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Influence of Exogenous Fatty Acids on Cottonseed Germination
Author(s) -
BARTKOWSKI EDMUND J.,
KATTERMAN FRANK R. H.,
BUXTON DWAYNE R.
Publication year - 1978
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 - 10.1111/j.1399-3054.1978.tb08610.x
Subject(s) - radicle , germination , cottonseed , gossypium barbadense , fatty acid , oleic acid , chemistry , linoleic acid , palmitic acid , food science , biochemistry , botany , biology , gene
Effects of exogenous free fatty acid application on percentage germination and radicle length were investigated with more chill sensitive (Pima S‐4) and less chill sensitive (Pima S‐5) cottonseed ( Gossypium barbadense L.) at chilling (14°C) and optimal (34°C) temperatures. Of the organic solvents able to solubilize free fatty acids, aqueous solutions as high as 5% dimethyl sulfoxide did not adversely affect germination at 34°C. Palmitic, oleic and linoleic acids (120 μM ) were solubilized in 5% DMSO. At 14°C, percent germination of fatty acid treated Pima S‐5 significantly increased, while no difference was observed for Pima S‐4. Conversely, radicle length of fatty acid treated Pima S‐4 significantly increased especially with oleate and linoleate, while no difference was detected for Pima S‐5. Fatty acid supplementation influenced neither germination nor radicle length for Pima S‐4 and Pima S‐5 at 34°C.