Polycross progenies test of Lotus uliginosus. I. In mixture with annual ryegrass II. With individual progeny lines and cv. Maku

Abstract

Two polycross tests of Lotus uliginosus Schkuhr., with annual ryegrass (Lolium multiflorum Lam.) and with individual progeny lines, were evaluated under the aspects of yield, growth rate and quality, during April/79 to March/81, in Guaíba, RS, Brazil. In test I, the progenies were sensible to ryegrass competition and the establishment was unsatisfactory. In the second year, during a dry period, the plants died and could not be adequately evaluated. In test II cv. Maku differed significantly (P<0.05) in the initial number of plant/m^-1 in relation to the progenies 78-129; 78-147; 78-103; 78-118. In relation to mean height growth in cm/week^-1 and mean height of plant in cm, cv. Maku differed significantly (P<0.05) from all the progenies. The mean total dry matter yield results in kg/ha^-1 and flowering in days after seeding were significantly different for the treatments (Duncan P<0.05). Cv. Maku was the latest of all, and yielded 2,071 kg/ha^-1.