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Evaluation of Plant Growth Regulators on Wheat in Arizona, 1987Tickes, B., Ottman, M. J. 09 1900 (has links)
Plant growth regulators are applied to small grains to decrease lodging which can adversely affect crop growth and yield. Wheat is intensively managed in Arizona, and lodging can be a problem. Chlormequat and ethephon were applied at various rates and times in six studies in 1987 to evaluate their use on Arizona's semi -dwarf cultivars with respect to lodging plant height, yield components and grain yield The results indicated that growth regulators applied at the recommended rates and times may decrease plant height and decrease kernel weight. However, the influence of growth regulator treatments on tiller number, head number, kernel number, and grain yield was not demonstrated. The ambiguous results obtained suggest our efforts need to be directed toward documenting the extent of lodging in the state, studying the effects of lodging and predicting when lodging will occur.
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Drip Irrigation: The BasicsCall, Robert, Daily, Cado 03 1900 (has links)
2 pp. / Drip irrigation is the slow, measured application of waer through devices called emitters. Now a wide variety of quality products has been developed to make drip irrigation reliable and easy.
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Effect of PIX and BALANCE on Upland CottonBriggs, R. E., Nelson, J. M., Ledbetter, C. A. 02 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.
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Bolls Affect Fruit Retention at Distant SitesGuinn, Gene, Brummett, Don 02 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.
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Cotton Harvest Aid Chemical Test, Marana, 1984Briggs, R. E., Kittock, D. L., Ledbetter, C. A. 02 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.
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The Effects of Three Plant Growth Substances on DPL 90Hofmann, Wallace C., Else, Peter T., Tabo, Ramadjita 02 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.
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Yield and Economical Outcome of Different Rates of Ethephon (PREPtm) to Short and Long Staple CottonClark, L. J. 02 1900 (has links)
The 1985 and 1986 Cotton Reports have the same publication and P-Series numbers.
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188 |
Hormonal Changes in Relation to CutoutGuinn, G., Brummett, D. L. 03 1900 (has links)
Experiments were conducted in 1987 and 1988 to determine whether hormonal changes may be involved in the decreases in growth and boll retention commonly referred to as cutout. Nitrogen deficiency decreased the auxin content and growth of fruiting branches. The auxin contents of fruiting branches, squares, and bolls decreased during the season as the plants entered cutout. ABA in bolls increased slightly, but the ABA content of squares and fruiting branches showed no consistent changes. The results indicate that decreases in auxin (IAA) may be involved in cutout.
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Evaluation of PIX Multiple Application Treatments on Upland and Pima Cotton in Arizona, 1988Silvertooth, J. C., Howell, D. R., Farr, C. R., Malcuit, J. E. 03 1900 (has links)
Four field experiments were conducted in Arizona in 1988 to evaluate the effects of various multiple application treatment combinations of PIX on the growth and development, as well as the lint yields of both upland and pima cotton. Plant height was significantly reduced (P ≤ 0.05) in some FIX treatments in comparison to the checks for short periods of time after the treatment applications. Those effects did not persist, nor did they translate into any significant positive differences among treatments in terms of lint yields for either of the upland or pima experiments.
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Growth Regulator Test on Upland Cotton at the Marana Agricultural Center, 1988Briggs, R. E., Nelson, J. M. 03 1900 (has links)
A field study was conducted at the Marana Agricultural Center to evaluate the effectiveness of growth regulators on Deltapine 90 cotton. The Pix treatment yielded significantly higher than the check and any of the other treatments.
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