Posts
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
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
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
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
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
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
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
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
[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
[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
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
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
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
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
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
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...
Achieving Multiple Pest Tolerance Through Manipulation of Morphological Features in Cotton
By
Muhammad Naveed Arshad
on
Dec 24, 2018
ABSTRACT Breeding for tolerance to sucking pests and bollworm in cotton is treated as mutually exclusive events. Selection for resistance to sucking pests with more hairy leaves brought increased susceptibility to bollworms. An effort was made to select genotypes with high density hair on the lower leaf surface and low density hair on the upper su...
Inheritance Studies of Quantitative Characters in Upland Cotton
By
Muhammad Naveed Arshad
on
Dec 21, 2018
ABSTRACT Before any efficient breeding methodology can be developed it is necessary to analyze the genetic architecture of quantitatively inherited characters like yield and its components. Understanding the nature of gene action involved in the expression of a character is helpful in deciding the breeding procedure to be used for improvement of t...
Colour cotton research in Mahyco, India
By
Muhammad Naveed Arshad
on
Dec 21, 2018
ABSTRACT The work on develop naturally coloured cotton commenced at Maharashtra Hybrid Seeds Co. Ltd. (Mahyco, Jalna, India) in 1993. The objectives were the identification of coloured linted cotton hybrids with high yield and superior fiber traits. Colour cotton was grown and used by mankind as long ago as 2500 BC. Damaging effects of synthetic d...
An RFLP and QTL Linkage Map in Gossypium hirsutum L.
By
Muhammad Naveed Arshad
on
Dec 21, 2018
ABSTRACT Ninety-six F2.F3 bulk sampled families of Upland Cotton, Gossypium hirsutum L. from a cross of MARCABUCAG8US1-88 X HS 46 were analysed with 129 probe/enzyme combinations resulting in 138 RFLP loci. There were 84 co-dominant markers of which 76 fit a normal 1:2:1 ratio. There were 54 dominant markers of which 50 fit a normal 3:1 ratio. Usi...
Cotton Breeding Studies in Turkey: History and Future Trends
By
Muhammad Naveed Arshad
on
Dec 21, 2018
ABSTRACT Cotton breeding in Turkey started in the 1920’s by governmental organizations such as research institutes and state universities and to some extent by private organizations. Initially, breeding consisted of introduction, selection, seed multiplication and inter and intra-specific crossing studies. Later, it focused on the investigation of...