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...

Building Up Resistance to Verticillium Wilt in Cotton Through Honeycomb Breeding
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT Honeycomb breeding as evolved and refined over 25 years, is based on three principles: First: insuring conditions that optimize single plant heritability; Second: genetic analysis of crop yield potential into three components, potential yield per plant estimated by the progeny mean (X), tolerance to stress estimated by progeny standardize...

Suggestions to Improve the AMMI Method for Measuring Stability of Genotypes
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT The author suggests some modifications to the additive main effect and multiplicative interaction (AMMI) method to increase its accuracy for measuring stability of genotypes. Using the suggested modifications, four stability levels could be defined, high, above average, average and below average. The genotype with a high level of stabilit...

Concept of Graphical Genotypes for Analysing Introgressed Cotton Populations
By Muhammad Naveed Arshad on Feb 6, 2019

WCRC WCRC2 Breeding

ABSTRACT Cotton breeders have utilized genes from Gossypium barbadense to enhance fiber properties of Acala cotton G. hirsutum. This has been achieved only after many decades of careful selection and breeding. Extensive problems with interspecific hybrid population have frustrated breeders and prevented targeted introgression of genes for importan...

JCR-Cotton High Speed Phenotyping Thematic Series Call For Paper
By Fan Qin on Jan 17, 2019

Uncategorized

Journal of Cotton Research Cotton High Speed Phenotyping Thematic Series Call For Paper Coordinator: Professor Eric F. Hequet, Texas Tech University, USA; Dr. Glen Ritchie, Texas Tech University, USA High speed phenotyping is critical to improve cotton research and production. It can be applied to large scale commercial fields, research...

Evaluation of genetic diversity in short duration cotton (Gossypium hirsutum L.)
By Quanyi LIU on Jan 12, 2019

Agro-physio-Asia Breeding-Asia Breeding JCR

[Background] Cotton (Gossypium hirsutum L.) is an important fiber crop in Bangladesh. Genetic diversity among the genotypes of a germplasm has a great importance for cotton breeding. An experiment was carried out at the experimental field of Cotton Research, Training and Seed Multiplication Farm, Sreepur, Gazipur during the cropping season of 2015–...

Irrigation’s effect and applied selection on the fiber quality of Ethyl MethaneSulfonate (EMS) treated upland cotton (Gossypium hirsutum L.)
By Quanyi LIU on Dec 26, 2018

Breeding & Genetic improvement Agro-Physio-north-america JCR

[Background] Producing rainfed cotton (Gossypium hirsutum L.) with high fiber quality has been challenging in the Texas High Plains because of extended periods of insufficient rainfall during sensitive boll developmental stages. Genetic variation created by Ethyl MethaneSulfonate (EMS) mutagen has successfully improved fiber quality of cotton. Howe...

Selection Efficiency for Cotton Fiber Quality in Segregating Material by Different Instruments
By Muhammad Naveed Arshad on Dec 24, 2018

WCRC WCRC2 Breeding

ABSTRACT A breeding programme to develop varieties with a wide range of quality parameters to meet various end uses, requires rapid and accurate fiber quality assessment. This paper examines the potential of instruments to provide data for the selection of fiber quality parameters. Segregating genetic material (F2) from five intra-specific crosses...

Changes in Breeding Strategy for Needs in a Liberalized Cotton Industry
By Muhammad Naveed Arshad on Dec 24, 2018

WCRC WCRC2 Breeding

ABSTRACT Commercial cotton (G. hirsutum L.) production has been based on BPA and SATU varieties, grown in two ecological zones. Both have had a strong world market, the stronger, longer and finer fiber BPA finding a different market niche. The collapse of the seed replacement system developed by the Department of Agriculture and liberalization of...

Chromosomal Location of RFLP Markers Linked to QTL in Cotton
By Muhammad Naveed Arshad on Dec 24, 2018

WCRC WCRC2 Breeding

ABSTRACT Plant breeders are primarily involved in improving complex quantitative traits (QTL) that are controlled by many genes. Molecular markers linked to QTL will help breeders to monitor the hereditary materials associated with the QTL. Recently, our research unit reported a linkage map of a class of molecular markers called Restriction Fragme...

Combining Ability for Fiber Properties in Influential Upland Cotton Varieties
By Muhammad Naveed Arshad on Dec 24, 2018

WCRC WCRC2 Breeding

ABSTRACT A great number of germplasm lines have been used as parents in cotton improvement. Those contributing a larger proportion of genes to modern cotton cultivars than other germplasm are called influential lines. Based on the pedigree analysis of 260 cotton cultivars released in the United States between 1970-1990, the most influential cotton...

Reaction of some Segregating Populations and Newly Introduced Cotton
By Muhammad Naveed Arshad on Dec 24, 2018

WCRC WCRC2 Breeding

ABSTRACT Resistance of cotton cultivars in the Sudan to Xanthomonas campestris pv. malvacearum conferred by B2 B6 gene combination is no longer effective after the appearance of new races of the pathogen. Thus, new sources of resistance or new gene combinations are needed to protect the crop. This study was carried out to identify such a new sourc...

Participatory Cotton Breeding in Benin
By Muhammad Naveed Arshad on Dec 24, 2018

WCRC WCRC2 Breeding

ABSTRACT A cotton improvement programme based on participatory plant breeding methods employed for food crops has been implemented in Benin for ht e last two years. It aims at reinforcing the relationship between farmers and research, regionalising cotton breeding thanks to active collaboration with grower associations. Hopefully, farmers will als...