Efficacy of weed extract as a bioherbicide in rice (Oryza sativa L.) cultivation

Correlation Studies in Rice (Oryza sativa L.)

Seventy genotypes of rice (Oryza sativa L.) were evaluated during Kharif 2012 to study the nature and extent of correlation among yield and yield attributing characters, days to 50 per cent flowering, days to maturity, number of effective tillers per plant, plant height, panicle length, number of grains per panicle, 1000-grain weight, grain yield per plant, kernel length, kernel breadth and L/B...

Effects of Seeding Time and Weed Control Methods in Direct Seeded Rice (oryza Sativa L.)

Field experiments were conducted during the 2 year period from 2008 and 2009 to determine the effects of three seeding dates and seven weed control methods in DSR. The results suggested that seeding in the first week of July reduced weed density and biomass, increased kernel weight, leaf area index, and kernel yield compared to seeding rice in the first week of July. Amongst weed control method...

PROBLEMS AND SUGGESTIONS FOR FARMERS’ ADOPTION OF IPM PRACTICES IN RICE (Oryza sativa L) CULTIVATION

A study was carried out to determine the problems in IPM practices for rice cultivation faced by the farmers trained in IPM through Farmers’ Field School (FFS) and also to find out the important probable suggestions for overcoming those problems. Data were collected from 158 respondent farmers sampled randomly from 1050 FFS farmers of Godagari Upazila in Rajshahi district. Twenty important prob...

The extent of linkage disequilibrium in rice (Oryza sativa L.).

Despite its status as one of the world's major crops, linkage disequilibrium (LD) patterns have not been systematically characterized across the genome of Asian rice (Oryza sativa). Such information is critical to fully exploit the genome sequence for mapping complex traits using association techniques. Here we characterize LD in five 500-kb regions of the rice genome in three major cultivated ...

Iron Bioavailability and Arsenic Uptake in Rice (Oryza sativa L.)