Update Artikelilmiah: 33291

RIZKI NUR HARINDRA HUSNA

NIM

Judul Artikel

Abstrak (Bhs. Indonesia)

Bawang merah merupakan salah satu komoditas hortikultura yang mempunyai potensi untuk dikembangkan menjadi produk unggulan. Pemupukan silika diketahui dapat meningkatkan ketersediaan hara, kinerja pertumbuhan dan efisiensi hasil, serta toleransi terhadap tekanan biotik dan abiotik. Penelitian ini bertujuan untuk: (1) mengetahui tanggap fisiologis tanaman bawang merah terhadap pemberian pupuk silika alami pada tanah Inceptisol, (2) mengetahui tanggap fisiologis tanaman bawang merah terhadap cekaman kadar air pada tanah Inceptisol, dan (3) mengetahui tanggap fisiologis tanaman bawang merah terhadap interaksi antara pupuk silika alami dan cekaman kadar air pada tanah Inceptisol. Penelitian ini dilaksanakan bulan September 2020 sampai Januari 2021 di screen house experimental farm, Laboratorium Agronomi dan Hortikultura, dan Laboratorium Ilmu Tanah Fakulas Pertanian Universitas Jenderal Soedirman, Purwokerto. Penelitian ini dilakukan dengan rancangan acak kelompok (RAK) faktorial yang terdiri atas dua faktor perlakuan dengan 3 ulangan, faktor pertama adalah perlakuan dosis pupuk silika yang terdiri atas 4 taraf dan faktor kedua adalah perlakuan cekaman kadar air yang terdiri atas 3 taraf. Hasil penelitian menunjukkan bahwa pemupukan silika alami meningkatkan kadar prolin daun secara nyata. Pemupukan silika alami tidak meningkatkan ketebalan daun, kerapatan stomata, kadar klorofil daun total, kadar air relatif, kadar air umbi, dan bobot segar akar secara nyata, namun ada kecenderungan peningkatan pada beberapa variabel tersebut. Cekaman kadar air meningkatkan kadar prolin daun serta menurunkan kadar air umbi dan bobot segar akar secara nyata. Tidak terdapat interaksi antara pemupukan silika alami dan cekaman kadar air.

Abtrak (Bhs. Inggris)

Shallots are one of the horticultural commodities that have the potential to be developed into superior products. Silica fertilization is known to increase nutrient availability, growth performance, yield efficiency, tolerance to biotic and abiotic stresses. This research was conducted to: (1) determine the physiological response of shallot plants to the application of natural silica fertilizer on Inceptisol soil, (2) determine the physiological response of shallot plants to water stress in Inceptisol soil, and (3) determine the physiological response of shallot plants on the interaction between natural silica fertilizer and water stress in Inceptisol soil. This research was conducted from September 2020 to January 2021 at the screen house experimental farm, Laboratory of Agronomy and Horticulture, and Laboratory of Soil Science, Faculty of Agriculture, Jenderal Soedirman University, Purwokerto. This research was conducted with a factorial randomized block design (RBD) consisting of two treatment factors with 3 replications, the first factor was the dose of silica fertilizer treatment which consisted of 4 levels and the second factor was the water stress treatment consisted of 3 levels. The results showed that natural silica fertilization increased leaf proline levels significantly. Natural silica fertilization did not significantly increase leaf thickness, stomata density, total leaf chlorophyll content, relative water content, tuber water content, and root fresh weight, but there was a tendency to increase in some of these variables. Water stress increased leaf proline content and reduced tuber water content and root fresh weight significantly. There was no interaction between natural silica fertilization and water stress.

Kata kunci

Pembimbing 1

Pembimbing 2

Pembimbing 3

Tahun

Jumlah Halaman