Premium
Einfluß von Blattspreite, Nährstoffen, Wasser und Licht auf den Wuchs der Achselknospen an isolierten Halmabschnitten von Paspalum distichum L
Author(s) -
LIU S.H.,
HSIAO A.I.,
QUICK W.A.
Publication year - 1991
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1991.tb01778.x
Subject(s) - nutrient , paspalum , biology , leaf blade , horticulture , botany , hoagland solution , transpiration , distilled water , axillary bud , photosynthesis , shoot , chemistry , explant culture , ecology , biochemistry , chromatography , in vitro
Summary: The presence of the leaf blade for 5 days or longer on isolated single‐node stem segments of Paspalum distichum with an adequate supply of nutrients, water and light, produced better axillary bud growth than was observed on those segments without the leaf blade. Presence or absence of the leaf blade had no effect on segments in distilled water. Segments in Hoagland's solution of any strength exhibited significantly more growth than those in distilled water. In one‐half or full‐strength Hoagland's solution, segments generally showed signifi cantly more growth than segments in lower strength solutions. Segments subjected to flooding, daily watering, submergence or hydro‐ponic treatments exhibited significantly more growth than the segments that were watered every 3 days. Segments with the leaf blade retained, and those exposed to constant light, showed significantly better growth than segments without an attached leaf blade, or without light. It is concluded that the interactions between leaf blade, water, nutrients and light, which favoured photosynthesis and reduced transpiration, increased axillary bud growth. This interaction may provide a survival mechanism for isolated stems of P. distichum , assisting its rapid spread in wetlands.