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- 11Spaner, Dean
- 2Brathwaite, R. A. I.
- 2Dixon, Peggy L.
- 2Mason, Heather E.
- 2Mather, Diane E.
- 1Ahmed, Iftikhar
Analysis of genotype-environment interactions from a genome-wide survey of quantitative trait loci in a barley populationDownload
The presence of genotype-environment interactions (GE) leads to the imperfect genetic correlation between the measurements of the same trait in different environments, thereby limiting the ability of plant breeders to identify superior breeding lines or best cultivars across the environments. We...
Collection and characterization of maize and upland rice populations cropped by resource-poor farmers in the uplands of Panama's Azuero regionDownload
The conservation of crop genetic resources is an international priority and requires the continued collection and characterization of farmer varieties. We collected and characterized maize and upland rice populations cropped by farmers in Panama's Azuero region. The objective of our study was to...
Competitive traits and the stability of wheat cultivars in differing natural weed environments on the northern Canadian prairiesDownload
Nine spring wheat cultivars, selected on the basis of height, tillering capacity and maturity, were grown in differing levels of natural weed presence at three locations in Edmonton and New Norway, Alberta between 2003 and 2004. The objectives of the study were to (1) identify competitive traits...
Vernalization response genes are known to contribute indirectly to grain yield by influencing flowering time, number of tillers and spikelets in sensitive wheat genotypes. There has been no report of the effect of vernalization on grain fill duration and grain weight in wheat. The objective of...
Immature field corn (Zea mays L.) grown for pre-lenten carnival festivities in Trinidad and Tobago can be a profitable cash crop. Hybrid and local unimproved open-pollinated corn were grown with two levels of weed control and fertilizer application late in the rainy season at two locations each...
Performance and stability of performance of spring wheat variety mixtures in organic and conventional management systems in western CanadaDownload
Wheat (Triticum aestivum L.) variety mixtures represent a relatively unexplored avenue for maintaining and stabilizing yield for both organic and conventional producers. The present study examined the responses of three Canadian western red spring wheat varieties in sole crop and in variety...
The effectiveness of felt egg traps to detect oviposition by the cabbage maggot, Delia radicum (L.), was studied under field conditions for cabbage, Brassica oleracea L. var. capitata L. (Brassicaceae), and rutabaga, Brassica napus L. var. napobrassica (L.) Reichenb. (Brassicaceae), in 1994 and...
Demand for organically produced food products is increasing rapidly in North America, driven by a perception that organic agriculture results in fewer negative environmental impacts and yields greater benefits for human health than conventional systems. Despite the increasing interest in organic...
Undersowing rutabaga with clover: Impact on Delia radicum (Diptera: Anthomyiidae) and its natural enemiesDownload
The cabbage maggot, Delia radicum (L.), is a serious pest of cruciferous crops in temperate regions of North America and Europe. The effects of undersowing rutabaga, Brassica napus L. subsp. rapifera Metzg. (Brassicaceae), with white clover, Trifolium repens L. (Leguminosae), on second-generation...
Three local varietal types of corn (Zea mays L.)—an improved landrace `ICTA Farm Corn' derived from the Tuson population, the open-pollinated `Across 7728', and the hybrid `Pioneer 3098'—were grown at three cash-crop farms in Trinidad, and evaluated as green corn for agronomic, quality, and...