These properties were also variable depending on growth conditions.
Changes in the late growth stage by water stress for both crops are comparable.
In addition, root productivity and starch content in roots were affected by both initial and late water stress.
Root yield and starch content when roots were subjected to initial water stress were lower than for those without initial water stress.
With the onset of rain the root yield increased (group ‘d’, Fig.3.5, ii) whereas starch content decreased (group ‘c’, Fig. 3.4, ii).