Sadaf Saleem - Academia.edu (original) (raw)
Uploads
Papers by Sadaf Saleem
To study the genetic variability in 20 different genotypes of cotton, a preliminary yield trial w... more To study the genetic variability in 20 different genotypes of cotton, a preliminary yield trial was designed at Cotton Research Station, Faisalabad, Pakistan. The results of cluster analysis revealed that cluster 3 comprised of genotypes that have average yield of 3,802 kg/ha and good fiber quality traits while cluster 2 genotypes showed good potential along with staple length of 30 mm. The study of principal components revealed that out of 9 PCs 3 components exhibited eigen value greater than 1. These three PCs contributed 69.2% of the total variability amongst the genotypes assessed for yield, agronomic and fiber traits. The remaining components contributed only 30.8% towards the total variability. The traits like yield, sympodia per plant and bolls per plant showed considerable positive factor loadings on PC I while on PC II, maximum positive loading was shown by plant height, Ginning Out Turn (GOT) and fiber strength and maximum negative loadings were exhibited by fiber length. ...
Journal of Integrative Agriculture, 2019
Cottonseed oil is the valuable byproduct extracted after seed cotton processing for lint. It conf... more Cottonseed oil is the valuable byproduct extracted after seed cotton processing for lint. It confers a huge contribution to total vegetable oil production and ranked the 2nd to meet global edible oil requirements. Over centuries, breeders mainly focused to improve lint production and fiber quality. Now attention has been given to improve the cottonseed oil percentage, its functional and nutritional properties. However, these efforts are less than other major oilseed crops which left cottonseed oil market behind in term of consumer demand and kept cottonseed oil industry at vulnerable position. Considerable progress has been made to alter the relative percentage of fatty acid composition still intensified efforts have been required to meet the global oilseed demand. The objective of this review is to explore the cotton germplasm variation for seed oil carrying potential, its utilization in suitable breeding programs, seed oil biosynthetic pathways, major genes, and QTLs linked to quantity and quality enhancement of oil and deployment of modern genomic tools, viz., gene silencing and transgenic development to ameliorate its nutritional properties.
The genetic components, genetic variability, correlation and path analysis between yield, fiber q... more The genetic components, genetic variability, correlation and path analysis between yield, fiber quality and earliness traits were evaluated in 18 advance lines of cotton along with two checks. The values of heritability were higher for yield and quality parameters, but for earliness traits heritability was moderate. The results of correlation coefficients for days to flower initiation, boll weight, GOT%, sympodia branches and boll number per plant showed significant positive genotypic and phenotypic associations with seed cotton yield. Maximum values of direct effects on yield were also observed for these traits. The results of principal component analysis revealed that 4 four components contributed 78% of total variation. Cluster analysis showed that genotypes in cluster-II viz: FH-488, FH-490, FH-142, FH-451, FH-452, FH-453, FH-455 are exploitable not only for hybridization purpose but also some of the genotypes in this cluster may be recommended for testing in national and provin...
To study the genetic variability in 20 different genotypes of cotton, a preliminary yield trial w... more To study the genetic variability in 20 different genotypes of cotton, a preliminary yield trial was designed at Cotton Research Station, Faisalabad, Pakistan. The results of cluster analysis revealed that cluster 3 comprised of genotypes that have average yield of 3,802 kg/ha and good fiber quality traits while cluster 2 genotypes showed good potential along with staple length of 30 mm. The study of principal components revealed that out of 9 PCs 3 components exhibited eigen value greater than 1. These three PCs contributed 69.2% of the total variability amongst the genotypes assessed for yield, agronomic and fiber traits. The remaining components contributed only 30.8% towards the total variability. The traits like yield, sympodia per plant and bolls per plant showed considerable positive factor loadings on PC I while on PC II, maximum positive loading was shown by plant height, Ginning Out Turn (GOT) and fiber strength and maximum negative loadings were exhibited by fiber length. ...
Journal of Integrative Agriculture, 2019
Cottonseed oil is the valuable byproduct extracted after seed cotton processing for lint. It conf... more Cottonseed oil is the valuable byproduct extracted after seed cotton processing for lint. It confers a huge contribution to total vegetable oil production and ranked the 2nd to meet global edible oil requirements. Over centuries, breeders mainly focused to improve lint production and fiber quality. Now attention has been given to improve the cottonseed oil percentage, its functional and nutritional properties. However, these efforts are less than other major oilseed crops which left cottonseed oil market behind in term of consumer demand and kept cottonseed oil industry at vulnerable position. Considerable progress has been made to alter the relative percentage of fatty acid composition still intensified efforts have been required to meet the global oilseed demand. The objective of this review is to explore the cotton germplasm variation for seed oil carrying potential, its utilization in suitable breeding programs, seed oil biosynthetic pathways, major genes, and QTLs linked to quantity and quality enhancement of oil and deployment of modern genomic tools, viz., gene silencing and transgenic development to ameliorate its nutritional properties.
The genetic components, genetic variability, correlation and path analysis between yield, fiber q... more The genetic components, genetic variability, correlation and path analysis between yield, fiber quality and earliness traits were evaluated in 18 advance lines of cotton along with two checks. The values of heritability were higher for yield and quality parameters, but for earliness traits heritability was moderate. The results of correlation coefficients for days to flower initiation, boll weight, GOT%, sympodia branches and boll number per plant showed significant positive genotypic and phenotypic associations with seed cotton yield. Maximum values of direct effects on yield were also observed for these traits. The results of principal component analysis revealed that 4 four components contributed 78% of total variation. Cluster analysis showed that genotypes in cluster-II viz: FH-488, FH-490, FH-142, FH-451, FH-452, FH-453, FH-455 are exploitable not only for hybridization purpose but also some of the genotypes in this cluster may be recommended for testing in national and provin...