Download or read book Effect of Cotton Defoliation on Yield and Quality written by and published by . This book was released on 1961 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Cotton Defoliation on Yield and Quality written by and published by . This book was released on 1961 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Cotton Defoliation on Yield and Quality Classic Reprint written by William Hardy Tharp and published by Forgotten Books. This book was released on 2018-01-09 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effect of Cotton Defoliation on Yield and Quality At Marianna, Ark.; Stoneville, Miss; and Sikeston, Mo., series A tests were conducted exactly as planned. At the fourth - station, Saca ton, Ariz., the test was conducted according to plan except that half of each treatment plot received an. Early last irrigation and the remaining half a late last irrigation. A minimum plot size of 4 rows, 100 feet long, with only the center 2 rows treated and evaluated for harvest and other records, was planted for each treatment. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Effect of Cotton Defoliation on Yield and Quality written by and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Cotton Defoliation on Yield and Quality written by and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Cotton Defoliation on Yield and Quality written by and published by . This book was released on 1961 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production Research Report written by United States. Department of Agriculture and published by . This book was released on 1957 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of an Upper Temperature Threshold on Heat Unit Calculations Defoliation Timing Lint Yield and Fiber Quality in Cotton written by Daniel D. Fromme and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Crop managers need to determine the most profitable time to defoliate cotton (Gossypium hirsutum L.) in a high rainfall environment such as the coastal region of Texas. In cotton production, delaying defoliation exposes open bolls to a higher probability of rainfall, and thus, reduces lint yield and fiber quality. Premature defoliation, however, has detrimental affects on lint yield and fiber quality. A more recent method to determine defoliation is based on heat-unit (HU or DD15) accumulation after physiological cutout or five nodes above white flower (NAWF=5). Results have been inconsistent across a wide range of field environments when utilizing HU accumulation past cutout; therefore, adoption of this method has been limited. Many regions of the Cotton Belt have maximum day time temperatures during the growing season that are above optimum for maximum growth. Field studies were conducted for three consecutive growing seasons in the Brazos River Valley and Upper Gulf Coast regions of Texas. The purpose of this research was to identify an upper temperature threshold (UTT) for calculating degree days for defoliation timing. The experimental design consisted of a split-plot design with four replications. The main plots consisted of three upper temperature thresholds (32°C, 35°C, and no upper limit) and the subplots were five HU timings (361, 417, 472, 528, and 583) accumulated from date of cutout. Utilizing an UTT to calculate daily HU failed to explain differences in the optimum time to defoliate based on accumulated HU from cutout for the upper thresholds investigated. Accumulated HU had a significant impact, however, on defoliation timing. Comparison of the two locations showed that maximum lint yield was obtained at 472 HU and 52% open boll at Wharton County versus a maximum of 528 HU and 62% open boll for the Burleson County location. Employing the NACB=4 method to time defoliation at both locations would have resulted in premature application of harvest aids and reduced lint yields. No differences were observed in adjusted gross income values at Wharton County among the 417, 472, 528, and 583 HU treatments. For Burleson County, adjusted gross income peaked in value at 528 HU.
Download or read book Effects of Defoliation Harvesting and Ginning Practices on Micronaire Reading Fiber Properties Manufacturing Performance and Product Quality of El Paso Area Cotton Season 1960 61 written by Preston Edward LaFerney and published by . This book was released on 1965 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Defoliation Plant Maturity and Ginning Setup on Cotton Quality and Value in the Midsouth written by and published by . This book was released on 1976 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Defoliation Plant Maturity and Ginning Setup on Cotton Quality and Value in the Midsouth Classic Reprint written by Gary L. Barker and published by Forgotten Books. This book was released on 2018-09-10 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Effects of Defoliation, Plant Maturity, and Ginning Setup on Cotton Quality and Value in the Midsouth Porter and others (9) indicated that some of the advantages resulting from defoliation are higher harvesting efficiency, increased picking time per day, retardation of crop deterioration, reduction of insect population in the crop, and reduction of lint stain and trash content. They also gave some general tips concerning the ap plication of a defoliant. Thomas and Williamson (13) found that early and intermediate defoliation appeared to lower the fiber as judged by length, strength, Micro naire, and similar measurements and quantity of the crop harvested by the picker. Defoliation also tended to improve grade. Riley and Williamson (10) compared weather parameters in defoliated and untreated fields. They discovered that the relative humidity re mained at less than 50 percent for about an hour longer after sunrise in a defoliated field; these measurements indicate that defoliated cotton fields are drier in the daytime during the time of picking. They also found that the maximum temperature before frost averaged almost 5° F higher in the defoliated field and the minimum temperature 1° F lower. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Effect of an Upper Temperature Threshold on Heat Unit Calculations Defoliation Timing Lint Yield and Fiber Quality in Cotton written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Effect of an upper temperature threshold on heat unit calculations, defoliation timing, lint yield, and fiber quality in cotton.
Download or read book Some Effects of Late Defoliation on Cotton written by Clinton Albert Ludwig and published by . This book was released on 1927 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defining Optimal Defoliation and Harvest Timing for Various Fruiting Patterns of Cotton in North Carolina written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Upland Cotton (Gossypium hirsutum L.) is a perennial plant produced as an annual crop in North Carolina. Due to high variability in net returns, and narrow profit margins, growers must focus attention not only on lint yield but also on lint quality. Implementing sound agronomic practices, such as proper defoliation timing and harvest timing, may help maximize lint yield and fiber quality. Cotton is normally defoliated when 60 percent of the total harvestable bolls are open. It is hypothesized that defoliation could be initiated before 60 OBPD (% open bolls) if fruiting is compact, and in contrast, defoliation could be delayed beyond 60 OBPD if fruiting is extended. Two experiments were conducted in 2004 and 2005 at Upper Coastal Plains Research Station near Rocky Mount, North Carolina, to observe the effects of defoliation and harvest timings on crops of various levels of maturity or fruiting habits. One study involved plant growth regulator strategies to mimic compact, normal, and extended fruiting habits, respectively. The other study included three variety maturity groups to accomplish the various fruiting habits. The targeted defoliation timings in each study were 50, 70 and 90 OBPD and the targeted harvest timings were 14 days after defoliation and 28 days after defoliation. According to lint yield data in 2005 from the study involving plant growth regulator strategies, a crop with compact fruiting could be defoliated earlier than 60 OBPD without sacrificing yields. Delaying harvest for a crop defoliated early may help maximize yield and fiber length, whereas an early harvest may be more appropriate for a crop defoliated late, especially if significant amounts of rainfall are experienced. In 2005, micronaire values decreased 4% by delaying harvest, regardless of defoliation timing. Data also suggests that NACB (nodes above cracked boll) ~ 3 corresponded to maximum yields, especially in cases where mepiquat chloride was used. Data from the study involving variou.
Download or read book Cotton Physiology written by Jack R. Mauney and published by . This book was released on 1986 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The effects of different application dates of defoliants and desiccants on fiber quality spinning performance seed grade and yield of high plains cotton written by Harry Arthur and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Effects of Late Defoliation on Cotton written by Clinton Albert Ludwig and published by . This book was released on 1927 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
