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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
681

Alfalfa Varieties from the 1920s to the 1980s: Comparison of Forage Yield During the Seedling Year

Smith, S. E., Conta, D. M. 09 1900 (has links)
No description available.
682

Yield and Quality of Alfalfa Varieties at the Mohave Valley, 1986-1987

Grumbles, R., Ottman, M., Wakimoto, V. 09 1900 (has links)
Four major non - dormant alfalfa varieties were tested over 1986 and 1987. No differences in yield or quality of the varieties were determined.
683

Alfalfa Variety Trial in Greenlee County, 1987

DeRosa, E., Clark, L. 09 1900 (has links)
Ten alfalfa varieties ranging from very non - dormant to moderately dominant were compared over two seasons. Significant differences were observed between yields of top varieties from 1986 to 1987. Baron, the highest yielding variety for 1986 ranked 3rd in 1987, with Valiant moving from seventh to first in 1987. Overall yields increased from seven tons in 1986 to almost eleven tons per acre in 1987. The previous county average was 5.5 ton per acre.
684

Improved Regrowth Salt Tolerance in Alfalfa

Johnson, D. W., Smith, S. E., Dobrenz, A. K. 09 1900 (has links)
No description available.
685

Progress in the Development of Salt Tolerance in Alfalfa

McKimmie, T., Dobrenz, A. K., Malchow, P. L. 09 1900 (has links)
Increasing crop salt tolerance can mean higher yields on irrigated farmland and salt -affected soils. Three cycles of selection were made for growth of alfalfa seedlings under 7500 ppm NaCl. Comparison of parent and selected populations was made for yield and germination under saline conditions. Yield of the last cycle was significantly improved. Germination of the last two cycles was higher than that of the parent and cycle 1.
686

Alfalfa Variety Trial in Greenlee County, 1988

Clark, L. J., DeRosa, E. 09 1900 (has links)
For the past three years, ten alfalfa varieties have been grown and yields recorded. Yields in excess of 9 tons per acre were harvested in 1988 on 7 of the 10 varieties. Baron, a moderately nondormant variety, was the highest yielding variety for the three years, with an average yield of 8.9 tons per acre.
687

Alfalfa Variety Demonstration at the Safford Agricultural Center, 1988

Clark, L. J., Cluff, R. E., Carpenter, E. W. 09 1900 (has links)
A new alfalfa variety trial was planted in the fall of 1987to replace the previous four-year trial. The top varieties from the previous trial were placed in the new trial, along with new, promising varieties. A single year's data is insufficient to judge the performance of a variety during its useful years of production. The data simply indicate performance in their first year. Pioneer 5929, the variety that had the best overall yield in the previous trial (1), performed well in this trial as well. However, Mecca, a new variety from Plant Genetics, Inc., had the highest yield.
688

Feed Wheat Variety Demonstration in Graham County, 1989

Clark, L. J., Cluff, R. E. 09 1900 (has links)
Two wheat varieties were grown in Graham county as a follow -up to a previous field demonstration. AC79-97, a red wheat developed by the University of Arizona for the Safford area, yielded 6719 pounds per acre, compared with 6359 pounds per acre for Super-X. The protein differential made the crop values even more important than the yield comparison. AC79-97 produced $454 per acre, compared to $423 for Super-X. Using two year's data, AC79-97 produced 85 more pounds of protein per acre than Super-X, with a protein supplement replacement value of $28 per acre.
689

Alfalfa Herbicide Trial Greenlee County, 1989

Clark, L. J., Heathman, E. S., DeRosa, E., Cluff, R. E. 09 1900 (has links)
Replicated herbicide experiments were carried out on alfalfa fields in Graham and Greenlee counties in the winter of 1989. Five herbicides were tested; tanzy mustard and (oxtail barley were the mails target weed species. Velpar L applied on at a rate of 4 pints per acre in 20 gallons of water provided the best control with 99% control of the broad -leafed weeds and 86% of the grassy weeds just prior to the first cutting. Better control of foxtail barley probably would have been achieved by several of the herbicides if they had been applied earlier, before the weeds germinated and /or if the materials had been incorporated by an adequate irrigation or rainfall.
690

Carbohydrates in Germination Salt Tolerant and Non-Salt Tolerant Alfalfa Seed

Dobrenz, A. K., Poteet, D. C., Miller, R. B., Smith, S. E. 09 1900 (has links)
Alfalfa which is extremely salt tolerant during germination has been developed by researchers at the University of Arizona Carbohydrates were analyzed in the original parental gemiplasm 'Mesa- Sirsa' and Cycle₅Syn₂ and Cycle₈Syn₂ seed to determine why this seed could germinate in extremely saline conditions. Raffinose and sucrose were both significantly higher in the salt -tolerant germplasm compared to the parental germplasm; however, the magnitude increase of these free sugars was not sufficient to explain the increased ability of the seed to absorb water in a stress environment. The galactomannan content was not different among the alfalfa germplasms.

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