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Response of Seedlings of Varieties of Orchardgrass, Dactylis glomerata L., to Photoperiod, Light Intensity, and Temperature 1
Author(s) -
Nittler L. W.,
Kenny T. J.,
Osborne Ethel
Publication year - 1963
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/cropsci1963.0011183x000300020008x
Subject(s) - dactylis glomerata , agricultural experiment station , biology , crop , photoperiodism , library science , horticulture , agriculture , botany , agronomy , poaceae , ecology , computer science
Contribution from the Department of Seed Investigations, New York State Agricultural Experiment Station, Cornell University, Geneva, New York. Approved by the Director for publication as Journal Paper No. 1308 June 22, 1962. This study was part of a Northeast Regional Project (NEM-22), a cooperative study involving agricultural experiment stations in the Northeast Region and was supported in part by regional funds. Miss Osborne's work on the project was financed in part by the National Science Foundation Teacher Research Participation Program. Received June 27, 1962. 'Associate Professor, Seed Technologist, New York State Agr. Exp. Sta., and Chairman of Science Department, Grosse Pointe University School, Grosse Pointe, Mich., respectively. methods of distinguishing varieties of orchardgrass to test their genetic purity and identity. To find ways of detecting differences among varieties, an experiment was designed to observe the vegetative development of orchardgrass in response to various environmental conditions in plant growth chambers. Since the number of tillers could easily be counted and since varietal differences in respect to tillering appeared to be relatively large, most of the research was devoted to the study of tiller development.