Figure 1.

The influence of soil drought stress on the water content in flower abscission zone (AZ) [%] (A) and flower abortion rate (%) (B) in Lupinus luteus. Control plants were growing in soil of optimal moisture (70% holding capacity; WHC). In parallel, part of plants was subjected to drought conditions for 2 weeks (25% WHC). Plant material for water content measurements was collected on the 48th and 51st days of cultivation (A). The number of aborted flowers per one lupine was counted and the data were presented as averages of 15 technical replicates ± SE. Significant differences to stress plants in comparison to control are indicated as * p < 0,05, ** p < 0.01 (Student’s t-test).