Zroznicowanie morfologiczne, biologiczne i chemiczne Alopecurus pratensis L. a mozliwosci hodowli w aspekcie paszowym i nasiennym.

The aim of performed experiments was to estimate variability of morphological, biological and chemical properties of Alopecurus pratensis and determine of possibilities of breeding for fodder and seed production purposes. In years 1994-1996, investigations were carried out on ecotypes and breeding materials of Brudzyński variety from own collection. The population of Alopecurus pratensis exhibits considerable variability within a wide range of traits which creates substantial selection possibilities of valuable material for breeding. The most interesting are two groups of plants isolated in ecotypes as well as in the Brudzyński variety. The first of them, tentatively called „green form", is characterised by a higher share of vegetative shoots in the tussock structure, bigger area of leaf blades, LAI index and yield and, consequently, better chemical composition and digestibility in comparison with plants of the "blue-green form". The green form creates considerable breeding possibilities of Alopecurus pratensis for forage purposcs. On the other hand, the blue-green form is characterised by a longer inflorescences, higher sced yield per tussock and unit area, smaller seed shedding and share of no shedding inflorescences per tussock at the moment of harvest. For that reason, the blue-green form is more suitable for breeding of this form for seed production purposes.