Effects of NaCl stress on the biochemical substances in Bt cotton as well as on the growth and development and adult oviposition selectivity of Helicoverpa armigera
By Fan Qin on Apr 22, 2019

Crop Protection Agronomy & physiology Biotechnology JCR

Background Recently, due to the development of food security strategies, cotton has been planted in inland saline-alkali dry soils or in coastal some saline-alkali soils in China. Under the condition, to comprehensively prevent and control Helicoverpa armigera in cotton fields with saline-alkali soils, it is important to study the larval growth an...

Twenty-Five Years after Beasley and Ting: Revealing Fundamental Properties of Fiber-Growth with Cotton Ovule Cultures
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT Since the initial description of culture conditions for growing fiber in vitro by Beasley and Ting in 1973 many laboratories, including the Cotton Fiber Bioscience Research Unit, have used cotton ovule cultures to answer questions about fiber development. Fiber growth on developmental mutants cultured in vitro was similar to patterns seen...

ASSET as an In-Furrow Application to Enhance Early-Season Growth and Lint Yield
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT The establishment of a uniform and vigorous stand is essential for producing a high yielding cotton (Gossypium hirsutum L.) crop. Germination, emergence and seedling establishment are adversely affected by unfavourable environmental conditions often experienced in the Mississippi Delta Region of the USA. Preplant in-furrow applications of...

Sucrosyl Oligosaccharide Metabolism and Cotton Fiber Development
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT The object of this study was to determine which oligosaccharides correlate with cell wall synthesis in developing cotton fibers. This study employed bolls taken from sequential fruiting branches on the same plant to rule out environmental and plant to plant differences. Cold aqueous extracts of developing cotton fibers have been analyzed...

Cell Wall Subunits, “Glue” Matrix and Cotton Fiber Development
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT The object of this study was to isolate and characterize the cell wall subunits and “glue” matrix involved in cell wall synthesis in developing cotton fibers. This study employed fibers taken from 25DPA bolls collected at 7am, noon and 7pm. Cold aqueous extracts of developing cotton were analyzed by HPAEC-PAD (Murray, 1998). Subsequent se...

Genetic Variability for Root Development in Cotton
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT Cotton root system development is under genetic control and continuously influenced by the environment. Root architectural diversity can influence the overall productivity of the plant since both uptake and distribution of water and nutrients are impacted by the size and distribution of the root system. The impact of various environmental...

Factors Affecting Yield of Okra-Leaf Cotton Types in the Mississippi Delta
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT Research throughout the 20th century has shown that okra-leaf cotton (Gossypium hirsutum L.) exhibits less boll rot, earlier maturity, reduced leaf area index and a higher CO2-uptake per unit leaf area than normal-leaf cotton. Despite these traits, okra-leaf types remain scarce in the U.S.A. However, okra-leaf cotton represents 30 to 50%...

Assessing Effects of Canopy Nitrogen and Light Distribution on Radiation Use Efficiency of Cotton
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT As a surrogate for photosynthesis, biomass accumulation at the crop level can be estimated from the product of the amount of radiation intercepted and the amount of dry matter produced per unit of radiation intercepted (radiation use efficiency, RUE). The cotton crop simulation model CERCOT uses this approach and modulates RUE in response...

Plant Proteins Responsible for Fiber Strength in Cotton
By Muhammad Naveed Arshad on Apr 19, 2019

WCRC WCRC2

ABSTRACT Enzymes and proteins of two lines of cotton differing in fiber strength were studied. The study revealed that activity of glucan synthetase and peroxidase in these lines increased with maturity, while the activity of B-(1-3)-glucanase and cellulase decreased. Specific enzymatic activity of peroxidase and glucan synthetase in line L-175 wa...

Physiological and Yield Responses of Field-grown Cotton to Shade
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Field studies were conducted to determine the effects of an 8-day period of shade (63% light reduction) at pinhead square (PHS), first flower (FF), peak flower (PF) or boll development (BD) stage on cotton (Gossypium hirsutum L.) carbohydrate composition, mineral nutrient status, lint yield and fiber quality. Shading for 8 days at the ear...

Nitrogen Fertility Management during Water Stress in Cotton
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Cotton is grown in a variety of climates where moisture stress is common. Stress may be chronic, occurring throughout the growing season, or acute, occurring at anytime during the season. Nitrogen management can have a significant impact on the effects of water stress. This paper presents the results of a three year study conducted in the...

Estimating Cotton Water Stress for Production Management
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Crop water stress evaluation is essential for accurate irrigation scheduling. Cotton was grown in 1997 using four irrigation levels where canopy temperatures (TC) were continuously measured with infrared thermometers. Water level treatments were rainfall (WL1)-, 1/3 ET (WL2), 2/3 ET (WL3), and 1.0 ET (WL4). This report compares the accura...

Organic Cotton Experiments in Northern Benin
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT The environmental effects of cotton production in West Africa put the long-term sustainability of entire cotton-based agricultural systems at risk. Policies aimed at cost reduction and improved efficiency of the cotton sector to stabilize export income should encompass the cryptic environmental costs of production. Solutions to problems o...

Sustainable Land Management Systems for Cotton
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Two projects in central Queensland, Australia, aim to minimize the impacts of irrigated and dryland cotton production on the environment. The projects are developing sustainable land management systems that will reduce soil structural degradation, runoff and soil erosion, and pesticide movement from cotton farms. The irrigated project foc...

Physiological and Molecular Response of Cotton to Water Deficit
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT The Differential Display technique (DD) was used to identify and isolate genes that may differ among four cotton genotypes (Gossypium hirsutum L.) with diverse response to water deprivation. The genotypes were first physiologically characterized in controlled environments where water and osmotic potential of roots and leaves, photosynthet...

Leaf Carbon Isotope Discrimination in Gossypium hirsutum under Drought Conditions
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT The breeding programme at CIFA Las Torres-Tomejil (Andalucia, Spain) has aimed at developing cotton cultivars with economic yield for conditions of restricted water supply since 1989. Increasing water-use efficiency may be one way for obtaining greater crop yield with limited water. The determination of carbon isotope discrimination (Δ) i...

Variability in K and Na Uptake in Wild and Commercial Gossypium hirsutum Seedlings under Saline Conditions
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Differences in K+ and Na+ uptake and compartmentation are related to salinity tolerance but the value of ion uptake as a trait for discriminating salt-tolerant genotypes is controversial. This report presents a survey of 15 wild and feral genotypes collected from salt-affected areas and 27 commercial cultivars in which K+ and Na+ concentr...

Use of Model Assisted Yield Frameworks for the Analysis of Cotton Cultivar Response to Drought
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Three experiments were conducted under field conditions in Senegal to study the effects of a post-floral drought on seed-cotton yield and yield components of five cotton cultivars. The fraction of transpirable soil water (FTSW) was used to characterize the soil water deficit as experienced by the plants in each elementary plot. Two model-...

Natural Resource Management in Hybrid Cotton in Rainfed Vertisols
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Twenty five percent of the world’s total area is under vertisols and vertic inceptisols exist in India (Rao et al 1997). Over 60% of the cotton produced in India comes from these soils. Hybrid cotton is cultivated in about 3.8 m ha, the majority on vertisols, where cotton is primarily a rainfed monsoon crop (ICAC.1997). Vertisols are clas...

Laboratory Screening Test for Cotton Seed Germination and Emergence Under Low Temperatures
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Cotton is a tropical perennial plant that is grown in the U.S. as a temperate annual. Approximately 20% of the U.S. crop is produced in the Texas High Plains, an area characterized by a short growing season in terms of accumulated heat units. Cool spring nights can reduce the germination of seeds and establishment of seedlings. The object...