نتایج جستجو برای: specific competition

تعداد نتایج: 1113018  

Journal: :تولید گیاهان زراعی 0
علی قنبری استادیار دانشگاه فردوسی مشهد، ابراهیم کازرونی منفرد استادیار دانشگاه جامع علمی- کاربردی محمدتقی آل ابراهیم استادیار دانشگاه محقق اردبیلی سجاد میجانی دانشجوی کارشناسی ارشد دانشگاه فردوسی مشهد مهدی افشاری دانشجوی دکتری دانشگاه فردوسی مشهد جواد شباهنگ کارشناس آموزشی گروه زراعت، دانشگاه فردوسی مشهد

in order to evaluate competition among some weed species and canola, a field experiment in astan ghods razavi's field in mashhad was done on 2007-2008. thirty 50×50 cm quadrates were used in two times (stem and flower production) to measure the canola dry weight, leaf area index and canola and weeds density with destruction and thirty similar quadrates were used for counting weed species a...

Journal: :Complex & Intelligent Systems 2021

Abstract A Pythagorean fuzzy set is very effective mathematical framework to represent parameter-wise imprecision which the property of linguistic communication. soft graph more potent than intuitionistic as well it depicts interactions among objects a system using membership grades with respect different parameters. This article addresses content competition graphs economic like k -competition...

امین‌پناه, هاشم, شریفی, پیمان ,

One component of integrated weed management is use of cultivars with high competitive ability against weeds. Balance between competitiveness and productivity of rice under condition of presence or absence of weeds, is complicated the breeding of rice cultivars to increase competitiveness against weeds. Path coefficient analysis has been widely used in crop breeding to determine the nature of re...

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