Download or read book Effect of Early season Growth Regulator Applications on Yield and Internal Quality of Russet Burbank Potatoes written by David Charles Koller and published by . This book was released on 1984 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 29 (thesis year 1984) a total of 12,637 theses titles from 23 Canadian and 202 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 29 reports theses submitted in 1984, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.

Download or read book Potato Physiology written by Paul H. Li and published by . This book was released on 1985 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physiological Ageing of Russet Burbank Seed Potatoes written by Delila M. Thompson and published by . This book was released on 1986 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: During physiological ageing of seed potatoes, the stored tuber undergoes certain biochemical changes which cause the breaking of dormancy and the initiation of bud growth. The ageing process can be manipulated through storage temperature and duration. Higher temperatures usually accelerate seed tuber ageing. In order to define the process of physiological ageing and develop optimum ageing treatments, seed potatoes were stored at 4.4°C and then warmed to either 10.0°C (1984) or 15.6°C (1985) for 0, 2, 5, and 8 weeks prior to planting. Levels of total, reducing, and sucrose sugars, respiratory activity, free amino acids, soluble protein, and phosphorylase activity were monitored weekly. Field studies were conducted to determine the effects of seed storage temperature and duration on plant development and yield. Three sites with different lengths of growing season were selected. Warming seed to 10.0°C and 15.6°C greatly accelerated sprouting ability in storage. Apical dominance was evident in seed which had been stored for long periods at these elevated temperatures. Total, reducing, and sucrose sugars declined during storage at 10.0°C, indicating both a suppressing effect of elevated temperature on sugar fractions and increasing metabolic energy demands. Conversely, both reducing and total sugars increased over time in seed held at 4.4°C, eventually reaching a constant level. Sucrose declined to a minimum and then fluctuated randomly with additional time at this temperature. Phosphorylase activity increased dramatically approximately five weeks after testing began in tubers stored at both 4.4°C and 15.6°C. Activity then declined two weeks later and remained constant throughout the study. Free amino acids decreased to a low level during storage at both temperatures, reached a constant state, and then slowly increased with additional storage time. Soluble protein levels initially increased during storage, but then declined. Respiratory activity, as indicated by the production of formazan, remained fairly constant throughout storage at both temperatures. Plant stands were not affected by storage temperature. Seed warmed to 10.0°C and 15.6°C generally emerged faster and established a canopy earlier in the season than seed held at at 4.4°C. Differences in plant size and canopy density diminished rapidly as the season progressed. Numbers of aboveground stems per hill increased with time at 10.0°C and 15.6°C. Storage treatment did not affect time of tuber set or plant senescence. Storage treatments significantly affected yields at one loca tion in 1984. Seed held continuously at 4.4°C produced more undersized tubers than any other treatment at Corvallis (medium length season). Treatments significantly affected yields at all three sites in 1985. At Powell Butte (short season), seed held at 4.4°C yielded more than seed warmed to 15.6°C, and produced significantly higher yields of U.S. No. 1 tubers than any other treatment. Seed warmed at 15.6°C for 2 weeks yielded significantly more culls than any other treatment. At Corvallis, (medium length season) seed stored at 15.6°C for 5 weeks produced significantly higher total yields than any other treatment. Yields of U.S. No. 1 tubers at Hermiston (long season) were higher for seed held continuously at 4.4°C, while seed warmed at 15.6°C for 5 weeks produced more undersized tubers than any other treatment. It appears that length of growing season, plant growth patterns, and plant types combine to determine yield response to seed conditioning. Seed conditioned at higher temperatures emerged early, produced large numbers of aboveground stems per hill, and performed best in an area with a medium growing season, but did not appear to be well suited for areas of either short or long seasons. Seed held continuously at 4.4°C emerged late, produced few above-ground stems per hill, and produced higher U.S. No. 1 yields than seed conditioned at the higher temperatures, in areas with a long or short season. Powell Butte (short season) experienced a late spring frost in 1985. It is possible that due to less advanced foliage growth at the time, plants from seed held at 4.4°C were not as severely damaged as the plants from warmed seed, explaining high yields produced by cool stored seed in this short season area.

Download or read book Some Factors Affecting the Yield and Quality of the Russet Burbank Potato when Grown in Wisconsin written by J. A. Schoenemann and published by . This book was released on 1954 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Zone Tillage on the Growth and Development of Russet Burbank Potatoes written by Charlotte Gaye Burpee and published by . This book was released on 1989 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Fertilization on Growth Yield Chemical Composition and Processing Quality of Potatoes written by Tarun Kumar Ghosh and published by . This book was released on 1960 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Irrigation Effects on the Growth Yield and Quality of the Russet Burbank Potato 1983 84 written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plant Growth Regulator Abstracts written by and published by . This book was released on 1991 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agrindex written by and published by . This book was released on 1993 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Irrigation on Quality and Yield of Russet Burbank Potatoes written by Canada. Agriculture Development Branch and published by . This book was released on 1988 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Borax in Fertilizer on the Growth and Yield of Potatoes written by Bailey Edgar Brown and published by . This book was released on 1922 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pp. 7.

Download or read book The Effect of Micronutrient Fertilization on the Growth Yield and Composition of Russet Burbank Potatoes written by David Lancaster Brown and published by . This book was released on 1965 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Russet Burbank Response to Nitrogen Fertilization and Planting Date written by Robert Kim Thornton and published by . This book was released on 1997 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies addressed impacts of planting dates and variable N applications on numbers and size of Russet Burbank stems and stolon nodal position in relation to tuber growth and levels of hollow heart (HH) and brown center (BC). Low preplant N regimes produced larger tubers and final yields, and less HH and BC than the high N regime. Reduced preplant N regimes also lowered tuber grade and specific gravity. Negative effects of the low preplant N regime were offset by delaying planting or beginning application of post-BC initiation N earlier. Stem size influenced plants season-long and affected tuber size and yield, early- and late-season HHBC development, and HHBC dissipation and severity. These responses were related more to stem and tuber growth than to weather. Levels of HHBC increased as similar-sized tubers grew. Tubers expressed less HHBC, regardless of size or stolon nodal position, when growing at different rates or times than most other tubers. HHBC development began, declined, and increased at different times during the season. Tuber susceptibility to HHIBC increased throughout the season in association with increased stem size and/or reduced stems per plant. Plants with 3 or more stems produced higher tuber yields but less HHBC than plants with fewer than 3 stems. Large-stem tubers from 1- and 2-stem plants grew faster and were more susceptible to HHBC than large-stem tubers on plants with 3 or more stems. Delayed plantings reduced HHBC and increased stem numbers per plant, thereby reducing the proportion of high yielding, HHBC susceptible stem-types. Delayed plantings did not affect the growth stage(s) during which tubers became susceptible. Preplant N regime did not affect stem numbers per plant, but HHBC was reduced by low regimes. Low preplant N plants exhibited equal or increased tuber growth rates, but reduced vine biomass compared to high preplant N plants; consequently, large stems, especially from single- and double-stem plants, showed more BC dissipation, resulting in less early-season HHBC compared to high preplant N plants. Late-season HFIBC was less affected by N treatment.

Download or read book Potato Yield and Grade as Influenced by Nitrogen Fertilizer and Irrigation Frequency written by Clinton Cecil Jacks and published by . This book was released on 1972 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of irrigation frequencies and rates and time of nitrogen fertilizer application on the yields, grades and N status of Russet Burbank potatoes were determined on a sandy soil near Hermiston, Oregon. Increasing the frequency of irrigation from 72 to 48 to 12-hours did not result in increases of yields or improved grades of tubers during the growing season. Optimum yields and grades were obtained when 196 lbs. N/A was applied in a single fertilizer application with 88 lbs. N/A in the soil as nitrate-N. This N treatment corresponded to 0.58, 0.42, 0.46, 0.32 and 0.17 percent petiole nitrate-N on July 6, July 21, August 4, August 24 and September 9 sampling dates, respectively. Split N fertilizer applications resulted in higher petiole nitrate-N levels during the growing season, similar total yields and lower yields of U.S. No. 1 tubers than treatments in which all of the fertilizer was applied at planting. The higher petiole nitrate-N levels delayed tuber maturity and subsequently the split N applications were influenced by the high soil and air temperatures in July and August and formed increased yields of off-shape tubers. This emphasizes the importance of adequate N early in the growing season in order to prevent delayed vine and tuber growth and the importance of even assimilation of nutrients by the tubers in later stages of development.

Download or read book Factors Affecting the Yield and Grade of Russet Burbank Potatoes written by Robert Kunkel and published by . This book was released on 1957 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: