Perubahan Karakter Agronomi Bawang Merah (Allium ascalonicum L.) Aksesi Simanindo Samosir Akibat Pemberian Berbagai Dosis Iradiasi Sinar Gamma

Jerianta Ginting, Nini Rahmawati, Mariti Mariati

Abstract


The aim of the research was to identify the variation of agronomy characters of shallot by giving
several doses of gamma rays. Research was conducted at  Jl. Selamat  Ketaren, Medan about 25
meters above sea level started from April until July 2014. Bulbs of shallot exposed to gamma rays
irradiation to several doses between 1-15 Gy (M
0
V
1
) using Co
60
source and unirradiated bulbs
(M
0
V
0
/control). The differencies of agronomic characters  between irradiated (M
) and
unirradited plants (M
0
V
) was analyze by t-test using minitab v.16. The results showed there were
differencies between irradiated plant and unirradiated plant. Shoot emerged time of irradiated plant
at doses 4-15 Gy were longer about 1,70 up to 5,36 days; shoot length and leaves number of
irradiated plant at doses 5-12 Gy in 6 weeks after planting (WAP) were shorter about 3,05 up to
23,93 cm and were reduced about 1,33%; up to 79,06% compared to control. Meanwhile,
harvesting age of irradiated plant at dose 4 Gy was reduced 2,05 days; weight and diameter per bulb
of irradiated plant at dose 3 Gy was increased about 0,66 g and  28,59% compared to control.
Keywords: shallot, irradiation, gamma rays
1
1

V
1

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Program studi Agroteknologi

Fakultas Pertanian

Jl. Prof. A. Sofyan no. 3

Kampus Universitas Sumatera Utara

Padang Bulan- 20155

Medan-Sumatera Utara

E ISSN (2337-6597)