EFFECT OF NITROGEN AND PHOSPHORUS ON YIELD AND YELLOW BERRY DEVELOPMENT IN BREAD AND DURUM WHEAT

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dc.contributor.authorNegedu, Samuel
dc.date.accessioned2014-07-07T07:32:21Z
dc.date.available2014-07-07T07:32:21Z
dc.date.issued1976
dc.descriptionA Thesis Submitted to the Faculty of the DEPARTMENT OF SOILS, WATER AND ENGINEERING In Partial Fulfillment of the Requirements For the Degree of MASTER OF SCIENCE WITH A MAJOR IN SOIL AND WATER SCIENCE In the Graduate College THE UNIVERSITY OF ARIZONA 1978en_US
dc.description.abstractThis study was initiated to evaluate the effect of N and P fertilization on yield and yellow berry development in bread and durum wheat. Two wheat varieties, Cocorit 71 (durum) and Cajeme 71 (bread wheat), were grown under irrigation at The University of Arizona Experimental Farm, Marana, on Pima clay loam soil during the 1976-77 growing season. Twelve treatments involving four levels of N and three of P were arranged in a randomized block design with six replications. These were 0, 168, 252 and 336 kg N/ha and 0, 44.8 and 89.6 kg P/ha. Prior to harvest, samples were taken and analyzed for number of heads, head weight, straw weight, and grain weight. Grain yield was determined at harvest. Percent yellow berry content, number of grains per head and number of grains per 25 g were determined later. Yellow berry and vitreous grains were analyzed for N content. Grain yield increased with increased N and P but N in excess of 252 kg/ha decreased yields of both varieties slightly. The maximum grain yields of both varieties were associated with 89.6 kg P/ha. Yield increases were primarily due to production of more heads and grains as well as increase in grain weight per unit area. Percent yellow berry decreased with increased N with no significant effect of P. Percent N in yellow berry grains was generally lower than in vitreous grainsen_US
dc.identifier.urihttp://hdl.handle.net/123456789/5049
dc.language.isoenen_US
dc.subjectNITROGEN,en_US
dc.subjectPHOSPHORUS,en_US
dc.subjectYELLOW BERRY DEVELOPMENT,en_US
dc.subjectBREAD,en_US
dc.subjectDURUM WHEATen_US
dc.titleEFFECT OF NITROGEN AND PHOSPHORUS ON YIELD AND YELLOW BERRY DEVELOPMENT IN BREAD AND DURUM WHEATen_US
dc.typeThesisen_US
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