Fig. 7.15 The root nodules formed on the roots of Lupinus varius L. plant that were planted in the laboratory (a). The root nodules on the roots of
the Lupinus varius L. plant that were planted in the field (b). It was large (2–3 cm in size) and clustered around the original root (Khalifa 2013)
Fig. 7.16 The growth of a
Rhizobium strain isolated from a
Lupinus varius L. plant in
different concentrations of NaCl.
(Khalifa 2013)
Fig. 7.17 The Melilotus
officinalis plant appears in the
field with its yellow flowers
(a and c), as do bacterial nodules
forming on its roots (b) (Ibrahim
et al. 2019)
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