Plant Material
Four soybean genotypes viz., PI342618B-drought-tolerant parent (DTP;Glycine soja Sieb. & Zucc.), NN86-4-drought-sensitive parent
(DSP; Glycine max L.), A214-drought-tolerant line (DTL) and
A195-drought-sensitive line (DSL) were used for investigation of drought
stress response in the present study. The A214/DTL and A195/DSL are two
introgression lines derived from NN86-4 × PI342618B cross through
repeated backcrossing of three times with the cultivated recurrent
parent NN86-4. All the plant materials were received from National
Center for Soybean Improvement, Nanjing Agricultural University, Jiangsu
Province, China.