Characterization of rice (Oryza sativa L.) genotypes using morphological and biochemical parameters
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Date
2007
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Publisher
CCSHAU
Abstract
Twenty cultivars of rice were studied at Rice Research
Station, Kaul, Chaudhary Charan Singh Haryana Agricultural
University, Hisar during 2006-2007. The study revealed that plant
morphological characters viz. awning, panicle length, plant habit,
Node base colour, stigma colour, Anthocyanin coloration as stem,
node and internodes are the most important diagnostic characters
to variety identification in rice. Stigma colour, attitude of
branching of panicle, flag leaf angle are also helpful in testing the
varietals purity of rice. There are only two characteristics (leaf
Pigmentation and hairiness on leaf blade) which are not very
much helpful in distinguishing the rice variety.
The study also concludes that the seed morphological
characteristics such as Kernel length, breadth, L/B ratio,
hundred seed weight, grain yield, husking percentage, milling
percentage and head rice recovery also proved to be very helpful
in varietals identification. The differential response of paddy
varieties to phenol, FeSo4, NaOH, modified phenol and
KOH-bleach test was found to be accurate means of classification.
The reaction which was observed on the husk was distinct and
consist ant. It is, therefore, concluded that the field morphological
characters and the laboratory parameters could be used for
genetic purity testing.
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Keywords
Rice, Genotypes, Characterization, Stigma, Ligules, Anthocyanin, Panicle, Awning, Flag leaf, Husking, Milling, Pigmentation