Posts
Optimization of Microprojectile Bombardment Parameters for Pollen-Mediated Transformation in Gossypium hirsutum L.
By
Muhammad Naveed Arshad
on
Oct 8, 2018
ABSTRACT Mature pollen-mediated transformation in cotton (Gossypium hirsutum L.) by microprojectile bombardment was established under gaseous medium in our laboratories. Bombardment parameters influencing the vitality, in vitro germinability and GUS transient expression of bombarded pollen were studied and optimized by the Gray System Analysis met...
Efficient Protoplast Isolation Towards an Adapted Culture Protocol for Cotton (Gossypium sp.)
By
Muhammad Naveed Arshad
on
Oct 8, 2018
ABSTRACT The media composition for successful cotton (Gossypium sp.) protoplast isolation and cultivation was determined through systematic investigation of all the components of each culture medium. A set of orthogonal design experiments was used to verify the effect of each compound of the initial medium alone and in combination with other compo...
Cotton Biotechnology in Uzbekistan
By
Muhammad Naveed Arshad
on
Oct 8, 2018
ABSTRACT The Republic of Uzbekistan is a large producer and exporter of cotton but must overcome a number of limitations. Soil salinity has rendered about 20 % of the cotton producing area unsuitable for continued production. Increasing susceptibility to pathogens and pests reduces the yield by 10 – 12 %. Defoliants and harvest aid chemicals incre...
Effects of Foliar Applied Potassium on Cotton in the San Joaquin Valley of California
By
Muhammad Naveed Arshad
on
Sep 20, 2018
ABSTRACT Foliar fertilization of cotton, Gossypium hirsutum and G. barbadense, has been a subject of researchers since 1992 in California. The practice has expanded from its limited beginnings to widespread use for supplying supplemental nitrogen and potassium. Yield and economic advantages have been realized by researchers, and growers alike. Rep...
Nitrogen Fertilization of Cotton Based on Inorganic Nitrogen Analysis of the Soil
By
Muhammad Naveed Arshad
on
Sep 20, 2018
ABSTRACT Cotton is produced on widely differing soils under irrigated or rainfed conditions in South Africa. Under these circumstances seed cotton yields can vary greatly and so do their nitrogen demands. This model was the culmination of nitrogen field trials carried out over three seasons at four locations scattered over South Africa. In these t...
Influence of Nitrogen Nutrition on the Yield and Quality of Cotton
By
Muhammad Naveed Arshad
on
Sep 20, 2018
ABSTRACT Nitrogen plays an important role in the growth and yield of cotton. In rigid genetical conditions, growth and development of different cotton cultivars react differently to nitrogen fertilizers. The changes in parameters of cotton fibers of different cotton cultivars that react to the application of increasing doses of nitrogen fertilizer...
The Effects of the Nitrogen Fertilizer Rates on the Uptake and Yield of Cotton on Calcareous Soil
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT Excessive nitrogen fertilizer rates in Upland cotton (Gossypium hirsutum L.) produces high levels of nitrates in calcareous soils. The experiments were conducted in the Experimental Station of Vardates in central Greece, during the seasons 1992 and 1993. The objectives were to examine the effects of variable nitrogen rates on the nitrogen...
The Effect of Potassium Fertilizer Plus Higher Nitrogen Rates on Growth and Yield of Cotton
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT Two field experiments were carried out in two locations of Beni-Suef Governorate in middle Egypt, on Giza 75 cotton cultivar (Gossypium barbadense L.) to increase cotton yield by increasing nitrogen rates, while enhanced by potassium. The treatments were 112.5, 150, 187.5 kg N/ha and 187.5, 225.5 kg N plus 60kg K/ha. Results revealed that...
Effects of Organic and Inorganic Nitrogen Fertilizer Applications on Cotton Yield, Quality and Soil Properties in Gezira, Sudan
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT A factorial field trial investigating the effects of farm yard-manure (FYM) and urea application on cotton yield, quality and soil properties was conducted on a Vertisolic soil, low in organic matter, using cultivar Acala 93-H, for 3 consecutive seasons (1995-98) at the Gezira Research Station in Sudan. The FYM was given at 3 levels (0, 1...
Yield and Quality Properties of Cotton as Affected by Potassium Fertilization
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT A four year field test was initiated in 1997 to evaluate potassium as a soil treatment on yield and fiber quality of cotton in Adana. Four rates of potassium as K2SO4 (0, 80, 160 and 240 kg/ha) were applied to C.1518 cotton in two splits with half the K applied at planting and half when the crop reached the first bloom stage. Yield, plant...
Foliar Fertilization in Cotton
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT The supply of nutrients through the soil can be restricted by different factors such as soil compactness, extreme conditions of soil/water regime, pH of the soil solution, etc. Excessive N application to the soil might lead to environmental hazards. Foliar fertilization, when correctly applied provides solutions to many of these cases and...
KTS-Potassium Thiosulphate – A Liquid Potassium and Sulphur Fertilizer for Cotton Production
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT KTS is a clear liquid fertilizer product containing 25% K20 and 17% sulphur. This product was developed in the early 1990’s and currently is being manufactured in the US and distributed throughout the cotton growing regions of North and South America, Australia and the Middle East. KTS can be used as a source of potassium and sulphur for...
Tillage, Cover Crop and N Effects on Cotton Grown in 19 cm Row Widths
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT In areas of the USA where cotton (Gossypium hirsutum L.) is traditionally harvested with a spindle picker, there is widespread interest in producing cotton in narrow rows and harvesting with a stripper harvester. Optimum management practices with this system are not well-defined. This study was conducted to determine the effects of residu...
Influence of Nitrogen and Boron Interaction on Cotton Production
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT Studies across the cotton (Gossypium hirsutum L.) growing regions of the United States have shown boron and nitrogen to be essential nutrients for profitable cotton production. Four levels of nitrogen (N) (0, 34, 67, and 101 kg/ha for 1996 and 0, 67, 101, and 135 kg/ha for 1997) and four levels of boron (B) (0, 0.56, 1.12, and 2.24 kg/ha)...
Assessing the Salinity Threat to Sustainable Irrigated Cotton Production in the Lower Gwydir and Macintyre Valleys
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT Worldwide, the incidence of soil and water salinisation is increasing. This is particularly the case in irrigated agricultural regions and potentially in Australia’s intensively irrigated cotton-growing areas. This paper describes a broad scale approach to estimate this threat in the cotton growing areas of the lower Gwydir and Macintyre...
Optimization of Cotton Irrigation using Evolutionary Algorithm and Simulation Model
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT The optimal management of irrigation is a principal constraint facing agriculture worldwide. The potential number of combinations of irrigation schedules over a growing season is enormous when the variables involved are considered. Theoretically, on any given day during a cropping season, a decision can be made to irrigate or not. This as...
Influence of Irrigation and Plant Density on Cotton Yield in Southern Italy
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT The effects of irrigation timing and plant density on the main morphological and agronomic characters of cotton were investigated over five years from 1987 to 1991 in Southern Italy. Five irrigation levels were combined with four plant densities (6, 9, 12 and 15 plants per m2). Times and volumes of irrigation were determined by thermopluv...
Economization of Nitrogen Requirement of Summer Irrigated Cotton through Use of Biofertilizers
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT An experiment was conducted on G. hirsutum variety LRA 5166 under summer irrigated conditions in Western Maharashtra to assess the possibility of reducing rates of N fertilizer through the use of bio-fertilizers. The experiment was on a medium deep, black soil, low in N, medium in P2O5 and high in K2O. Experiments were repeated over three...
Effects of Meteorological Parameters and Irrigation on Cotton Phenology in Greece
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT The influence of temperature, relative humidity, rainfall and irrigation on the duration of cotton phenological stages was studied in the cotton producing zone of Greece during a 10 year period (1986-1994). Influence was found to be parameter and stage dependent. Temperature was the most time affecting parameter. More specifically, the mi...
Irrigation Withdrawal Time, Nitrogen Fertilization, and Cultivar Maturity Interactions in Upland Cotton
By
Muhammad Naveed Arshad
on
Sep 12, 2018
ABSTRACT Normal cotton management practices in South Texas terminate irrigation as early as first open boll (about 6 weeks after first bloom) and use N fertilization rates ranging from 135 to 200 kg/ha. Experiments were conducted at the Texas A&M University Agricultural Research and Extension Centre in Uvalde, TX during the 1995, 1996, and 199...