The dependence of germinating capacity of grass caryopsis on the nitrate concentration

agrostis stolonifera alopecurus pratensis arrhenatherum elatius dactylis glomerata etapas de desarrollo de la planta festuca arundinacea festuca pratensis festuca rubra germinability graine lolium multiflorum maturation nitrate nitrates nitratos peuplement semencier phleum pratense plant developmental stages poder germinativo rodal semillero seed stands seeds semilla trisetum flavescens