Soybean Production Under Drought Stress with Application of Bradyrhizobium  japonicum  Induced by Genistein

Yaya Hasanah and Nini Rahmawati

1Agroecotechnology, University of Sumatera Utara.

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A research about production of soybean under drought stress with the application of Bradyrhizobium japonicum induced by genistein was conducted in green house, Faculty of Agriculture, University of Sumatera Utara. The aim of the research was to study the role of       B. japonicum induced by genistein on soybean production. The experiment  used Randomized Complete Block Design Factorial with three factors. The first factor was genistein treatments consisted of without and with genistein. The second factor  was          B. japonicum consisted of  without B. japonicum, B. japonicum isolate 1, B. japonicum isolate 2 and B. japonicum isolate 3.  The third factor  was soil water content condition namely 40%, 60% and 80% of field capacity.  The parameters observed were plant growth rate, relative growth rate, nett assimilation rate, dry weight/plant and dry weight of 100 seeds.  The result research showed that the treatment of interaction between B. japonicum induced  genistein under 80% of field capacity gave the higher plant growth rate, plant growth rate, relative growth rate, nett assimilation rate and dry weight of 100 seeds.

Keywords:  Bradyrhizobium japonicum, production, soybean

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