NDLI: Morphostructural Characterization of Rice Grain (Oryza sativa L.) Variety Morelos A-98 during Filling Stages

Content Provider	PubMed Central
Author	Elena, Espinosa-mendoza Rosa Javier, Solorza-feria Lucía, Arenas-ocampo Martha Camacho-díaz, Brenda Hildeliza Del, Villar-martínez Alma Angélica Emilio, Vanegas-espinoza Pablo Ruperto, Jiménez-aparicio Antonio
Copyright Year	2012
Abstract	The morphostructure of grain rice Morelos A-98 was characterized in five stages of physiological maturation, in order to generate morphometric information during the filling process. Micrographic images from optical and scanning electron microscopy coupled to a digital capture system were used. Images were digitally processed to measure different descriptors such as shape, fractal dimension, and surface texture. Results showed that, two weeks after anthesis, an accelerated grain filling was observed, particularly on those grains positioned in the distal panicle zone, compared to those located in the base of this one. As deposition of assimilates in the grain increased, the area and perimeter of the transversal cut of the grains also increased (P ≤ 0.05); meanwhile, the rounded shape factor tended to increase as well (P ≤ 0.05), while the elliptic shape factor decreased. As the dehydrated endosperm passed from “milky” to “doughy” stages, values of fractal dimension area and endosperm perimeter as well as surface texture values showed that grain borders tended to become smoother and that there was a greater structured endosperm area (P ≤ 0.05).
Related Links	http://dx.doi.org/10.1100/2012/940293
Starting Page	940293
File Format	PDF
ISSN	1537744X
e-ISSN	1537744X
Journal	The Scientific World Journal
Volume Number	2012
Language	English
Publisher	The Scientific World Journal
Publisher Date	2012-01-01
Access Restriction	Open
Rights Holder	The Scientific World Journal
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Environmental Science(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry, Genetics and Molecular Biology Environmental Science

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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