Pemuliaan Mutasi untuk Perbaikan terhadap Umur dan Produktivitas pada Kedelai

Abstract

<p>To support the government policy in<br />improving soybean production, it is suggested to plant early<br />maturing (&lt;80 days), drought tolerant and high yielding<br />varieties to be applied in the cropping system of rice-ricesoybean<br />and rice-rice-rice-soybean in lowland, and in<br />dryland cropping system of rice-soybean or rice-other<br />palawija crops. Mutation breeding in soybean for early<br />maturity and high productivity in soybean can be applied to<br />obtain some new varieties. The breeding procedures<br />included selection using bulk method for M1 population,<br />followed by the pedigree method for M2-M5 generations.<br />Evaluation of uniformity (homozygous) of lines is done on<br />the M4 generation. Yield and adaption testing are conducted<br />during M5-M8 generations. Through mutation breeding early<br />maturity soybean varieties were released elsewhere. In<br />national research institutes such as The National Nuclear<br />Energy Agency (Batan) Indonesia, soybean mutation breeding<br />activities were begun since 1972, while in Indonesian<br />Center for Agricultural Biotechnology and Genetic<br />Resources Research and Development (ICABIOGRAD), it<br />was started in 2009. Batan has released two early maturing<br />soybean varieties through seed irradiation such as Tengger<br />in 1991 and Meratus in 1998. While in 2011 ICABIOGRAD<br />through irradiation of calli-derived embryo zygotic has<br />selected 50 early maturing and potentially yielding soybean<br />mutant lines. While through seed irradiation in 2012, 15<br />soybean advanced lines that matured earlier and<br />demontrated higher yield were also obtained.</p>