Alam Faridul, Bhuiyan M A H, Alam Sadia Sabrina, Waghmode Tatoba R, Kim Pil Joo, Lee Yong Bok
a Division of Applied Life Science (BK21Plus Program) , Gyeongsang National University , Jinju , South Korea.
Biosci Biotechnol Biochem. 2015;79(10):1660-8. doi: 10.1080/09168451.2015.1044931. Epub 2015 May 21.
Soybean plants require high amounts of nitrogen, which are mainly obtained from biological nitrogen fixation. A field experiment was conducted by soybean (Glycine max) genotypes, growing two varieties (Shohag and BARI Soybean6) and two advanced lines (MTD10 and BGM02026) of soybean with or without Rhizobium sp. BARIRGm901 inoculation. Soybean plants of all genotypes inoculated with Rhizobium sp. BARIRGm901 produced greater nodule numbers, nodule weight, shoot and root biomass, and plant height than non-inoculated plants. Similarly, inoculated plants showed enhanced activity of nitrogenase (NA) enzyme, contributing to higher nitrogen fixation and assimilation, compared to non-inoculated soybean plants in both years. Plants inoculated with Rhizobium sp. BARIRGm901 also showed higher pod, stover, and seed yield than non-inoculated plants. Therefore, Rhizobium sp. BARIRGm901 established an effective symbiotic relationship with a range of soybean genotypes and thus increased the nodulation, growth, and yield of soybean grown in gray terrace soils in Bangladesh.
大豆植株需要大量氮素，主要通过生物固氮获取。以大豆（Glycine max）基因型开展了一项田间试验，种植两个大豆品种（Shohag和BARI Soybean6）以及两个大豆新品系（MTD10和BGM02026），部分接种根瘤菌BARIRGm901，部分未接种。与未接种的植株相比，所有接种根瘤菌BARIRGm901的大豆基因型植株产生的根瘤数量更多、根瘤重量更大、地上部和根部生物量更高、株高更高。同样，在两年中，与未接种的大豆植株相比，接种的植株表现出固氮酶（NA）活性增强，有助于更高的氮固定和同化。接种根瘤菌BARIRGm901的植株还表现出比未接种的植株更高的荚果、秸秆和种子产量。因此，根瘤菌BARIRGm901与一系列大豆基因型建立了有效的共生关系，从而提高了孟加拉国灰色梯田土壤中种植的大豆的结瘤、生长和产量。
