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Rodinah Rodinah
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Pengaruh Kompos Jerami Padi terhadap Kelarutan Ferro (Fe2+) dan pH Tanah Serta Pertumbuhan Tanaman Padi Ciherang di Tanah Sulfat Masam Muhammad Suriani; Muhammad Mahbub; Rodinah Rodinah
Agroekotek View Vol 3, No 1 (2020)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.638 KB) | DOI: 10.20527/agtview.v3i1.1416

Abstract

One type of land in a swamp ecosystem that has a lot of complexity is acid sulfate soils. One of the factors that can improve the condition of this soil is the use of organic material which functions to maintain soil redox and can chelate Fe2+. The purpose of this research was to know the effect of rice straw compost on ferro-iron solubility, soil pH, and rice growth so it obtained the appropriate treatment of the dose of rice straw compost. Soil sampling of acid sulfate soil was collected in Jejangkit District, South Kalimantan. This research was conducted in the greenhouse of Agroecotechnology Study Program and set up with a completely randomized design with a single factor. The treatments were K0: control, K1: soil + straw compost 2,5 t ha-1, K2: soil + straw compost 5,0 t ha-1, K3: soil + straw compost 7,5 t ha-1, K4: soil + straw 10,0 t ha-1, with 3 replications. The results showed that the dose of straw compost treatments was not significantly affected on Fe2+ iron solubility, number of tiller, wet and dry weight of rice plant, but showed a significant on soil pH. The best treatment of rice straw compost is in the treatment with 5 t ha-1 of dose because it can increase the highest pH of 3,72 and can reduce Fe2+ content to 54,82 mg kg-1. Tiller number, wet weight, and dry weight of rice plants were not significantly different because the plant runs into a limitation of growing.
Penggunaan Metode Student Team Achievement Division untuk Meningkatkan Motivasi Belajar Siswa pada Konsep Menghitung Luas Segitiga Kelas IV SD Rodinah Rodinah
Academy of Education Journal Vol 9 No 2 (2018): Academy of Education Journal
Publisher : Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.343 KB) | DOI: 10.47200/aoej.v9i2.259

Abstract

The purpose of this study was (1) to analyze the impact of using the Student Team Achievement Division (STAD) method to increase student motivation about the concept of calculating the area of a triangle in class IV SD Negeri 1 Dermaji, Lumbir District, Banyumas Regency. (2) analyzing the impact of using the Student Team Achievement Division (STAD) method can improve student learning outcomes about the concept of calculating the area of a triangle in class IV SD Negeri 1 Dermaji Banyumas District Banyumas Regency. The CAR procedure consists of four steps of research, namely planning, implementation, observation and reflection in its implementation of two cycles. The results of this study can be concluded as follows: (1) the use of the STAD method in mathematics learning about calculating the area of a triangle can increase learning motivation of fourth grade students of SD Negeri 1 Dermaji Banyumas District Banyumas Regency with an increase from 10 students to 22 students or 50.00%. (2) With the use of visual aids can improve student learning outcomes in class IV SD Negeri 1 Dermajid with an average from the beginning of learning to the second cycle that is 49.79 to 75.63 increased 86.67 and mastery learning from 8 students to 18 students later rose to 23 students from 24 students overall. So in the conclusion of this study are (1) The use of the STAD method can increase student motivation in class IV SD Negeri 1 Dermaji Banyumas District Banyumas Regency; (2) The use of the STAD method is proven to be able to improve student learning outcomes in class IV SD Negeri 1 Dermaji, Banyumas District, Banyumas Regency.
Respon Pisang Sulindang (Musa Paradisiaca L.) terhadap Formulasi Media MS dengan Sitokinin Wismantia, Welly; Rodinah, Rodinah; Hardarani, Novia
Agroekotek View Vol 6, No 2 (2023)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/agtview.v6i2.3248

Abstract

The availability of banana seeds, especially Sulindang bananas as a fruit commodity in South Kalimantan, cannot be met on a large scale. The problem is that Sulindang banana seeds are still produced conventionally that produce small amounts of weeds. The solution that can be done to get maximum seed yield is by tissue culture. The research aims to determine the influence of interaction between BAP and kinetin on the growth of banana weevil explant Sulindang. This study used RAL two factors in the form of kinetin concentration and BAP concentration, consisting of 4 levels of kinetin; k0 = 0 mg l-1 kinetin; k1 = 1 mg l-1 kinetin; k2 = 2 mg l-1 kinetin; k3 = 3 mg l-1 kinetin and consists of 4 levels of BAP; b0 = 0 mg l-1 BAP; b1 = 2 mg l-1 BAP; b2 = 2.5 mg l-1 BAP; b3 = 3 mg l-1 BAP. The observed variables are changes in the morphology of the explant, the time the buds appear, the number of buds, the number of leaves, the percentage of living explants, the percentage of explants of contamination and the percentage of browning. The results of this study showed that there was no interaction between various concentrations of BAP and kinetin with banana explant Sulindang in the in vitro growth response in MS media.  The BAP concentration did not affect the growth of the Sulindang Alas banana weevil explants. Single factor kinetin 2 mg l-1 was able to give the best results on the percentage of live explants at week 3 and week 6, respectively 96.88% and 93.75%. Also gives the smallest percentage of contamination at week 3 of 3.13% and week 4 to week 6, respectively - 6.25%.
Ketahanan Kultivar Pisang Lokal Kalimantan Selatan terhadap Penyakit Bercak Sigatoka (Mycosphaerella sp.) Mariana, Mariana; Rodinah, Rodinah; Budi, Ismed Setya
Jurnal Fitopatologi Indonesia Vol. 13 No. 2 (2017)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (446.118 KB) | DOI: 10.14692/jfi.13.2.51-58

Abstract

Sigatoka of banana caused by Mycospherella sp. is an important disease, since it causes yield losses. Resistant variety is considered a promising approach for sigatoka disease management. This study was aimed to evaluate the resistance of local banana cultivars from South Kalimantan against sigatoka disease. The fungus was isolated from leaves of Kapas cultivar showing severe symptoms of sigatoka disease, onto potato dextrose agar medium. The isolate was then confirmed as Mycosphaerella sp. following Koch’s postulate. Level of resistance is determined based on symptoms development. Resistance of local banana cultivars can be differentiated into susceptible (‘Awak’, ‘Jaranang’, ‘Kapas’, ‘Mas’, and ‘Paikat’), medium resistant (‘Ambon’, ‘Kepok’, ‘Mas Bantan’, ‘Mauli’, and ‘Talas’), and resistant (‘Tarati’).  In general, the symptom was visible 2 to 8 days after inoculation. The longer incubation period the more resistant response of banana varieties.  Incubation period was negatively correlated to the disease intensity, but it is not correlated with stomatal density.
Co-Authors Hardarani, Novia Ismed Setya Budi Mariana Mariana Muhammad Mahbub Muhammad Suriani Wismantia, Welly