tanam. Hasil menunjukkan, bahwa keong mas berusia enam bulan mempunyai kecepatan makan dua kali lipat dari keong mas umur tiga bulan dan empat kali lipat dari keong mas berumur satu bulan terhadap tanaman padi. Preferensi keong mas terhadap tanaman padi tidak dipengaruhi oleh variasi kultivar tanaman padi, akan tetapi lebih dipengaruhi oleh umur tanaman padi tersebut. Tanaman padi berumur 10 dan 20 hari setelah tanam masing-masing adalah delapan dan tujuh kali lipat lebih disukai dari tanaman padi berumur 60 hari setelah tanam.Kata-kata kunci: Keong mas, tanaman padi, kecepatan makan, preferensi. Abstract: The research was intended to evaluate preference and rate of eat away the rice plants (various cultivars and ages) of the golden snail (various live spans). The golden snails were collected in rice lands of Tanjung Area, North Lombok. Its were reared and acclimated in Biology Laboratory. The bioassay was carried out by block randomized design in accordance with ex situ in The Biology Garden, Faculty of Mathematics and Natural Sciences, University of Mataram. Investigations of preference and rate of eat away rice plants with various cultivars: Cibogo, Cigeulis, and Ciherang and ages: 20, 30, and  60 days by the golden snails with various live spans: 1, 3, and 6 months carried out by block randomized design in accordance with ex situ. Data pointed to describe life spans of voracious golden snails and   cultivars and ages of susceptible rice plants. The result saw that, preferences were not dependent on variation of paddy cultivars. The six months old - golden snails  had rate of eat away rice plants two fold than   the three months old - golden snail, and four fold than the a month old - golden snail. The rice plants 10 and 20 days old were given preference by golden snail eight and seven fold the rice plants 60 days old.Key words: Golden snails, preference, rate of eat away, and rice plants.
Analysis of Leaf Area Index of Shade Trees and Its Relationship with the Discomfort Index: A Case Study at the University of Mataram Campus Suripto, Suripto; Rahayu, Rachmawati Noviana; Supardiono, Supardiono; Dujana, Lalu Muhammad Aby; Genggelang, Feby Ayu
Jurnal Pijar Mipa Vol. 20 No. 7 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.10455

Abstract

The development of shade trees on the Mataram University campus is intended to maintain environmental comfort, as well as add beauty. The microclimate softening function of trees is largely determined by the density of their canopies, known as the leaf area index (LAI). Various LAI measurement methods have been developed, which are generally more suitable for assessing tree productivity but less valid for assessing the ability to soften the microclimate or decrease the discomfort index (DI). This study was conducted to analyze the distribution of LAI of shade trees and their relationship with the DI on the Mataram University campus. To obtain a more valid LAI value, the leaf area variable measured was the leaf area forming the canopy, replacing the leaf area on the canopy surface, as was done in previous studies. Microclimate variables measured to determine the discomfort index (DI) were air temperature and relative humidity. The results showed that the LAI of 108 trees (33 species) spread across 9 zones within the Mataram University campus ranges from 1.2630 (very small category) to 9.6735 (very large category). The DI values under the canopy of trees ranged from 23.225 (quite comfortable category) to 26.869 (somewhat comfortable category). The relationship between LAI of shade trees and DI on the campus of Mataram University was linear and negative, with the resulting regression equation being y = 28.1204-0.4749x. If LAI increased, then DI tended to decrease; conversely, if DI increased, then LAI tended to decrease. The function of campus trees in softening the microclimate can be enhanced by improving their LAI.
Co-Authors A'isyah Salimah Abda Abda Abdul Latif Adam, PP Ade Putra, Topan Adi Gunawan Muhammad Adi Kurniawan , Mahrus Lutfi Afridayani Afridayani Agung P, Maulana Agus Salim Agus Salim Ali Imron Ali, Ade Saif Amalia, Cahya Ananda, Zakaria Andri Marfiana Angraini, Monica Dyah Anjelia, Viona Anton Anton Antonius Antonius Aprizal, Muhamad Dicky Apsariwigati, Anindita Argunanto, Argunanto Ari Hamzah, Ridwan Fauzi Ariani, Windy Novita Arifin, Deni Arum Wulandari Asaif, Jimly Majidi Asmau, Asmau Asrorudin, Ahmad Astanti, Arinda Asti Ismia, Ria Athfal, Azkal Azkiya Augustin, Lestari Aulia, Fina Hajar Awalia, Erly Nur Ayudia, Rosalina Azizah, Melati Nur Azizah, Suli Nur Azizah, Zahra Fitri Baity, Namira Nur Basia, Lusmino Bastiansyah, Dodi Budianto, Kukuh Damayanti Damayanti Dani Rahman Hakim, Dani Rahman Dany Prayoga Darsono Darsono Dasuki, Havid Dedi Ardianto Desri Ayu Puspita Dewi Amalia Dewi Permatasari Dicky, Muhamad Didik Setiawan Diniati, Herild Dujana, Lalu Muhammad Aby Dwi Sampurno, Wahyu Eko Prastyo Erfandi, Eli Erick Valentine Ernawati Ernawati ERNIN HIDAYATI Fachry Abda El Rahman Fajar, Nanda Kurnia Fajaryati, Hijroini Ferry Irawan Ferry P. Gultom, Ferry P. Firdaus Firdaus Fitriannisa, Eka Andita Genggelang, Feby Ayu Gustyas, Ovindha Hadi Rosid, Mufaat Halawa, Erimina Hamdy, Syaibatul Hamzah, M. Imron Harahap, Amin Hari Pambagiyo, Panggih Haris Faozan Harori, M Iqbal Harori, M. Iqbal Hartoyo Hartoyo Haryati, Septi Heri Triluqman Budisantoso Herry Kurniawan Hery Widijanto Hidayat, Edi Muhamad Hilman Ahyadi Hirmaleny, Yenny Holiawati Holiawati Holiawati, Holiawati Husin, Muhammad Anfield Artava I Gde Sukadana Ibraham, Diki Imam H Sasongko Iman, Agis Saeful Indasah Indrawahyu, May Leny Is’ad Agustina, Asfiah Ismail, Muhammad Taufiqi Ismono, Fransiskus Pawang Istanti Istanti, Istanti Iwhan Ariftian Zuhdi, Agus Jeni Wulandari Julianto, Muhamad Juna Sari Berutu Kherani, Evi Khoirudin, Rifki Kristiyanto, Kristiyanto Kurnia Asih, Dea Kussuyatmono Bagus Wardianto Laila Maghfuroh, Atika Lalu Japa, Lalu Lamsah, Lamsah Lestari Sukarniati, Lestari M Iqbal Harori M. Iqbal Harori M. Syamsul Maarif Madrois, Madrois Maemunah Maemunah Mahrus Lutfi Adi Kurniawan, Mahrus Lutfi Adi Mahwiyah, Mahwiyah Malik, Muhamad Abdul Manurung, Safaruddin Mashadi, Usamah Masnianti, Nia Masrokhah , Siti Maulana Agung Pratama Maulana, Achmad Maulana, Ingga Meisya, Eveline Melda Suhita, Byba Melinia, Else Mubarok, Abdul Muhammad Fathur Rouf Hasan Muhammad Ikhsan Febriyanto Muhammad Sulaiman Murdianingsih, Dian Ngadenin Ngadenin NGATIMIN, NGATIMIN Ningsih, Diah Wuriah Noorbaity Noorbaity Nopagia, Nopagia Novayadi, Nurmalinda Noviani, Witria Novita Sari Nugroho, Prilian Catur Nur Aini Nur Khasanah, Nunik Nurhasanah Nurhasanah Nurjaman, Ulung Nurul Hasanah Oktavianto, Nanang Oktaviany, Firda Sari Ovindha Gustyas Pargito Pargito Pasaribu, Sony Heru Tua Permata, Diah Ayu Prasetya, Victor Prasetyo, Arif Hadi Pratama, Rico Aji Pratiwi, Adhitya Putri Prawiradikarta, Annisa Azzahra Herawan Prayoga, Dany Prayogi, Agung Prihandika, Galih Dwi Purba, Sofyan Helmi Purwatiningsih Purwatiningsih Puspitasari, Saras Meilia Rahayu, Rachmawati Noviana Rahmadania, Nanda Putri Izza Rahmadia Utami Syafitri Rahmawati Rahmawati Rahmawati, Rahmawati Ranjamandi, Aprinanto Rarasasi Ribka Redonoarsi Ria Puspitawati Rifyansyah, Ramadhan Rijaldi, Ferdy Rokhmawati, Siti Wulan Rosini, Iin Rudi Gunawan Ruhiyat, Endang Safar Nasir, Muhammad Safitri, Cindy Eka Safitri, Rinjani Yulia Samosir, Refina Tasari Saputri, Saputri Sari Dewi, Siti Ratna Sari, Danik Kurnia Sari, Diah Puspita Sari, Fitri A. Sari, Putri Indah Permata Sari, Rosita Purnama Sari, Wulan Nurdiana Sembiring, Rinawati Setyawan, Rai Rake Silvia Sari Sirait, Ebenezher Sri Hartutik Subayil, Lalu Suciati Muanifah Sugeng Purwanto Sugiyanto - Suhariyanti, Tri Suharmadi Suharmadi Suharsono, Yoyok Sukamto, Ika Sumiyarsi Sulistio, Basuki Sunarti, Desi Supandi, Yusuf Supardiono, Supardiono Suprayogi Suprayogi Suprihno Suprihno, Suprihno Supriyanto Supriyanto Supriyanto, Yudi Surpiyanto Surpiyanto Susilawati, Susilawati Syafi'ah, Syafi'ah Syafitri, Rahmadia Utami Syamsuri Tomi Hadi Lestiyono Trianto, Cahyo Tutut Sumartini, Tutut Uci Turtusi, Muhammad Ulfa, Nurul Ulhaq Taufiqurrahman, Dhiya Wahyu Kurniawan Wahyudi Widodo Wahzudik, Niam Wardianto, K Bagus Wardokhi, Wardokhi Wijaya, Uki Budi Wijaya, Uki Budi Wijaya Winda Septiani Winingsih, Wiwi Wulan, Defina Andany Wulandari, Rosita Wulandari, Titin Juniar Wuriah, Diah Yandra Arkeman Yelvi Yelvi Yeyet Rohyati Yunus, Aditia D. Zahra, Indri Eliza Zakiyatun Nashihah, Ulfa Zuhairi, Zuhairi