Flooding tolerance of herbage plants during the growing season

H÷fundur┌tgefandi┌tgßfußr┌tgßfusta­ur
Salo Yrj÷B˙na­arfÚlag ═slands, BŠndaskˇlinn ß Hvanneyri, Rannsˇknastofnun landb˙na­arins, Rannsˇknast÷­ SkˇgrŠktar rÝkisins, Tilraunast÷­ hßskˇlans Ý meinafrŠ­i, Vei­imßlastofnun1989ReykjavÝk
Rit┴rgangurT÷lubla­Bls.
B˙vÝsindi275-85

gr-buv2-sp.PDF

Frß vefstjˇra: Greinina Ý heild sinni er a­ finna Ý pdf-skjalinu hÚr a­ ofan

ABSTRACT

The flood tolerance of herbage plants during the growing season was studied in a pot experiment in 1984. One-year-old turfs were placed into 9-liter pots and submerged in a river in the spring, summer and autumn.

Flood tolerance was highly dependent on plant species, the time of flooding and the length of flooding. All of the herbage plants showed the highest susceptibility to summer flooding. The most tolerant plants were Alopecurns pratensis and Phalaris arundinacea. Festuca pratensis, Bromus inermis and Phleum pratense showed moderate tolerance to flooding. The legumes, Trifolium pratense and Trifolium hybridum were least tolerant to the anaerobic growing conditions.

Key words: flooding, grasses, legumes.

YFIRLIT

Flˇ­■ol t˙njurta yfir vaxtartÝmann

Flˇ­■ol nokkurra t˙njurta var rannsaka­ Ý pottatilraun ßri­ 1984. Eins ßrs torfur voru settar Ý 9-lÝtra potta og s÷kkt Ý ßrvatni a­ vori, sumri og hausti. Flˇ­■oli­ var mj÷g breytilegt milli tegunda og ßrstÝ­a. Allar tegundir hafa minnst flˇ­■ol a­ sumri. Flˇ­■olnustu tegundirnar eru hßli­agras og strandreyr. Hßvingull, sandfax og vallarfoxgras eru me­al■olin en rau­smßri og t˙nsmßri reyndust minnst flˇ­■olnar af ■eim tegundum sem rannsaka­ar voru.