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All Journal Jurnal Biologi Tropis International Journal of Educational and Life Sciences (IJELS) Didaktika Biologi: Jurnal Penelitian Pendidikan Biologi
Pangestu, Prestiani Yulia
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Public Health Social Sciences Other

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Identification of Types of Pests and Diseases of Cauliflower Plants (Brassica oleracea var. botrytis L) in Gonaman Village, Koripan, Matesih District, Karanganyar Hanik, Nur Rokhimah; Armania, Vallery; Ardiansyah, Muhammad Ilham; Marta, Fadhilah; Hidayad, Muhammad Nur; Saputra, Dian Andhi; Mardyah, Muthia; Pangestu, Prestiani Yulia; Yoshia, Selumiel; Sarima, Sarima
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9221

Abstract

Cauliflower (Brassica oleracea var. botrytis L.) during its development period needs to be controlled by pests and diseases, because at that time the flowers or krobs come out and will determine the quality and quantity of its production. This research is conducted to characterize and differentiate various types of pests and diseases found in cauliflower plants in the gardens of Gonaman Village, Koripan, Matesih District, Karanganyar. This research employs a methodology based on descriptive qualitative analysis. The tools utilized in this study include a mobile phone, writing instruments, and observation sheets. The research subjects consist of various pests and diseases identified in the garden area. Data collection by observation of the garden and direct interviews with garden owners. For data analysis and validation, qualitative descriptive techniques are used with additional interview activities with cauliflower farmers and literature studies. Based on the results of the study, eight pests have been found, namely; Whitefly / Cabuk (Aphis brassicae), Thrips (Thrips tabasi), Whitefly (Aleyrodidae sp), Crop Caterpillar (Crocidolomia binotalis), Ladybug (Illeis galbula), Brown grasshopper (Valanga nigricornis), Leaf beetle (Aluacphora sp), Leaf caterpillar (Plutella xylostella). And four diseases were found; Alternaria brassicae fungus, bacterial rot by Pectobacterium carotovorum, Erwinnia carotovora bacteria, and Xanthomonas camprestis bacteria. The visible symptoms are damage to the leaves, yellow, brownish to blackish leaves, rotten and wilted flowers so that they can reduce the harvest. Pest and disease control can be done by spraying pesticides, fungicides once a week, maintaining land cleanliness, maintaining planting distance, selecting healthy seeds, and providing lime and boren. For further research, it should be done for several days, in the morning and evening when insects are active.
The Effect of Fertilizers on Some Growth and Physiological Aspect of Chili Cultivar: a review Pangestu, Prestiani Yulia; Marta, Fadhillah; Eskundari, Ratna Dewi; Hanik, Nur Rokhimah; Purwanto, Agus
International Journal of Educational and Life Sciences Vol. 2 No. 7 (2024): July 2024
Publisher : MultiTech Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59890/ijels.v2i7.2237

Abstract

Chili is a type of plant that is consumed almost every day by almost all of the world's population. Increasing the yield of chili plants will ensure the availability of chilies on the market. One effort to increase the amount of chili production is by choosing the right fertilizer based on the type of chili planted. In this review article, we discuss the influence of chemical and or non-chemical fertilizer types which are related to physiological aspects, for example the number of leaves, plant height, and total chlorophyll content. By knowing a lot of information regarding fertilization of chili plants, it is hoped that it can help in efforts to increase production so that it can meet people's needs for chilies.
KONSTRUKSI DAN VALIDASI INSTRUMEN TES SOCIOSCIENTIFIC ARGUMENTATION SKILLS PADA TOPIK HUTAN MANGROVE : SEBUAH METODE DELPHI Nugroho, Anwari Adi; Suwarto, Suwarto; Purwanto, Agus; Armania, Valerry; Pangestu, Prestiani Yulia
Didaktika Biologi: Jurnal Penelitian Pendidikan Biologi Vol. 8 No. 2 (2024): DIDAKTIKA BIOLOGI
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/didaktikabiologi.v8i2.244

Abstract

Pengukuran keterampilan berargumentasi diperlukan untuk mengetahui profil keterampilan berargumentasi mahasiswa pada isu socioscientific. Tujuan penelitian ini adalah untuk mengkonstruksi dan memvalidasi isi instrumen keterampilan berargumentasi berbasis socioscientific issues (socioscientific argumentation skills) pada topik hutan mangrove mata kuliah Ekologi Tumbuhan di Universitas Veteran Bangun Nusantara. Penelitian ini merupakan bagian dari penelitian pengembangan yaitu perancangan dan pengembangan produk awal.  Konstruksi instrumen keterampilan berargumenasi berbasis socioscientific issues dilakukan dengan kajian literatur untuk menentukan dimensi dan indikator keterampilan berargumentasi. Proses validasi isi dari instrumen tes menggunakan metode Delphi. Validasi isi menggunakan 13 validator ahli instrumen evaluasi dan hasil dari skor yang diberikan oleh masing-masing validator selanjutnya dilakukan perhitungan dengan menggunakan koefisien validitas Aiken. Aspek yang dinilai antara lain : materi, konstruksi dan bahasa. Hasil konstruksi instrumen tes menunjukkan bahwa socioscientific argumentation skills mencakup aspek-aspek claim, evidence, reasoning, contemplation dan disusun menjadi 6 indikator serta 8 soal tes essai. Hasil validasi isi oleh 13 validator ahli dengan perhitungan Aiken menunjukkan bahwa 8 soal tes semua valid. Instrumen tes socioscientific argumentation skills yang sudah valid ditinjau dari validitas isi perlu dilanjutkan dengan uji validitas konstruk.
Co-Authors AGUS PURWANTO Anwari Adi Nugroho, Anwari Ardiansyah, Muhammad Ilham Armania, Valerry Armania, Vallery Hidayad, Muhammad Nur Mardyah, Muthia Marta, Fadhilah Marta, Fadhillah Nur Rokhimah Hanik Ratna Dewi Eskundari Saputra, Dian Andhi Sarima, Sarima Suwarto Suwarto Yoshia, Selumiel