Electronic Theses and Dissertation

Tomat (Solanum lycopersicum L.) merupakan tanaman hortikulturan yang berasal dari Amerika Tengah dan memiliki nilai ekonomi penting di Indonesia. Pertumbuhan dan produksi tomat dipengaruhi oleh berbagai faktor, termasuk ketersediaan nutrisi, air, cahaya, dan serangan hama penyakit. Tindakan pencegahan yang dapat dilakukan dalam mengendalikan penyakit pada tomat dengan menggunakan fungisida. Penggunaan fungisida yang tepat dapat membantu meningkatkan produksi tanaman tomat. Tujuan dari penelitian ini untuk mengetahui pengaruh pemberian campuran bahan aktif fungisida terhadap pertumbuhan dan produksi tanaman tomat varietas Natavi F1.
Penelitian ini dilakukan di Learning Development & Centers (LDC) Syngenta, Desa Panyalaian, Kecamatan X Koto, Kabupaten Tanah Datar, Sumatera Barat. Penelitian dilaksanakan pada bulan September 2023 hingga Juni 2024. Bahan yang digunakan dalam penelitian ini meliputi tomat varietas Natavi F1, fungisida berbahan aktif Oxathiapiprolin 30 g/L dan Famoxadon 300 g/L, Oxathiapiprolin 155 g/L dan Azoxystrobin 15 g/L, serta Oxathiapiprolin 400 g/L dan chlorothalonil 6 g/L. Penelitian ini menggunakan Rancangan Acak Kelompok pola non faktorial dengan 4 perlakuan yang diulang sebanyak 4 kali. Total sampel yang diamati adalah 4 tanaman dalam satu ulangan, sehingga jumlah sampel yang diamati 64 tanaman. Data hasil pengamatan dianalisis dengan ANOVA. Apabila hasil analisis berpengaruh nyata, maka dilanjutkan dengan Uji Beda Nyata Jujur pada taraf 5%.
Hasil penelitian menunjukkan campuran bahan aktif fungisida berpengaruh sangat nyata terhadap tinggi tanaman umur 35 dan 56 HST, jumlah tandan per tanaman, jumlah buah per tanaman dan bobot buah pertanaman, berpengaruh nyata terhadap tinggi tanaman umur 42 HST, umur berbunga dan umur panen serta berpengaruh tidak nyata terhadap tinggi tanaman umur 49 HST dan diameter buah. Campuran bahan aktif fungisida Oxathiapiprolin + Chlorothalonil menunjukkan perlakuan terbaik pada tinggi tanaman tomat, jumlah tandan per tanaman, jumlah buah per tanaman, dan bobot buah per tanaman. Perlakuan Oxathiapiprolin + Azoxystrobin juga menunjukkan pengaruh terbaik pada tinggi tanaman tomat, jumlah tandan per tanaman, dan jumlah buah per tanaman.

Tomato (Solanum lycopersicum L.) is a horticultural crop originating from Central America and has important economic value in Indonesia. Tomato growth and production are influenced by various factors, including the availability of nutrients, water, light, and pest infestation. Preventive measures that can be taken in controlling diseases on tomatoes by using fungicides. Appropriate use of fungicides can help increase tomato plant production. The purpose of this study was to determine the effect of applying a mixture of fungicide active ingredients on the growth and production of tomato plants of the Natavi F1 variety. This research was conducted at Syngenta's Learning Development & Centers (LDC), Panyalaian Village, X Koto District, Tanah Datar Regency, West Sumatra. The research was conducted from September 2023 to June 2024. The materials used in this study include tomato variety Natavi F1, fungicides made from Oxathiapiprolin 30 g/L and Famoxadon 300 g/L, Oxathiapiprolin 155 g/L and Azoxystrobin 15 g/L, and Oxathiapiprolin 400 g/L and chlorothalonil 6 g/L. This study used a non-factorial Randomized Group Design pattern with 4 treatments repeated 4 times. The total samples observed were 4 plants in one replication, so the total number of samples observed was 64 plants. Observation data were analyzed with ANOVA. If the results of the analysis have a significant effect, it is continued with the Honest Real Difference Test at the 5% level. The results showed that the mixture of active ingredients of fungicides had a very significant effect on plant height at 35 and 56 HST, the number of bunches per plant, the number of fruits per plant and fruit weight per plant, had a significant effect on plant height at 42 HST, flowering age and harvest age and had no significant effect on plant height at 49 HST and fruit diameter. The mixture of Oxathiapiprolin + Chlorothalonil fungicide active ingredients showed the best treatment on tomato plant height, number of bunches per plant, number of fruits per plant, and fruit weight per plant. The Oxathiapiprolin + Azoxystrobin treatment also showed the best effect on tomato plant height, number of bunches per plant, and number of fruits per plant.