Pengaruh Iradiasi Sinar Gamma pada Generasi Pertama (M1) untuk Mendapatkan Genotipe Unggul Baru Kedelai Toleran Kekeringan
Abstrak: Breeding to produce drought
tolerant varieties is one of main strategies in the soybean production
improvement. Some limitations in soybean conventional breeding are that it
takes long time and that drought tolerant characters are rarely found.
Therefore, the improvement of genetic variability is very important to assist
drought tolerant. Mutation through gamma irradiation is one of techniques to
improve genetic variability. The aims of this research were to obtain LD50,
study the influence of irradiation, and genetic of mutation. To determine the
LD50, seeds of soybean cv. Anjasmoro were irradiated with 0-800 Gy (100
interval) gamma rays. LD50 was calculated to be 202.5 Gy base on germination
rate. Therefore, in further experiment 200-400 Gy (50 interval) dosage were
used to irradiate seeds of soybean cv. Anjasmoro and Burangrang. Allirradiation
dosages (200-400 Gy) damage protoplast, decrease plant survival, prolong flowering
dan harvest time, decrease plant height, number of total and filled pod, number
of seeds, and improve the number of empty pod.
Penulis: WARID, NURUL KHUMAIDA,
AGUS PURWITO, DAN MUHAMMAD SYUKUR
Kode Jurnal: jppertaniandd170017
