Premium
Involvement of a high irradiance response in photoinhibition of white clover seed germination at low water potential
Author(s) -
NiedźwiedźSiegień Irena,
Lewak Stanisław
Publication year - 1992
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1034/j.1399-3054.1992.860215.x
Subject(s) - trifolium repens , germination , photoinhibition , darkness , irradiance , white light , biology , botany , far red , horticulture , photosynthesis , red light , photosystem ii , physics , optics
Seeds of white clover ( Trifolium repens L., cv. Podkowa) were germinated at water potential ψ=−0.3 MPa in darkness, at 25°C. A short exposure to blue light (B) inhibited germination in a manner similar to that described earlier for red (R) and far‐red (FR) light (Niedźwiedź‐Siegień and Lewak 1989). No reversibility of B, R and FR effects was observed. Saturation irradiance and energy was the lowest for R and the highest for B. The reciprocity of irradiance versus time of exposure was observed only for non‐saturating irradiances of B, R and FR.