| Abstrak (Bhs. Indonesia) | Tanaman padi (Oryza sativa L.) merupakan komoditas penting yang berperan dalam menyokong pangan nasional karena berfungsi sebagai sumber bahan makanan pokok. Pada lahan sawah tergenang, suplai oksigen ke akar tanaman mengalami penurunan tajam (anoksia) dan kondisi dimana berkurangnya suplai oksigen jaringan dibawah level normal (hipoksia) akan menyebabkan proses metabolisme terganggu pada akhirnya menurunkan hasil panen. Inovasi sistem aerasi sederhana menawarkan solusi dengan meningkatkan kadar oksigen di zona perakaran, dengan menciptakan gelembung-gelembung halus udara yang naik melalui air. Penelitian ini menggunakan rancangan split plot dengan rancangan dasar yaitu RAKL (Rancang Acak Kelompok Lengkap) dan ulangan sebanyak 3 kali. Main plot terdiri dari 3 periode aerasi yaitu 0% aerasi, 50% aerasi dan 100% aerasi. Subplot terdiri dari 2 varietas padi yaitu padi Mapan P05 dan padi Inpari 32. Variabel yang diamati meliputi kadar oksigen terlarut, konduktivitas listrik, pH, total padatan terlarut, konsumsi energi, temperatur, volume akar, tingkat kehijauan daun, bobot segar akar, bobot kering akar, panjang akar dan indeks panen. Hasil penelitian menunjukkan bahwa penggunaan sistem aerasi pada perlakuan 100% aerasi memberikan hasil terbaik pada kadar oksigen terlarut (6,2 mg/L), konduktivitas listrik (0,57 dS/m), total padatan terlarut (284,1 ppm), konsumsi energi aerator (90,7 kWh), tingkat kehijauan daun (33,1), volume akar (101,5 ml), bobot segar akar (93,6 g), bobot kering akar (29,8 g) dan indeks panen (82,9%). Pada perlakuan varietas, Mapan P05 memberikan hasil terbaik pada volume akar (104,8 mL), bobot segar akar (97,2 g), bobot kering akar (29,5 g) dan panjang akar (37,9 cm). |
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| Abtrak (Bhs. Inggris) | Rice (Oryza sativa L.) is an important commodity that plays a role in supporting national food because it serves as a source of staple food. In flooded paddy fields, the oxygen supply to the plant roots is sharply reduced (anoxia) and a condition where the reduced tissue oxygen supply is below normal levels (hypoxia) will cause metabolic processes to be disrupted and ultimately reduce crop yields. A simple aeration system innovation offers a solution by increasing oxygen levels in the root zone, by creating fine bubbles of air that rise through the water. This study used a split plot design with a basic design of RAKL (Randomized Complete Group Design) and 3 replications. The main plot consisted of 3 aeration periods: 0% aeration, 50% aeration and 100% aeration. The observed variables include dissolved oxygen content, electrical conductivity, pH, total dissolved solids, energy consumption, temperature, root volume, leaf greenness, root fresh weight, root dry weight, root length and harvest index. The results showed that the use of aeration system in 100% aeration treatment gave the best results on dissolved oxygen content (6.2 mg/L), electrical conductivity (0.57 dS/m), total dissolved solids (284.1 ppm), aerator energy consumption (90.7 kWh), leaf greenness level (33.1), root volume (101.5 mL), root fresh weight (93.6 g), root dry weight (29.8 g) and harvest index (82.9%). While in the variety treatment, Mapan P05 gave the best results in root volume (104.8 mL), root fresh weight (97.2 g), root dry weight (29.5 g) and root length (37.9 cm). |
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