Germination of grasses and shrubs under various water stress and temperature conditions

BONVISSUTO GL, CA BUSSO

Phyton, International Journal of Experimental Botany

Fundación Rómulo Raggio

Lugar: Buenos Aires; Año: 2007 vol. 76 p. 119 - 131

The effects of various temperature combinations and water potentials were determined on the germination of Atriplex lampa Gili, ex Moquin, Larrea divaricata Cav., Leymus erianthus (Phil.) Dubcovsky, Stipa neaei Nees ex Steudel and Poa ligularis Nees ap. Steudel under controlled conditions. The tested hypothesis was that seed germination increases with increasing temperatures and water potentials in A. lampa, L. divaricata, L. erianthus, S. neaei and P. ligularis, and that time to reach 50% of total germination is greater at lower than higher water potentials. PEG 2000 was used to impose water stress conditions. In general, obtained results conducted to accept the posted hyphotesis.,