Varying degrees of reduction of genetic diversity in crops relative to their wild progenitors occurred during the process of domestication. Such information, however, has not been available for the Asian cultivated rice (Oryza sativa) despite its importance as a staple food and a model organism. To reveal levels and patterns of nucleotide diversity and to elucidate the genetic relationship and ...

A study of Hassawi rice (Oryza sativa L.) in terms of its carbohydrate hydrolysis in vitro and glycaemic and insulinaemic indices in vivo Abstract Background/Objectives: A high prevalence of Type 2 diabetes exists in Saudi Arabia.

This study aimed to determine the ratooning ability of lowland rice production management practices. It assessed profitability abovementioned objectives. The experiment was set out in a split-plot organized Randomized Complete Block Design with practices as main plot and cutting heights ratoon crop subplot treatment. Production notably affected all agronomic characteristics, yield, yield compon...

BACKGROUND Rice has been found in archaeological sites dating to 8000 bc, although the date of rice domestication is a matter of continuing debate. Two species of domesticated rice, Oryza sativa (Asian) and Oryza glaberrima (African) are grown globally. Numerous traits separate wild and domesticated rices including changes in: pericarp colour, dormancy, shattering, panicle architecture, tiller ...

Introducción. La transformación del arroz (Oryza sativa L. ssp indica) mediada por Agrobacterium, representa una oportunidad para la investigación científica y el mejoramiento genético. Es necesaria optimización protocolo obtener mayor eficiencia de transformación. Objetivo. Evaluar diferentes factores que afectan genética en callos embriogénicos subespecie indica vía Agrobacterium tumefaciens....

In this study, the uptake of Na+ into the cytosol of rice (Oryza sativa L. cvs Pokkali and BRRI Dhan29) protoplasts was measured using the acetoxy methyl ester of the fluorescent sodium-binding benzofuran isopthalate, SBFI-AM, and fluorescence microscopy. By means of inhibitor analyses the mechanisms for uptake and sequestration of Na+ in the salt-sensitive indica rice cv. BRRI Dhan29 and in th...