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Germination of Seeds of Cirsium arvense (L.) Scop.
Author(s) -
KUMAR V.,
IRVINE DAVID E. G.
Publication year - 1971
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.1365-3180.1971.tb00998.x
Subject(s) - cirsium arvense , achene , germination , weed , dormancy , biology , seed dormancy , thistle , botany , agronomy
Cirsium arvense (L.) Scop. is a persistent and troublesome weed which reproduces vegetatively. Establishment from seeds (achenes) is considered negligible under natural conditions in the United Kingdom (Bates, 1946), although germination under normal farm conditions was found to be good in America (Hansen, 1918). Korsmo (1930) in Norway and Hayden (1934) in Iowa found that the seeds had no dormancy period, but Niethammer (1934) and Zilke (1967) recorded seed dormancy in Germany and South Dakota respectively. An examination was therefore made of some of the factors which may regulate the germination of seeds of C. arvense in this country.