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Articles by Huseyin Basal
Total Records ( 4 ) for Huseyin Basal
  John K. Hemphill , Huseyin Basal and C. Wayne Smith
  Abiotic stress conditions such as drought, salt and high temperature reduce yields of crop plants by as much as 70%. Therefore, advancement of salt-tolerance in cotton requires the identification of plant genetic diversity that exists, theoretically, in cultivars, which are adapted to arid growing regions. The exotic race stock accessions should possess salt-tolerant genes since many of these Gossypium hirsutum germlines were collected in the arid regions of Mexico and Central America. The objective of this project was to develop a screening technique to identify the cultivars and exotic germlines that possessed salt-tolerant genes. Since the early stages of a plant`s life cycle are generally believed to be the most sensitive stages, we screened several conventional cultivars as controls and several exotic race stock accessions for their ability to tolerate increased salt levels during seed germination-radical elongation (growth chamber) and seedling maturation (hydroponic conditions in a greenhouse). It was concluded that this screening technique resulted in the identification of plants that survived these conditions and represent likely candidates for use in our plant-breeding program.
  Huseyin Basal , John K. Hemphill and C. Wayne Smith
  Cotton is considered a moderately salt-tolerant crop, however, cotton varieties differ in the level of salt- tolerance and high salinity reduces growth, yield and fiber quality in a different extent. The objectives of this study were to determine the response of selected CRS accessions to salt stress and to identify salt-tolerant CRS accession(s) or individual plants within these accessions that potentially could be used as parental material for further investigation of salt tolerance in cotton. Seedling of four putative salt-tolerant (M-9044-0031, M-9044-0061, M-9044-0140 and M-9044-0150) and three salt-sensitive CRS accessions (M-9044-0060, M-8744-0091 and M-8744-0175) plus Acala 1517-88, Deltapine 50 and TAM 94-L25 were grown under hydroponic culture with two different salt concentrations (150 and 200 mM NaCl) and control. The study was carried out under completely randomized experimental design. Significant differences were observed among cotton genotypes for Shoot (SL) and Root Length (RL) and Shoot Dry Weights (SDW) and Root Dry Weights (RDW) reduction with the increasing salt levels. It was concluded that CRS lines, M-9044-0060, M-9044-0061 and M-8744-0091, may provide additional insights and parental material for breeding for salt tolerance in upland cotton. In addition, selected single plants from salt-tolerant CRS lines were transferred to pots to obtain seeds for further investigation of salt tolerance in cotton.
  Huseyin Basal , M. Ali Demiral and Oner Canavar
  Increasing soil salinity is becoming a serious problem in the agriculture areas of all over the world. Although cotton is considered a moderately salt tolerant crop, it would be useful to use exotic cotton accessions as a new genetic resource for increasing salt tolerant level of cotton genotypes. The objective of this research was to identify salt-tolerant CRS accession(s) that would serve as parental material for further salt-tolerant research in cotton. Seedling of four putative salt-tolerant (M-9044-0031, M-9044-0061, M-9044-0140 and M-9044-0150) and three putative salt-sensitive CRS accessions (M-9044-0060, M-8744-0091 and M-8744-0175) plus Acala 1517-77, Deltapine 50, TAM94L-25, Stonville-453 and Nazilli-84 were exposed to two different salt concentrations (125 and 250 mM NaCl) and control in completely randomized design with ten replications. Significant differences were observed among cotton genotypes for reduction ratios in Shoot Dry Weight (SDW), Total Dry Weight (TDW) Leaf Area (LA) and Plant Water Content (PWC). SDW, TDW and PWC were correlated positively regardless of treatment, indicating that either trait could be used as a selection criterion. With TAM94L-25, M-9044-0060, M-8744-0091 and M-9044-0140 exhibited less reduction in SDW and TDW. It was concluded that CRS lines, M-9044-0060, M-8744-0091 and M-9044-0140 may provide parental material for salt tolerance in upland cotton breeding.
  Huseyin Basal , Penelope Bebeli and C. Wayne Smith
  The genetic diversity and genetic relationship among breeding material has an invaluable importance for crop breeders. A number of methods based on morphological data, agronomic performance data, biochemical data and molecular data have been used to analyze genetic diversity in germplasm accessions, breeding line and populations. In this study, 68 CRS accessions and 10 cotton genotypes were investigated to characterize the genotypes based on root morphological data and to identify a core set of Converted Race Stocks (CRS) accessions by using multivariate methods, including principal component and cluster analyses. Principal component and hierarchical cluster analysis grouped CRS accessions into 13 clusters and produced two different groups for cotton genotypes, representing different cotton production area in the USA. The first two principal components explained 75.10 and 90.45% of the total variation among 68 CRS accessions and cotton genotypes, respectively, with Total Root Dry Weight (TRDW) and Lateral Root Dry Weight (LRDW) being the most important characters in the first principal component. The results of this study would be of practical value to cotton breeders to select robust rooted CRS accessions and cotton genotypes from different group without duplicate parents for further investigation in cotton breeding for drought tolerance.
 
 
 
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