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Creator:: Cao, Weixing
Abstract:: An understanding of the effect of environment on phyllochron (degree-days between two successive leaves) is necessary to model cereal crop canopy growth. This study was designed to investigate the relationships of phyllochron to temperatures and daylengths in winter wheat (Triticum aestivum L.) and spring barley (Hordeum vulgare L.). A series...
Resource Type:: Dissertation
Full Text:: to Drs. W. E. Kronstad, P. J. Breen, R. G. Petersen, and R. Dick for serving on my graduate

Creator:: Chuhe, Chen
Abstract:: To study the grain filling traits in wheat, two winter cultivars and four spring cultivars were selected. The resulting Fl, F2, F3 and backcrosses were tested. The following measurements were made: a) Visual traits for physiological maturity (PM), b) Grain dry weight accumulation, c) Regression models for grain filling period,...
Resource Type:: Dissertation
Full Text:: populations for grain filling rate (R), effective duration (D), and grain weight (W) grown in greenhouse (G

Creator:: Chastain, Thomas G.
Abstract:: Orchardgrass and tall fescue seed crops are commonly springplanted in Oregon, but do not produce a marketable crop during the first growing season. Establishing orchardgrass and tall fescue with cereal companion crops would provide income during the seeding year and could increase seed production profits. This study was conducted to...
Resource Type:: Dissertation
Full Text:: crops with cereal companion crops AN ABSTRACT OF THE THESIS OF Thomas G. Chastain for the degree of

Creator:: Diop, Amadou Makhtar
Abstract:: Field, screenhouse, and laboratory experiments were conducted to study weed interference in rice grown on hydromorphic soils at the International Institute of Tropical Agriculture (IITA) at Ibadan, Nigeria. Rice and weeds emerged at the same time, 1 week after planting. Weed dry weight was significantly reduced when the crop was...
Resource Type:: Dissertation
Full Text:: Burrill, G. Crabtree, and D. C. England for their time and support they have given me. I also thank R. D

Creator:: Das, Modan Kumar
Resource Type:: Dissertation
Full Text:: committee Drs. Patrick M. Hayes, Christopher C. Mundt, Roger G. Petersen, David R. Thomas, and Thomas E

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