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HOST PLANT RESISTANCE TO INSECTS IN COTTON
on
Mar 13, 2017
Introduction Back to Table of contents Successful crop management components are built on the cultivar foundation. Insects are one of the major problems in cotton production and their abundance and species mix influence crop and pest management practices. Heliothines, mirids, aphids...
LOSS IN SEED COTTON YIELD DUE TO FUSARIUM WILT IN SUDAN GEZIRA
on
Mar 10, 2017
Abstract Back to Table of contents Loss in seed cotton (Gossypium barbadense L.) yield, resulting from Fusarium vascular wilt disease (Fusarium oxysporum Schlecht f. sp. vasinfectum (Atk.) Snyd. and Hans), was assessed for three consecutive seasons, on nine cultivars of diff...
PROGRESS WITH VARIETAL IMPROVEMENT IN CIRAD
on
Mar 10, 2017
Abstract Back to Table of contents CIRAD-CA (formerly IRCT), has participated in cotton research (mainly G. hirsutum) in a number of tropical countries in Africa, Latin America and Asia, for 45 years. Especially in cotton breeding, the work carried out has led to the creatio...
THE HERITABILITY OF YIELD, YIELD COMPONENTS AND FIBRE TECHNOLOGICAL PROPERTIES IN PARTIAL DIALLEL HYBRIDS OF UPLAND COTTON (GOSSYPIUM HIRSUTUM L.) VARIETIES IN SOUTHEASTERN ANATOLIA REGION OF TURKEY
on
Mar 10, 2017
Abstract Back to Table of contents This study was conducted on the Fl and the parental genotypes obtained from the partial diallel cross of 12 promising varieties (Gossypium hirsutum L.) with the objectives of creating genetic resources and detecting early varieties with hig...
BREEDING FOR RESISTANCE TO BACTERIAL BLIGHT OF COTTON IN RELATION TO RACES OF THE PATHOGEN
on
Mar 10, 2017
Abstract Back to Table of contents Bacterial blight of cotton incited by Xanthomonas campestris pv malvacearum (Xcm) occurs in most cotton producing regions of the world. Bacterial blight causes a 1% yield loss annually in the USA, and more than 50% loss during epidemics in...
AGRONOMIC MANAGEMENT OF EXTRA FINE COTTON FOR HIGHER GRADES IN EGYPT
on
Mar 10, 2017
Introduction Back to Table of contents Egyptian cotton is the major cash crop of Egypt. It is the main item affecting the Egyptian economy. Over two million people are dependent on it for their livelihood. Cotton is mainly used for clothing. Its oil and oil seed cake are two by-pr...
INDUCTION OF SOMATIC EMBRYOGENESIS IN A RANGE OF COTTON CULTIVARS
on
Mar 10, 2017
Abstract Back to Table of contents Diverse genotypes of cotton Gossypium hirsutum L. were evaluated for their capacity to form callus formation and for induction of somatic embryogenesis. Callus cultures were evaluated from hypocotyl, mesocotyl and cotyledonary leaf explant...
THE AUSTRALIAN WILD SPECIES OF GOSSYPIUM
on
Mar 10, 2017
Abstract Back to Table of contents Of the 50 species of Gossypium, 17 are endemic to Australia. These plants are classified in three sections, Sturtia, Hibiscoidea and Grandicalyx, in the endemic subgenus Sturtia. The first two sections are relatively well‑known through th...
RISK OF ESCAPE OF TRANSGENES FROM COTTON INTO NATURAL POPULATIONS OF AUSTRALIAN GOSSYPIUM SPECIES
on
Mar 10, 2017
Abstract Back to Table of contents Two endemic species of wild cotton, Gossypium sturtianum and G. australe, occur near the eastern Australian cotton growing regions. These species can be crossed artificially with cotton (G. hirsutum) and experimental doubling the chromosome...
VOLATILE TERPENES AND TERPENOID ALDEHYDES IN AUSTRALIAN-GROWN GOSSYPIUM HIRSUTUM L. CULTIVARS AND LINES
on
Mar 10, 2017
Abstract Back to Table of contents Volatile terpenes were assayed in sixteen Gossypium hirsutum L. genotypes, seven of which were also analysed for terpenoid aldehydes. Consistent with previous studies, the major volatile terpenes detected were trans-b-caryophyllene, b-bisab...
MECHANISMS OF DISEASE RESISTANCE IN GOSSYPIUM SPECIES AND VARIATION IN VERTICILLIUM DAHLIAE
on
Mar 10, 2017
Introduction Back to Table of contents Studies on Verticillium wilt of cotton have concentrated on host resistance to the pathogen and on genetic variation and mechanisms of virulence in Verticillium dahliae. The resistance of cotton to V. dahliae depends on a number of anatomical a...
HYBRID COTTON RESULTS AND PROSPECTS
on
Mar 10, 2017
Abstract Back to Table of contents Hybrid 4 ushered in the era of hybrid cotton in India in the 1970s. Hybrids both intra and interspecific now occupy about 28% of the cotton area and contribute about 42% of production of the country. Inspired by the unique success of hybr...
QUALITY ASSESSMENT FOR BREEDING EGYPTIAN HIGH QUALITY COTTON VARIETIES
on
Mar 10, 2017
Abstract Back to Table of contents The cotton breeding program in Egypt has developed over a long time. Strong emphasis has always been put on quality and a good deal of improvement with yield potential and agronomic characters. Methods of quality measurement and eval...
IMPERIAL VALLEY COTTON FIELDS SURVEYED WITH PLANT MAPPING
on
Mar 10, 2017
Abstract Back to Table of contents We introduced the University of California Plant Mapping Program to growers in the Imperial Valley for the first time for the 1993 cotton season. Because the equations used in the program were derived from data collected in the San Joaquin...
METHAM IN COTTON
on
Mar 10, 2017
Abstract Back to Table of contents Metham is a soil fumigant which is used to kill germinating weed seeds and organisms in the soil such as nematodes and fungi. In cotton, nightshade and nutsedge are among the most difficult weeds to control. Several trials were conducted...
EFFECT OF FOLIAR APPLIED NITROGEN AND POTASSIUM ON COTTON IN THE SAN JOAQUIN VALLEY OF CALIFORNIA
on
Mar 10, 2017
Abstract Back to Table of contents Improved cotton varieties and improved cultural practices have caused lint cotton yields to improve at a rate of 36 kg ha-1 year-1 over the past ten years. Earlier maturing varieties, 76 cm rows, better irrigation regimes, improved pest man...
NIGHTSHADE CONTROL WITH PYRITHIOBAC SODIUM (STAPLE) IN CALIFORNIA COTTON
on
Mar 10, 2017
Abstract Back to Table of contents The control of nightshade species with pyrithiobac Sodium at rates up to 210 liters/ha with and without fluazifop, methanearsonate, and surfactants were examined from 1991-1993. Phytotoxicity to Acala cotton was also evaluated. Contro...
DETERMINING NON-EROSIVE VELOCITIES FOR DESIGN OF CONTOUR BANKS
on
Mar 10, 2017
Abstract Back to Table of contents One farming system found to give good control of erosion on sloping agricultural land is the use of agronomic measures in conjunction with contour banks. Contour banks constructed with a constant gradient result in layouts with interbank a...
RESPONSE OF COTTON TO NPK FERTILIZATION - THE GREEK EXPERIENCE
on
Mar 10, 2017
Abstract Back to Table of contents Cotton is an economically important crop in Greece and experiments to determine the response of cotton to rates of fertilizers have always been an important part of research. The first experiments started almost 40 years ago and low rates o...
VIRTUAL COTTON: A NEW TOOL FOR RESEARCH, MANAGEMENT AND TRAINING
on
Mar 10, 2017
Abstract Back to Table of contents "Virtual plants" are computer abstractions which contain sufficient spatial information for realistic images of successive growth stages to be generated. Virtual plants are assembled by software which interprets rules of growth worked out...