نتایج جستجو برای: rootshoot fresh and dry weight ratio

تعداد نتایج: 16894407  

Anoosh Zamiran Mohammad Reza Maleki Vahid Reza Saffari

The effect of electromagnetic field was examined on Zinnia (Zinnia elegans) seeds to enhance seed germination and early growth. The seeds were exposed to four magnetic strengths of 15, 100, 400 and 800 mT in four durations of 30, 60, 120 and 240 min. The experiments were carried out in two forms of laboratory germination and soil emergence. Results showed that magnetic field application enhance...

Journal: :علوم گیاهان زراعی ایران 0
جعفر نباتی دانشجوی سابق دکتری دانشکده کشاورزی دانشگاه فردوسی مشهد محمد کافی دانشیار دانشکده کشاورزی دانشگاه فردوسی مشهد احمد نظامی استادیار دانشکده کشاورزی دانشگاه فردوسی مشهد پرویز رضوانی مقدم استادیار دانشکده کشاورزی دانشگاه فردوسی مشهد علی معصومی استادیار دانشگاه پیام نور خراسان رضوی محمد زارع مهرجردی دانشجوی دکتری بیوتکنولوژی دانشکده کشاورزی دانشگاه فردوسی مشهد

kochia is a halophyte plant and is a good source of forage for livestock under saline irrigation. in order to investigate the salinity effect on morphological and forage characteristics of kochia, an experiment was conducted. three saline waters (5.2, 10.5 and 23.1 ds m-1) and three kochia ecotypes (birjand, borujerd and sabzevar) were allocated as main and sub plots, respectively, in a split p...

Journal: :تحقیقات آب و خاک ایران 0
اسماء مقبلی مهنی دررودی دانشجوی کارشناسی ارشد آبیاری و زهکشی، گروه مهندسی آب، دانشکدة آب و خاک، دانشگاه زابل معصومه دلبری دانشیار گروه مهندسی آب، دانشکدة آب و خاک، دانشگاه زابل نادر کوهی عضو هیئت علمی، بخش فنی و مهندسی، مرکز تحقیقات کشاورزی و منابع طبیعی استان کرمان

throughout the present study some vegetative and reproductive characteristics of rosa damascene fewer than three different irrigation regimes (100, 70 and 40% of potential evapotranspiration) through an application of surface vs subsurface drip irrigation systems were investigated. some morphological characteristics investigated, included the number of branches per plant, shading diameter, plan...

Journal: :international journal of advanced biological and biomedical research 2014
mahnaz shirkhodaei mohammad taghi darzi mohammadreza haj seyed hadi

the main objective of this study was to determine the influence of vermicompost and biostimulant on the growth and biomass in the coriander plant height, wet weight of plant ,dry weight of plant and biomass yield. the experiment was carried out as factorial experiment in the base of randomized complete blocks design with eight treatments and three replications at research field of agriculture c...

Journal: :journal of crop nutrition science 0
asoodeh makvandi master of science of agronomy, iran.

in order to study the effect of chemical and biological fertilizers on silage corn under different plant densities, a split plot experiment was carried out in a randomized completely block design with three replicates in south western iran. the main plot included nitrogen fertilizer treatment at three levels (n1: with out chemical and organic fertilizers, n2: 75% chemical fertilizer + 100% orga...

Journal: :حفاظت گیاهان 0
(مقاله کوتاه پژوهشی)هانیه توحیدی فرید یوسف فیلی زاده

abstract coontail (ceratophyllum demersum) and watermilfoil (myriophyllum spicatum) are current submersed weeds in many fresh waters of iran. the excessive growth of these plants causes the reduction in utilization of water resources and making some ecological and economical damages in these areas. the aim of this study was to determine the response of two submerged aquatic weeds of coontail an...

M. Zahedi N. Moallemi S. Mortazavi V. Abdossi

In this study the effects of plant growth regulators including; GA3 (0 and 50 mg/l) and ethephon (0 and 500 mg/l) were studied on the quality properties of two grape cultivars (Perlette and Yaghuti). At the harvest time, some physicochemical characteristics such as fruit cluster weight, fruit diameter, length, volume and L/D ratio, flesh firmness, fresh weight, TA, pH, TSS and fruit color were ...

A soilless cultivation experiment, in a medium containing sand, perlite and peat, based on Hoagland nutrient solution, was designed and carried out to investigate the growth and postharvest response of Zinnia to different concentrations of nitrogen (N) and calcium (Ca). Treatments included control 1 (without nutrient solution), control 2 (nutrient solution without N and Ca), and the mixtures of...

Journal: Desert 2020
A. Fotovat F. Kazemi, M. Jozay

Application of green walls still has not attracted interest among the contractors and people, and this can be due to poor growing performance of the plants on these systems. This study investigated the effect of four growing media types (30% cocopeat + 65% perlite + 5% vermicompost, 30% soil + 65% perlite + 5% vermicompost, 30% mushroom compost + 65% perlite + 5% vermicompost and regular soil a...

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