Application of Rainfall and Temperature Probabilities to Cotton Production PDF Download
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Author: Bilbro Junior, J.D.
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Bilbro Junior, J.D.
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: J. D. Bilbro
Publisher:
ISBN:
Category : Cotton growing
Languages : en
Pages : 14
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Book Description
Author: John Stone
Publisher: Elsevier
ISBN: 0444601627
Category : Science
Languages : en
Pages : 331
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Book Description
Plant Modification for More Efficient Water Use is a compilation of the proceedings of the Symposium on Plant Modification for More Efficient Water Use. These proceedings aim to make significant progress in identifying the physiological and morphological characteristics of plants by providing considerable control of evapotranspiration and by exploring their possible manipulation. This book is divided into four parts focusing on genetic engineering, physiological and environmental factors, and modeling. The first part includes articles about breeding, genetic engineering, use of variety isogenes, genetic modification, and phenotype and drought tolerance in relation to efficient use of water. The second part presents articles about plant responses to water deficit, water-use efficiency, water stress, and drought resistance. It also provides articles on plant-water balance, carbon dioxide requirement, soil physical and chemical barriers, and soil temperature and air temperature. The third part describes models of plant growth for yield prediction; light models for estimating the shortwave radiation regime of plant canopies; and soil-plant-atmosphere model. In addition, this part includes a parametric analysis of the anatomy and physiology of the stomata. The last part offers a challenge on plant modification for more efficient water use.
Author:
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Category : Cosmic physics
Languages : en
Pages : 1770
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Book Description
Author: Patrick Hues Mell
Publisher:
ISBN:
Category : Cotton
Languages : en
Pages : 76
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Book Description
With data on weather and soil by southern State, with some detail for selected cities and foreign countries.
Author: Joel K. Miller
Publisher:
ISBN:
Category : Atmospheric temperature
Languages : en
Pages : 166
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Book Description
Author: American Society of Agricultural Engineers
Publisher:
ISBN:
Category : Agricultural engineering
Languages : en
Pages : 412
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Book Description
Author: Shakeel Ahmad
Publisher: Springer Nature
ISBN: 9811514720
Category : Technology & Engineering
Languages : en
Pages : 651
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Book Description
This book provides a comprehensive and systematic overview of the recent developments in cotton production and processing, including a number of genetic approaches, such as GM cotton for pest resistance, which have been hotly debated in recent decades. In the era of climate change, cotton is facing diverse abiotic stresses such as salinity, drought, toxic metals and environmental pollutants. As such, scientists are developing stress-tolerant cultivars using agronomic, genetic and molecular approaches. Gathering papers on these developments, this timely book is a valuable resource for a wide audience, including plant scientists, agronomists, soil scientists, botanists, environmental scientists and extention workers.
Author: Henry Ludwell Moore
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 200
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Author: Daniel D. Fromme
Publisher:
ISBN:
Category :
Languages : en
Pages :
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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.
