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Observations on the effects of browning ( Polyspora Lini Laff.) of flax on seed production
Author(s) -
Colhoun John
Publication year - 1946
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1946.tb06310.x
Subject(s) - browning , biology , sowing , crop , horticulture , agronomy , botany
An account is given of observations made on the effects on seed production of the incidence of the browning phase of the disease of flax caused by Polyspora Lini Laff. The work was carried out during three seasons. Disinfection of seeds before sowing exercises an effect on the average weight of the well‐developed seeds harvested, and the results obtained show that the intensity of the attack of browning in crops is inversely correlated with the weight of 1000 well‐developed seeds. When poorly developed seeds are separated from the remainder at harvest, evidence obtained in one year suggests that the percentage number of such seeds may be directly related to the incidence of browning in the crop. It was found in each of two years that more of the poorly‐developed than of the well‐developed seeds were contaminated with P. Lini. Evidence available for one year suggests that the viability of well‐developed seeds is not related to the incidence of browning.