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

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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...

Physiology of Cotton under Irrigated and Dryland Conditions in Spain
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT The main cotton-producing area in Spain is Andalucia, where it is grown mainly under irrigation (about 100,000 ha). Efforts are being made to increase the efficiency of irrigation water use. This investigation compares responses of five cultivars of upland cotton to growth under irrigated (Las Torres field station at Alcalá del Rio) or ra...

Physiological Responses of Cotton to Water Deficit in Pakistan
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT In Pakistan most cotton is grown under irrigation. Between 1994 and 1997 a series of experiments were conducted at two sites, The Postgraduate Agriculture Research Station of the University of Agriculture, Faisalabad and the Central Cotton Research Institute in Multan, to examine the effects of reduced irrigation on the yield and physiolo...

Problems of Growing Cotton in Marginal Regions
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Bulgaria is among the most northerly cotton producing countries in the world. Hydrothermal conditions during the growing season put specific requirements on cultivars and production practices. Russia and the Ukraine intend to re-introduce cotton production based on Bulgarian experience and early maturing cultivars. The constraints will...

FINISH®, a Physiological Approach to Cotton Boll Opening and Defoliation
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT Dehiscence processes (boll opening, leaf shedding) in the cotton plant is mediated through a delicate balance of plant hormones. Ethylene promotes dehiscence primarily by stimulating the enzymes involved in the hydrolysis of insoluble pectates and cellulose that ensure the adherence of cells in the abscission zones. The growth promoting p...

Fiber Contamination and Impurities Tester - FCT: A Powerful Tool to Help the Ginner to Optimize Trash, Neps and Seed Coat Fragment Content during Ginning
By Muhammad Naveed Arshad on Apr 18, 2019

WCRC WCRC2

ABSTRACT For many years, solutions have been sought to the problem contaminants of stickiness, seed coat fragments (SCF), neps and trash. The FCT, currently being used I all sectors of the chain, provides a perfect, fast and accurate solution to the measurement of these parameters. The FCT is a new generation of fiber testing systems that is based...

Integrated Crop Management in the Age of Genetically Engineered Traits
By Muhammad Naveed Arshad on Apr 17, 2019

WCRC WCRC2

ABSTRACT With the recent introduction of genetically engineered input traits such as insect resistance and herbicide tolerance, a new dimension has been added to cotton production. Maximizing cotton yield and fibre quality will move beyond conventional crop protection, integrating the new technology with the use of insecticides, herbicides and har...

A New Device for Small Scale Cottonseed Acid Delinting
By Muhammad Naveed Arshad on Apr 17, 2019

WCRC WCRC2

ABSTRACT The inefficiency of large scale delinting units to delint small amounts of cottonseed for the experiments conducted by research institutes has lead to the construction of a small experimental cottonseed delinting unit. The experimental delinting device was constructed at the premises of the company Myron Nikolaidis. Stainless steel was u...

Influence of Seed Processing and Delinting on the Degree and Uniformity of Seed-to-Seed Loading After Treatment with Gaucho and Monceren T WS
By Muhammad Naveed Arshad on Apr 17, 2019

WCRC WCRC2

ABSTRACT Insecticide seed dressings like Gaucho and Monceren T WS on delinted cotton seed have to receive small doses in mg ai/seed to guarantee equal coverage for adequate protection of each young cotton plant. Bayer offers a “Quality Charter" and technical assistance to professional seed plants to reach the target of registered dose rate with Ga...