20 research outputs found
Development of Sorghum Genotypes for Improved Yield and Resistance to Grain Mold Using Population Breeding Approach
The infection caused by grain mold in rainy season grown sorghum deteriorates the
physical and chemical quality of the grain, which causes a reduction in grain size,
blackening, and making them unfit for human consumption. Therefore, the breeding for
grain mold resistance has become a necessity. Pedigree breeding has been widely used
across the globe to tackle the problem of grain mold. In the present study, a population
breeding approach was employed to develop genotypes resistant to grain mold. The
complex genotype × environment interactions (GEIs) make the task of identifying stable
grain mold-resistant lines with good grain yield (GY) challenging. In this study, the
performance of the 33 population breeding derivatives selected from the four-location
evaluation of 150 genotypes in 2017 was in turn evaluated over four locations during
the rainy season of 2018. The Genotype plus genotype-by-environment interaction
(GGE) biplot analysis was used to analyze a significant GEI observed for GY, grain
mold resistance, and all other associated traits. For GY, the location explained a higher
proportion of variation (51.7%) while genotype (G) × location (L) contributed to 21.9%
and the genotype contributed to 11.2% of the total variation. For grain mold resistance,
G × L contributed to a higher proportion of variation (30.7%). A graphical biplot approach
helped in identifying promising genotypes for GY and grain mold resistance. Among the
test locations, Dharwad was an ideal location for both GY and grain mold resistance.
The test locations were partitioned into three clusters for GY and two clusters for grain
mold resistance through a “which-won-where” study. Best genotypes in each of these
clusters were selected. The breeding for a specific cluster is suggested. Genotype-bytrait
biplots indicated that GY is influenced by flowering time, 100-grain weight (HGW),
and plant height (PH), whereas grain mold resistance is influenced by glume coverage
and PH. Because GY and grain mold score were independent of each other, there is a
scope to improve both yield and resistance together
Fibrolipoma of buccal mucosa
The lipoma is a very common benign tumor of adipose tissue, but its presence in the oral and oropharyngeal region is relatively uncommon. Fibrolipoma, a histological variant of lipoma, mostly affect the buccal mucosa and causes functional and cosmetic disabilities. Hence, accurate histopathological examination of lipomas is important for a correct treatment plan. This article describes a case of 10 year old girl with fibrolipoma of the buccal mucosa with a relevant review of tumors
Heterogeneity of human brain tumor with lesion identification, localization, and analysis from MRI
Brain tumor detection and classification: A framework of marker‐based watershed algorithm and multilevel priority features selection
Brain tumor segmentation with radius contraction and expansion based initial contour detection for active contour model
Brain tumour classification using saliency driven nonlinear diffusion and deep learning with convolutional neural networks (CNN)
General and specific combining ability in sweet sorghum.
In breeding of sweet sorghum hybrids, non-additive genetic effects are important in phenotypic expression of the traits of interest. The aim of this study was to evaluate the general combining ability (GCA) of sweet sorghum lines and the specific combining ability (SCA) of the hybrids for agronomic and technological traits. Five fertility restorer lines, four male-sterile lines, and their hybrids from partial diallel crosses were evaluated in experiments laid out in a 5 x 6 triple rectangular lattice design in the municipalities of Lavras, MG and Sete Lagoas, MG, Brazil. Diallel analysis was performed using the Griffing model adapted to partial diallel crosses. There was a significant effect of GCA and SCA for most of the traits evaluated, indicating the participation of additive or dominant genes in inheritance. The restorer lines CMSX508, BRS 511, CMSXS643, and CMSXS646 show potential for use as parents in sorghum breeding programs