ISHS Acta Horticulturae 215: Seed Research in Horticulture
PEA SEED QUALITY AND SEEDLING EMERGENCE IN THE FIELD |
| Authors: | K.W. Duczmal, L. Minicka |
| Abstract:
Pea seed of various lots of different cultivars, age and seed categories was investigated. The standard germination test, tetrazolium test (0,2 and 1,0% solution) and electroconductivity were used. Ascochyta sp. was detected. Dressed and not dressed seeds were sown in early and late spring. All laboratory tests were shown to be inadequate as a good means of identifying seed lots that perform poorly under field conditions. Among these tetrazolium tests (0,2%) electroconductivity and standard germination were giving similar results and were better correlated with seedling emergence than 1,0% tetrazolium test. It is suggested to use 0,2% tetrazolium solution instead of 1,0% according to the ISTA rules. It was demonstrated that the seed- or soil-borne fungi were often the cause of lack of correlation between laboratory tests and seedling emergence in the field. | |
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