effect of multispecies interference of common cocklebur (xanthium strumarium l.) and red root pigweed (amaranthus retroflexus) on soybean (glycine max) yield and yield components
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effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars
این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
canopy architecture of soybean (glycine max), xanthium strumarium and amaranthus retroflexus under different interference condition
in order to evaluate the effects of xanthium strumarium or amaranthus retroflexus competition under unsprayed and sprayed (half the recommended rate of imazethapyr) on canopy architecture of weed and soybean, field experiment was conducted at the research farm of university of tehran, during the growing season of 2007 and 2008. the experimental design was factorial based on randomized complete ...
متن کاملeffects of redroot pigweed (amaranthus retroflexus) on yield and yield components of soybean
in order to study the effect of different redroot pigweed (amaranthus retroflexus) density on yield, yield components of soybean cultivar and determining competitive cultivar, a field experiment was carried out at mazandaran agricultural research station 2006. experiment was set up at a randomized complete block design with five rates of pigweed (0, 4, 8, 12 and 16 plant per square meter) and t...
متن کاملStudy of morphological and physiological response of red root pigweed (Amaranthus retroflexus L.) to drought stress
Redroot pigweed (Amaranthus retroflexus L.) is a noxious and cosmopolitan weed that is widely distributed in different parts of the world and competes severely with crops and reduces their growth and yield. The present study was conducted to investigate the effect of drought stress on some morphological and physiological characteristics of redroot pigweed in 2018 and 2019. Treatments included d...
متن کاملeffect of methanol spraying on yield and yield components of soybean (glycine max l.)
in order to evaluate the application of methanol on yield and yield components of soybean (glycine max l., var. l 17) in field conditions, experiments were conducted based on a randomized complete block design with three replications at the field research from faculty of agricultural of islamic azad university karaj, iran, during 2008. sprayed aqueous solutions were zero (control), 7, 14, 21, 2...
متن کاملInterference between Redroot Pigweed (Amaranthus retroflexus L.) and Cotton (Gossypium hirsutum L.): Growth Analysis
Redroot pigweed is one of the injurious agricultural weeds on a worldwide basis. Understanding of its interference impact in crop field will provide useful information for weed control programs. The effects of redroot pigweed on cotton at densities of 0, 0.125, 0.25, 0.5, 1, 2, 4, and 8 plants m(-1) of row were evaluated in field experiments conducted in 2013 and 2014 at Institute of Cotton Res...
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عنوان ژورنال:
علوم گیاهان زراعی ایرانجلد ۴۰، شماره ۲، صفحات ۰-۰
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