Lumingkewas, Adeleyda M. W.
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KAJIAN KUALITAS AIR SUNGAI BENING SEBAGAI SUMBER AIR IRIGASI PERSAWAHAN DI DESA MOPUYA SELATAN II KECAMATAN DUMOGA UTARA KABUPATEN BOLAANG MONGONDOW Yusuf, Hendra; Wantasen, Sofia; Lumingkewas, Adeleyda M. W.
COCOS Vol 1, No 3 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.21022

Abstract

ABSTRACT  The purpose of this study was to determine the water quality of Bening River in Subdistrict Dumoga Utara District Bolaang Mongondow which would be used as rice field irrigation water in the South Mopuya II Village, Subdistrict Dumoga Utara District Bolaang Mongondow. The study was conducted for three months (3 months), namely April to June, the location of water sampling is the Bening River in South Mopuya II Village, then analyzed in the Water Quality Laboratory. The results of the analysis show that the Bening River Sodium Adsorption Ratio (SAR) concentration in the Upper Area (0.61), in theBening River Lower Area (0.59), is in good quality.  DHL (Electrical Conductivity) concentrations in the Bening River in the Upper Area (2.39.10-5dS/m), in the Bening River Lower Area (2.59.10-5dS/m), are in good quality.  TDS (Total Dissolved Solid) concentration in the Bening River in the Upper Area (167 mg/l), in the Bening River Lower Area (181 mg/l), in good quality. Chloride (Cl) Concentration on Bening River in the Upper Area (0.031 me/l), in the Bening River Lower Area (0.051 me/l), in good quality. Boron (B) Concentration on Bening River in the Upper Area (0.005 mg/l), in the Bening River Lower Area (0.005 mg/l), in good quality.  Nitrate (NO3) concentrations in the Bening River in the Upper Area (0.147 me/l), in the Bening River Lower Area (0.179 mg/l), in the good category.  pH concentration in the Bening River in the Upper Area (8.19), in the Bening River Lower Area (7.55), in good quality.  The results of the analysis of Bening River water quality are still in good category or meet the requirements in accordance with the value of Irrigation Water Quality Standards Ayers and Wetscot, 1985.  Keywords:, Water Quality, Sungai Bening, Irigation Water.
Pengaruh Pemberian Mol Sabut Kelapa Terhadap Pertumbuhan Tanaman Sawi Pakcoy (Brassica rapa L.) Danie, Afif Ramadhana; Pioh, Diane D.; Kawulusan, Rafli; Lumingkewas, Adeleyda M. W.
COCOS Vol 3, No 3 (2020)
Publisher : COCOS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRACTSoil fertility is very necessary in the process of plant growth. This study aims to find theeffect of giving coconut fiber MOL to the growth of pakcoy mustard plants(Brassica Rapa L.). Thisresearch was conducted from December 2019 to February 2020 at the Greenhouse of the Faculty ofAgriculture, Sam Ratulangi University, Manado. The method used in this research is a CompletelyRandomized Design (CRD) method with 6 treatments that were repeated 3 times. The treatmentused consist of K: Control, P: Phonska 250 kg/ha, M25: Coconut fiber MOL solution 25% +phonska 250 kg/ha, M50: Coconut fiber MOL solution 50% + phonska 250 kg/ha, M75: Coconutfiber MOL solution 75% + phonska 250 kg/ha, dan M100: Coconut fiber MOL solution 100% +phonska 250 kg/ha. The results showed that the administration of coconut fiber MOL on thegrowth of mustard pakcoy plants in the concentration of coconut fiber MOL 75% + phonska 250kg / ha had an influence on plant height and for the concentration of coconut coir MOL 25% +phonska 250kg / ha had an influence on the number of leaves and weight wet even though thestatistical results show no significant difference.Keywords: Brassica rapa L., Solution, Coconut fiber MOL.
THE EFFECT OF CONCENTRATION AND DURATION OF SOAKING SHALLOT BARK SOLUTION ON ROOT FORMATION OF CUTTINGS OF CHRYSANTHEMUM KULO (Chryshanthemum sp.) IN TOMOHON CITY GARING, MARTHA FERA DELLASTRADA; Lumingkewas, Adeleyda M. W.; Tumbelaka, Selvie
Jurnal Agroekoteknologi Terapan Vol 2, No 2 (2021): EDISI JULI-DESEMBER 2021
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jat.v2i2.35295

Abstract

Chrysanthemum kulo plant is a variety native to The City of Tomohon which has a high aesthetic and economic value. Good quality chrysanthemum plant seeds can be obtained through vegetative multiplication techniques. One of the vegetative multiplication techniques is cuttings. The problem with the propagation of cuttings is that the rooting is less dense, so it can not hold the plant to grow upright. One source of natural growing regulators that can support the formation of roots is shallot bark. Shallot bark contains ABA, IAA, GA, Cytokinin. The purpose of this study was to study the interaction between concentration and length of soaking of shallot bark solution against the formation of cuttings root chrysanthemum shoots. This research was conducted in March 2021 until May 2021 at Screen House, Nursery, And Agrowidya Seeding Center of Tomohon City Tourism, Agriculture and Fisheries Office of Tomohon City.  The design used is a Complete Randomized Design (RAL) Factorial with two factors, namely the first factor of concentration of shallot bark solution (K) consisting of 5 levels of 0%, 25%, 50%, 75%, 100% and the second factor soaking the shallot bark solution (T) consisting of 3 levels of 10 minutes, 20 minutes, 30 minutes. The variables measured are the percentage of root formation (%), the number of roots, and the length of the root (cm). Keywords: Chrysanthemum plants; Cuttings; Roots; Concentration, Shallot Bark.AbstrakTanaman krisan kulo merupakan varietas asli dari Kota Tomohon yang memiliki nilai estetika dan ekonomis yang tinggi. Bibit tanaman krisan yang berkualitas baik dapat diperoleh melalui teknik  perbanyakan secara vegetatif. Salah satu teknik perbanyakan secara vegetatif ialah stek. Masalah pada perbanyakan stek yaitu perakaran yang kurang lebat, sehingga tidak dapat menahan tanaman untuk tumbuh dengan tegak. Salah satu sumber zat pengatur tumbuh alami yang dapat mendukung pembentukan akar adalah kulit bawang merah. Kulit bawang merah mengandung ABA, IAA, GA, Sitokinin. Tujuan dari penelitian ini adalah untuk mempelajari interaksi antara konsentrasi dan lama perendaman larutan kulit bawang merah terhadap pembentukan akar stek pucuk tanaman krisan. Penelitian ini dilaksanakan pada bulan Maret 2021 sampai bulan Mei 2021 di Screen House, Balai Perbenihan Pembibitan dan Agrowidya Wisata Kota Tomohon, Dinas Pertanian dan Perikanan Kota Tomohon. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) Faktorial dengan dua faktor yaitu pertama faktor konsentrasi larutan kulit bawang merah (K) yang terdiri dari 5 taraf  0%, 25%, 50%, 75%, 100% dan faktor yang kedua lama perendaman larutan kulit bawang merah (T) yang terdiri dari 3 taraf yaitu 10 menit, 20 menit, 30 menit. Variabel yang diukur adalah persentase pembentukan akar (%), jumlah akar, dan panjang akar (cm).Kata Kunci:  Tanaman krisan; Stek; Akar; Konsentrasi; Kulit Bawang Merah.