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All Journal AGROLOGIA : Jurnal Ilmu Budidaya Tanaman JURNAL BUDIDAYA PERTANIAN
Herman Rehatta
Jurusan Budidaya Pertanian, Fakultas Pertanian, Universitas Pattimura
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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The Effect Of Climate Change On Productivity Of Clove (Syzigium Aromaticum) In Haruku Island, Central Maluk Regency Imelda Jeanette Lawalata; Herman Rehatta; Semuel Leimaheriwa; Johana Audrey Leatemia
Agrologia Vol 12, No 1 (2023): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v12i1.1808

Abstract

The world trade history has recorded Maluku as a spice-producing region, including cloves. This commodity has high economic value and is the main source of income for farmers in several areas in Maluku Province. Climate is an environmental factor that also influences plant metabolism and physiology, so that changes in some elements of climate can have a negative impact on plant growth and productivity. The objective of this study was to get information regarding effect of climate variable on productivity of cclove in Haruku island, Central Maluku Regency. Data was collected by field srvey, while secondary data was gathered form related agencies. The results showed that the Haruku Island area with a local-unimodal rain pattern experienced an increase in annual rainfall of 11.8% in the period of 1991-2020 compared to the previous period (1961-1990). The rainy season rainfall (April-September) tends to increase by 15.2%, while the dry season rainfall (October-March) does not show a significant increase, namely only 1.3%. In the last 60 years (1961 – 2020) in the Haruku Island region, El-Nino extreme dry rainfall occurred 19 times. La-Nina wet extreme rainfall events occurred 14 times. Climate variables that affect production are the average annual length of solar radiation, the average annual relative humidity and the amount of annual rainfall
The Effect Of Concentration Of AB Mix Nutrition And Plant Media On Plant Growth And Results Green Sawis (Brassica rapa) With a System Substrat Hydroponics Herman Rehatta; Imelda J. Lawalata; Albertina Hiwy
Agrologia Vol 12, No 1 (2023): Agrologia: Jurnal Ilmu Budidaya Tanaman
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ajibt.v12i1.1653

Abstract

The research aimed to examine: 1) The effect of AB Mix nutrient concentration on the growth and yield of green mustard, 2) The effect of growing media on plants mustard greens under a substrate hydroponic system, 3) The interaction effect hydroponic nutrient concentration and growing media (cocopiet, husk charcoal and sand) under the substrate hydroponic system. The study used a two-factor randomized block design with three replications. Observation variables included: plant height, leaf number , leaf area, plant fresh weight, root length and root fresh weight. The results showed that the nutrient concentration treatment of AB Mix showed insignificant effects on the variables of plant height (42 Day After Planting), root length and root fresh weight but gave significant effects on leaf number (42 DAP), leaf area and plant fresh weight. The treatment of growing media and the interaction between nutrient concentrations of hydriponic nutrient and growing media showed insignificant results for all observed variables.
The Effect Of Weight and Soaking Of Tuber Cuttings In Cow Urine On Sprouting and Seedling Growth White Yam (Dioscorea alata L.) Julani Buton; Anthony Walsen; Herman Rehatta
JURNAL BUDIDAYA PERTANIAN Vol 18 No 2 (2022): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jbdp.2022.18.2.97

Abstract

Research on the effects of seed weight and soaking of tuber cuttings in cow urine on sprouting and seedling growth white yam (D. alata L.). The research was aimed to obtain the optimal cutting weight and cow urine concentration on the speed of bud growth of the tuber cuttings. The research was carried out in February-April 2018, in the Greenhouse of the Faculty of Agriculture, University of Pattimura, Ambon. The research method used was a Randomized Block Design with a 4x3 factorial experiment with 3 replications so that there were 36 experimental units. The first factor tested was the weight of tuber cuttings, consisting of 4 treatment levels, i.e. 10-15 g, 20-25 g, 30-35 g, 100-105 g. The second factor was the concentration of fresh cow urine, consists of 3 treatment levels, i.e. at concentration of 0%, 15% and 30%. The results showed that the weight of 100-105 g as a control gave the best results on the number of buds, the number of shoots formed, shoot length (cm2), leaf area (cm2), number of leaves, net assimilation rate (g/cm2/week), plant growth rate (g /cm2/week), root length (cm) and number of roots. Cow urine treatment at 30% concentration produced the best seed growth compared to 15% concentration and 0% (without urine treatment). The use of tuber cutting weighing 10-15 g produced seedlings that could develop into productive plants.
Co-Authors A. P Manuhuttu A.M. Kalay Abraham Talahaturuson, Abraham Albertina Hiwy Andhini Siti Fatiha Anna Y. Wattimena Anthony Walsen Anthony Walsen Dessy A Marasabessy Elizabet Kaya Falmi Tupamahu Henry Kesaulya Henry Kesaulya Imelda Jeanette Lawalata J.J.G Kailola Jane I Nendissa Jean Jean Nendissa Johana Audrey Leatemia Julani Buton Karim Lamawulo L. Gomies Laimeheriwa, Semuel Marthen Marthen N Riry Primarine R Tahapary Reginawanti Hindersah Safril H Sopalauw V. L Tanasale