Seedling emergence and establishment of falaris primed seeds in soil with several water conditions

Abstract

The initial plant growth of Phalaris aquatica L. cv. Sirolan to originate in seeds pretreated with two invigoration methods (hidropriming and osmopriming) growing in two water stress were evaluated. These three seeds types were sown in soil with different moisture levels: -0,03MPa (field capacity), -0,3MPa (light déficit) and 0,6MPa (severe deficit). Diary emergence and shoot growth (by leaf area and dry matter) and root growth (by lenght and dry matter) at four and seven-leaf stages were determined using a 3 x 3 factorial experiment with five replicates for each treatment.
Emergence of pretreated seeds and control was not different, but there were differences among soil moisture conditions, where the hidroprimed seeds showed a tendency to greater emergence velocity. The seed pretreatments did not affect the shoot growth (AF and MS) at any stage, there were differences only under stress moisture conditions at four-leaf stage. The root lenght increase in hidroprimed seeds growing at water stress and also their dry matter when its grown at field capacity.