Fig. 4

The main effects of salinity level (A) and plasma dose (B) on nutrients degradability (%) of cowpea cv. GIZA-18. No-salinity, moderate salinity and high salinity: soil salinity at 3.0, 5.5 and 7.0 dS m− 1, respectively; PD0, PD1 and PD2: plasma dose of 0.0, 1.0, and 2.0 min, respectively. IVDDM: in vitro degradability of dry matter, IVDNDF: in vitro degradability of neutral detergent fiber and IVDADF: in vitro degradability of acid detergent fiber. Varied letters of columns points out that there are significant differences at 0.05 level of probability. Means were distinguished employing Duncan’s multiple range test (p ≤ 0.05).