Abstract
This research was aimed to know effect of Physiological Character Response of Soybean Plants ( Glycine max L.) on Waterlogging and Nitrogen Fertilizer. This research has been conducted from November 2019 until January 2020 at Green House Faculty of Agriculture, Sultan Ageng Tirtayasa University, Serang, Banten. This research used a Randomized Block Design with two factors, the first factor was waterlogging of four levels: 100% Soil Water Available (SWA), 125% SWA, 150% SWA, 175% SWA. The second factor was nitrogen fertilizer of three levels: 0 kg ha -1 ), 25 kg ha -1 ), 50 kg ha -1 with three replication. The results showed that treatment of waterlogging affects the number of soybean plant leaves at five Weeks After Planting (WAP). The number of leaves in the waterlogging treatment is 175% less compared to the waterlogging of 100% SWA, 125% SWA, and 150% SWA. Nitrogen treatment affects the stomata length of soybean crops. Nitrogen fertilizer doses of 50 kg ha -1 have a lower stomata length compared to doses of 0 kg ha -1 and 25 kg ha -1 . There is interaction in the treatment of waterlogging and nitrogen fertilizers at a plant height of 2 WAP.
Highlights
Menurut Kristianingsih (2004) rendahnya produktivitas kedelai di Indonesia antara lain disebabkan oleh faktor alam, biotik, teknik budidaya serta fisiologi tanaman kedelai
This research used a Randomized Block Design with two factors, the first factor was waterlogging of four levels: 100% Soil Water Available (SWA), 125% SWA, 150% SWA, 175% SWA
The results showed that treatment of waterlogging affects the number of soybean plant leaves at five Weeks After Planting (WAP)
Summary
Hasil analisis menunjukkan bahwa terdapat pengaruh interaksi perlakuan genangan dan pupuk nitrogen terhadap tinggi tanaman kedelai pada 2 MST. Pada Tabel 2 menunjukkan tidak terdapat pengaruh interaksi perlakuan genangan dan pupuk nitrogen terhadap jumlah daun tanaman kedelai. Hasil penelitian menunjukkan bahwa tidak terdapat pengaruh interaksi perlakuan genangan dan pupuk nitrogen terhadap kandungan klorofil daun. Hasil ini didukung oleh Visser dan Voesenek (2004) yang menyatakan bahwa pembentukan klorofil dihambat dan terjadi penurunan Rubisco pada saat tanaman tergenang. Hasil penelitian menunjukkan bahwa tidak terdapat pengaruh interaksi perlakuan genangan dan pupuk nitrogen terhadap kerapatan stomata daun. Hasil penelitian menunjukkan bahwa tidak terdapat pengaruh interaksi perlakuan genangan dan pupuk nitrogen terhadap panjang stomata daun. Hasil penelitian menunjukkan bahwa tidak terdapat pengaruh interaksi perlakuan genangan dan pupuk nitrogen terhadap bobot biji per tanaman. Keterangan: Angka – angka yang diikuti oleh huruf yang sama pada kolom yang sama menunjukkan tidak berbeda menurut uji DMRT taraf 5%
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