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Some Effects of Daylength on Seedling Growth and Nodulation in Birdsfoot Trefoil 1
Author(s) -
McKee Guy W.
Publication year - 1962
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1962.0011183x000200040012x
Subject(s) - seedling , citation , biology , trefoil , south carolina , library science , horticulture , agronomy , computer science , political science , public administration
N ADDITION to flowering, many plant growth re1 sponses are controlled by photoperiod interacting with other factors (1, 6, 11). Daylength has been reported to affect nodulation in red clover ( 8 ) , soybeans (2, 7, 9 ) , black locust trees ( 5 ) , and peas (7) . Nodule number and nodular mass in soybeans vary directly with daylength (10). This paper reports the seedling growth and nodulation responses of birdsfoot trefoil, Lotus cortzicl.*kutus L., from seven seed sources exposed to six different photoperiodic treatments. The seven seed sources included two varieties of domestic origin, Empire and Viking, and five European sources ranging in latitude of origin from approximately 44O to 56" N. In Europe, birdsfoot trefoil is widespread from the Mediterranean to the Baltic ( 3 ) . Data were obtained on plant color, growth habit, height, top and root weight, stem diameter, and nodulation status.