Cotton Hybrids and their Role in Indian Economy
By Muhammad Naveed Arshad on Feb 11, 2019

WCRC WCRC2 Breeding

ABSTRACT India is the pioneer country in the world for cultivating hybrid cotton on a commercial scale. The world’s first intra-hirsutum hybrid i.e. H4 was released in 1970 from Surat (Gujarat) and the world’s first interspecific tetraploid hybrid i.e. “Varalaxmi” was released from Dharwad (Karnataka). Later on, several high yielding hybrids in te...

Host Suitability and Yield Response of Three Cotton Varieties to Meloidogyne incognita
By Muhammad Naveed Arshad on Feb 11, 2019

WCRC WCRC2 Breeding

ABSTRACT One susceptible (Deltapine 90) and two resistant (LA 887 and NemX) cultivars were evaluated in field microplots for host suitability and yield loss to an isolate of Meloidogyne incognita. Five replications of seven initial population densities (Pi) of M. incognita (0, 0.5, 1, 10, 50, 100, 500 eggs/500 cm3soil) were established for each cu...

Comparative Evaluation of Intraspecific Isohybrids in Gossypium hirsutum L.
By Muhammad Naveed Arshad on Feb 11, 2019

WCRC WCRC2 Breeding

ABSTRACT Isohybrids of Cotton Ankur 651 were tested at the research farm of the company under rainfed conditions during 1997-98 to study the effect of different plant characters on the economic parameters. New lines of the male parent Ca/H-128 that were isogenic for the character okra leaf shape, pigmented plant body and pigmented anther filament...

Research and Development Efforts on Hybrids of Diploid Cotton in Mahyco, India
By Muhammad Naveed Arshad on Feb 11, 2019

WCRC WCRC2 Breeding

ABSTRACT India is an important cotton growing country with the largest area under cotton in the world. India is also considered the birth place of the two diploid cotton species G. arboreum and G. herbaceum, known as Desi cottons. Since these species are highly resistant to pests and diseases, tolerant to drought, fit for rainfed cultivation in lo...

Brown Cotton – Home Coming
By Muhammad Naveed Arshad on Feb 8, 2019

WCRC WCRC2 Breeding

ABSTRACT Pakistan had a well-developed cottage industry that perished under modernisation. Recently Fox Fibers revived the use of natural coloured organic cotton. Brown cotton seed samples were collected from a local ginnery. It had short staple (14-15 mm), and low yield. This material also had poor resistance against cotton leaf curl virus and in...

Diversity of Primitive Upland Cotton Germplasm
By Muhammad Naveed Arshad on Feb 8, 2019

WCRC WCRC2 Breeding

ABSTRACT Improvement of crop species requires genetic resources that may extend from primitive or exotic species to commonly grown cultivars. The introduction of desirable traits from germplasm sources to adapted cultivars is an ongoing process. The cotton, Gossypium hirsutum L., collection of primitive accessions contains a wealth of genetic vari...

Heritability of Fiber Strength in Genetically Engineered Cotton
By Muhammad Naveed Arshad on Feb 8, 2019

WCRC WCRC2 Breeding

ABSTRACT Fiber strength must be increased for cotton to remain competitive as a textile fiber. The findings of a 2-yr study of cotton genetically engineered to express increased fiber strength are reported. Particle bombardment transformation of 'Deltapine 50' was accomplished by Monsanto. In field trials, fiber strength was increased by 25-75% ov...

Genetics and Improvement of Lint Characters in Naturally Coloured Cotton
By Muhammad Naveed Arshad on Feb 8, 2019

Breeding & Genetic improvement WCRC WCRC2

ABSTRACT A genetic improvement programme for coloured lint in G. hirsutum L. has been initiated Cyclic crosses were made in two sets: Set 1 included LRA 5166 (white), Khaki American (brown) and Arkansas Green (green) parents. Six generations viz. P1, P2, F1, F2, BC1 and BC2 were studied. There exists multiple allelic series of Lcb (brown), Lcg (gr...

Inheritance of important Properties in Half Diallel Hybrids of some Glandless Cotton
By Muhammad Naveed Arshad on Feb 8, 2019

WCRC WCRC2 Breeding

ABSTRACT This study was carried out in 1992-93 under South Eastern Anatolian Project (GAP) region conditions to investigate inheritance of yield, yield components and fiber properties in a population containing parents and half diallel hybrids of ten glandless cotton cultivars. Data were analyzed according to 1) Jones (1965), 2) Griffing (1956) me...

Path Coefficient Analysis in Half Diallal Hybrids of some Glandless Cotton Cultivars (Gossypium hirsutum L.)
By Muhammad Naveed Arshad on Feb 8, 2019

Breeding & Genetic improvement WCRC WCRC2

ABSTRACT This study was carried out in 1992-93 in the Cukurova and South Eastern Anatolian Project (GAP) region to determine relationships between important agronomic and fiber characteristics in a population that contained parents and half diallel hybrids of ten glandless cotton cultivars. For characters that gave significant correlations with se...

Host Plant Resistance to Pathogens in MAR Cotton Germplasm
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT Cotton growers face intense economic pressures as cotton prices hold steady while cost of production increases. Pathogens that cause: seed-seedling diseases, bacterial blight, Fusarium and Verticillium wilts, Phymatotrichum root rot, nematodes and leaf spots reduce yield and fiber quality. Host-plant resistance offers durable, economic co...

Identification of Characters for Selecting Increased Water Use Efficiency in Cotton
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT Water supply is a major determinant of cotton yield. In Australia, unreliable rainfall means that irrigation supplies can not be guaranteed. In addition, 20 % of the industry is raingrown and depends on the same unreliable rainfall. The aim to determine if it is possible to identify and select characters that enhance the leaf and crop wat...

Breeding for Insect Resistance in Cotton Utilizing Morphological Traits at the Cotton Research Institute, Sakrand, Sindh, Pakistan
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT Resistance to insect pests is of importance in cotton production. Losses due to insect pests increase production costs by reducing yield, lint and seed quality. Early maturing, insect resistant cultivars provide an economic and effective control measure. At Central Cotton Research Institute, Sakrand, earliness and some morphological trait...

The Effect of Mutagenesis on Egyptian Cotton
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT The present study was initiated to evaluate the effectiveness of Gamma irradiation (10 k.r.) and Dimethylsulphate (0.02%) on some characters of Egyptian cotton. Gamma ray treatment showed decreased numbers of fruiting branches except in the M2 of Giza 81 while Dimethylsulphate treatment showed decreases the M1. The days to the first flowe...

Effect of Chemical Mutagens on Fiber Fineness of Egyptian Cotton
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT This research aimed at studying the effect of triethanolamine (TEA) (0.02%) and dimethylsulphate (DMS) (0.025%) on fiber fineness, in the two Egyptian cotton varieties: Menoufi and Giza 74, and in the F1, F2, Bc1, and Bc2 of their hybrid. The study was carried out on the M1 and M2 of the two chemical mutagens. The fieldwork continued for...

Continued Progress in Breeding for Yield in the USA?
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT The objective of this study was to determine if lack of genetic progress was partially responsible for stagnating yields in USA cotton. A review of obsolete vs. modern cultivars indicated breeding progress for yield peaked in 1987. National cultivar test regression of yield on test year was negative (b=-05.1 kg ha-1 yr-1) for the years 19...

Evaluating F3 Lines of Single Crosses for Yield Improvement in Cotton
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT In Benin, average cotton yields have stagnated for several years. Although the main factors are known to be decreasing levels of inputs by the farmers, yield improvement has become a research priority for cotton research as a whole, including plant breeding. Selecting variables with low heritability like yield requires specific experiment...

Breeding Short Duration, Compact, Leaf Curl Resistant Variety of Cotton in Double Cropping System of North India
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT Genotypes with dwarf, compact stature and short duration, are suitable for agronomic manipulation. These genotypes could be planted in thick stands to harvest high seed cotton yield per unit area and per unit time, an important breeding objective. Varieties with a short sympodial habit and duration are most suitable for cotton-wheat rotat...

Drought Susceptibility Index as an Indicator of Genotypic Drought Tolerance in Upland Cotton
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT The drought susceptibility index developed by Fisher and Maurer was used to calculate the drought tolerance of 25 upland cotton genotypes and one interspecific hybrid (G. hirsutum x G. barbadense) in three field experiments under dryland conditions. One was conducted in 1995 on a sandy loam soil and the other two in 1996 on a clay soil wi...

Crop Water Stress Index (CWSI) as an Indicator of Water Stress and Yield Performance among Cotton Cultivars
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT Field experiments were conducted in Seville (SW Spain) on a sandy loam soil (Typic Xerofluvent) to investigate the usefulness of CWSI in screening cotton genotypes for drought resistance and yield characteristics. Non-water-stressed baseline equations were determined in 1993 and 1994 by conducting a diurnal study of a well watered crop. S...