Modifikasi Suhu Uji Pemunculan Radikula  untuk Mempersingkat Pengujian Vigor Benih Jagung

Aghniya  Ul Khusna; Ahmad Zamzami; Satriyas Ilyas

doi:10.24831/jai.v49i3.39053

Aghniya Ul Khusna Program Studi Agronomi dan Hortikultura, Departemen Agronomi dan Hortikultura, Institut Pertanian Bogor
Ahmad Zamzami Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (IPB University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
Satriyas Ilyas Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (IPB University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia

DOI: https://doi.org/10.24831/jai.v49i3.39053

Abstract

Radicle emergence (RE) is a rapid vigor test recommended by ISTA in 2014 for corn seeds at 20 oC for 66 hours. The purpose of this study was to develop an RE test of corn seeds at 25 °C and determine a single observation time to shorten the period of the vigor test. The experiments were conducted at IPB from December 2019 to March 2020. The experimental design used in the RE test was split-plot, with nine seed lots (cultivars) as main plots and 14 observation times (27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, and 66 hours after sowing) as subplots. The completely randomized block design with one factor (seed lots) was used in the laboratory and field experiments. The result of the RE test was then correlated with seed and seedling quality parameters. The experimental results revealed that the RE test on corn seeds using between paper germinating method at 25 °C and observed at 51 hours ± 15 minutes after sowing, was closely correlated and could predict the normal germination percentage, mean germination time, vigor index, speed of germination, and mean emergence time.

Keywords: correlation, cultivar, normal germination percentage, seed lot, seed vigor, seedling vigor