Competition between barnyardgrass and rice varieties breeded in the Tohoku area in whole-crop silage rice cultivation
نویسندگان
چکیده
منابع مشابه
the stady and analysis of rice agroclimatology in lenjan
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
15 صفحه اولA Hybrid Classifier for Classification of Rice Crop Varieties
In this paper propose a denoising method for reducing noise in digital images. An efficient RaoBlackwellized Particle Filter (RBPF) with maximum likelihood Estimation approach is used for improving the learning stage of the image structural model and guiding the particles to the most appropriate direction. It increases the efficiency of particle transitions. The proposal distribution is compute...
متن کاملLocating Genes Controlling Allelopathic Effects against Barnyardgrass in Upland Rice
the environment” (Rice, 1984). Rice plants with an allelopathic effect on weeds can mean lower production To understand the genetic control of allelopathy in rice (Oryza costs because the need for herbicide application and/or sativa L.), quantitative trait loci (QTL) mapping was performed using a population of 142 recombinant inbred lines derived from a cross hand weeding is reduced. Thus, inco...
متن کاملMorphological Study of the Relationships between Weedy Rice Accessions (Oryza sativa Complex) and Commercial Rice Varieties in Pulau Pinang Rice Granary Area.
Weedy rice (WR) is found in many direct-seeded rice fields. WR possesses morphological characteristics that are similar to cultivated rice varieties in the early stage of growth, making them more difficult to control than other weeds. A comparative morphological study was conducted by collecting WR accessions from four sites within the Pulau Pinang rice growing areas. The objective of the study...
متن کاملKnowledge level of rice farmers regarding rice cultivation practices in Mahanawiyah district, AL- Qadisiya Province, Iraq
Productivity of most common Iraqi rice cultivar was low compared to an average production among major rice-producing countries, this may be due to inadequacy of knowledge and skills of rice farmers about rice cultivation practices. The study was conducted in Mahanawiyah district of AL-Qadisiya Province in Iraq, to assess knowledge level of rice farmers about some rice cultivation practices .The...
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ژورنال
عنوان ژورنال: Journal of Weed Science and Technology
سال: 2005
ISSN: 0372-798X,1882-4757
DOI: 10.3719/weed.50.supplement_100