EFFECT OF COMPETITIVE INTERACTIONS AND WATER STRESS ON THE MORPHOLOGICAL CHARACTERISTICS OF RED CLOVER (Trifolium pratense L.) CULTIVATED WITH SPRING BARLEY (Hordeum vulgare L.) Journal title: Acta Scientiarum Polonorum – Agricultura Authors: Kinga Treder, Magdalena Jastrzębska, Marta K. Kostrzewska, Przemysław Makowski, Maria Wanic Subject(s):