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All Journal Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal
Uki Dwiputranto
Fakultas Biologi Unsoed
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Pertumbuhan Cabai Merah (Capsicum annuum L.) pada Tanah Masam yang Diinokulasi Mikoriza Vesikula Arbuskula (MVA) Campuran dan Pupuk Fosfat Maryam Jamilah; Purnomowati Purnomowati; Uki Dwiputranto
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 33, No 1 (2016)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2016.33.1.347

Abstract

This research aimed to find out the interaction effect between mixed Vesicular Arbuscular Mycorrhiza (VAM) and phosphate fertilizer to the growth of red chili (C. annuum) in acid soil, and to fnd out the best combination of mixed VAM and phosphate fertilizer to the growth of red chili (C. annuum) in acid soil. This research used an experimental method with Completely Randomized Design (CRD) in a factorial pattern with two factors. The first factor was mixed VAM dosages consisted of four levels: 0; 10; 15; 20 g/plant. The second factor was phosphate fertilizer dosages consisted of four levels:  0; 0,2; 0,4; 0,6 g/plant. Each combination treatment had three replication. The parameters were observed in the form of plant height, stem diameter, plant top dry weight, degree of VAM infection, and P content of plant tissue. Data obtained from the observation was analyzed with Analysis of Variance (ANOVA) at an error rate of 5% and 1%, treatment that showed significant or very significant result, then followed with Honestly Significant Difference (HSD) test. The result showed that interaction between mixed Vesicular Arbuscular Mycorrhiza (VAM) and phosphate fertilizer did not increase the plant height, stem diameter, and plant top dry weight, but each factor increased the plant height, stem diameter, and plant top dry weight. VAM dosage inoculation of 20 g/plant without phosphate fertilizer is the most effective combination in increasing the degree of VAM infection.
PENGARUH ASAM ASKORBAT TERHADAP PERTUMBUHAN Colletotrichum acutatum Simmonds Juni Safitri Muljowati; Uki Dwiputranto; Titi Chasanah
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 38, No 3 (2021)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2021.38.3.1350

Abstract

The anthracnose caused by the Colletotrichum acutatum Simmonds fungus is one of the limiting factors for the production of red chilli. The occurrence of anthracnose determined by the success of pathogenesis by C. acutatum. Also, red chilli which is resistant to anthracnose has a higher ascorbic acid content than vulnerable red chili. This paper presents scientific information about the ability to grow three C.acutatum isolates (Kulonprogo, Temanggung, and Pandeglang) on a culture medium given ascorbic acid. The three C. acutatum isolates have high pathogenicity. The results showed that administration of ascorbic acid in the culture medium only affected the dry weight of mycelium and did not affect the diameter length of the colony of C. acutatum.
Co-Authors Juni Safitri Muljowati Maryam Jamilah Purnomowati Purnomowati Titi Chasanah