73 research outputs found
Molecular and morphological diversity in locally grown non-commercial (heirloom) mango varieties of North India
Mango (Mangifera indica L.) has been cultivated and conserved in different agro-ecologies including Malihabad region in northern part of India, that is well known for housing diverse types (heirloom and commercial varieties). In the present study, 37 mango types comprising of 27 heirloom varieties from Malihabad region and 10 commercial varieties grown in North and Eastern India were assessed for morphological attributes and molecular diversity. The employed SSR markers amplified 2-13 alleles individually, cumulatively amplifying 124 alleles. These were studied for allelic diversity and genetic dissimilarity ranged from 0.035 to 0.892 arranging the varieties in three major clusters. The results revealed that majority of unique heirloom mangoes from Malihabad were different from the eastern part of the country. It is interesting to note Dashehari, a commercial variety from Malihabad was not aligned with heirloom varieties. Commercial varieties like Gulabkhas and Langra were placed in a separate group including Bombay Green, Himsagar, Dashehari, etc., indicating their dissimilarity with heirloom varieties at molecular level and thus, indicating importance for later from conservation point of view. Furthermore, the hierarchical clustering of varieties based on fruit morphology, assembled these into four groups largely influenced by fruit size. The maximum agreement subtree indicated seemingly good fit as thirteen varieties were arrayed in common grouping pattern. Appreciable dissimilarity among the heirloom varieties demonstrated by molecular analysis, underlines the importance for their on-farm conservation
Degradation study of polypropylene (PP) and bioriented polypropylene (BOPP) in the environment
Natural fullerenes from the K/T boundary layer at Anjar, Kutch, India
This article does not have an abstract
Deformation-Induced Morphology Changes and Orientation Behavior in Syndiotactic Polypropylene
Syndiotactic polypropylene (sPP) exhibits a complex crystalline morphology, characterized by unique annealing- and deformation-induced changes. Rheooptical FTIR spectroscopy, wide-angle X-ray diffraction (WAXD), and Raman spectroscopy are used to characterize morphology and orientation responses of highly syndiotactic sPP to tensile drawing. Solid-state thin films of different initial morphology, either quenched or slowly cooled from the melt, are studied. Results suggest that a gradual transition in macromolecular chain conformation, from gauche−gauche−trans−trans helical to all-trans planar, is observed at room temperature for quenched samples that are drawn up to 400% strain. This transition is marked initially by the gradual disappearance of helical chains (disordered form I) and the subsequent emergence of a mesophase, which may transform into form III crystals at even greater strains. Our primary investigational tool, the rheo-FTIR spectrometer, allows us to monitor the presence and orientation of amorphous, mesomorphic, and crystalline domains directly, simultaneously, and sensitively. Results from all of the techniques used are correlated in an effort both to assign IR peaks to characteristic sPP moieties and to generate a plausible physical model of the deformation dynamics in melt-quenched sPP
Correlation of ethnicity and socioeconomic status with outcome after allogeneic stem cell transplantation
Deformation-Induced Morphology Changes and Orientation Behavior in Syndiotactic Polypropylene
Not Available
Not AvailableMango (Mangifera indica L.) has been cultivated and conserved in different agro-ecologies
including Malihabad region in northern part of India, that is well known for housing diverse types
(heirloom and commercial varieties). In the present study, 37 mango types comprising of 27
heirloom varieties from Malihabad region and 10 commercial varieties grown in North and
Eastern India were assessed for morphological attributes and molecular diversity. The employed
SSR markers amplified 2-13 alleles individually, cumulatively amplifying 124 alleles. These were
studied for allelic diversity and genetic dissimilarity ranged from 0.035 to 0.892 arranging the
varieties in three major clusters. The results revealed that majority of unique heirloom mangoes
from Malihabad were different from the eastern part of the country. It is interesting to note
Dashehari, a commercial variety from Malihabad was not aligned with heirloom varieties.
Commercial varieties like Gulabkhas and Langra were placed in a separate group including
Bombay Green, Himsagar, Dashehari, etc., indicating their dissimilarity with heirloom varieties at
molecular level and thus, indicating importance for later from conservation point of view.
Furthermore, the hierarchical clustering of varieties based on fruit morphology, assembled these
into four groups largely influenced by fruit size. The maximum agreement subtree indicated
seemingly good fit as thirteen varieties were arrayed in common grouping pattern. Appreciable
dissimilarity among the heirloom varieties demonstrated by molecular analysis, underlines the
importance for their on-farm conservation.Not Availabl
Not Available
Not AvailableMango (Mangifera indica L.) has been cultivated and conserved in different agro-ecologies
including Malihabad region in northern part of India, that is well known for housing diverse types
(heirloom and commercial varieties). In the present study, 37 mango types comprising of 27
heirloom varieties from Malihabad region and 10 commercial varieties grown in North and
Eastern India were assessed for morphological attributes and molecular diversity. The employed
SSR markers amplified 2-13 alleles individually, cumulatively amplifying 124 alleles. These were
studied for allelic diversity and genetic dissimilarity ranged from 0.035 to 0.892 arranging the
varieties in three major clusters. The results revealed that majority of unique heirloom mangoes
from Malihabad were different from the eastern part of the country. It is interesting to note
Dashehari, a commercial variety from Malihabad was not aligned with heirloom varieties.
Commercial varieties like Gulabkhas and Langra were placed in a separate group including
Bombay Green, Himsagar, Dashehari, etc., indicating their dissimilarity with heirloom varieties at
molecular level and thus, indicating importance for later from conservation point of view.
Furthermore, the hierarchical clustering of varieties based on fruit morphology, assembled these
into four groups largely influenced by fruit size. The maximum agreement subtree indicated
seemingly good fit as thirteen varieties were arrayed in common grouping pattern. Appreciable
dissimilarity among the heirloom varieties demonstrated by molecular analysis, underlines the
importance for their on-farm conservation.Not Availabl
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