نتایج جستجو برای: flowering stage and vegetative stage

تعداد نتایج: 16869742  

Background: The genus Nepeta comprise various annual and perennial plants with 250 species in different parts of the world. 67 species of Nepeta have been reported in Iran in which 39 ones are endemic to Iran. Nepeta eremokosmos Rech.f. is an endemic plant growing in the Semnan of Iran. Objective: The present study was conducted to assess the quantitative and qualitative properties of Nepeta er...

Journal: :journal of agricultural science and technology 2011
s. m. razavi

prangos ferulacea (apiaceae) is a perennial herb with a distribution from east europe to middle east and central asia. the plant’s leaves are used as animal fodder. its fruits and roots possess biological traits that provide it with the potential to be used for medicinal purposes. the essential oils obtained through hydrodistillation from aerial parts of prangos ferulacea at the vegetative and ...

Journal: :دانش گیاه پزشکی ایران 0
زهرا فرخی دانش آموخته ارشد دانشگاه تهران حسن علیزاده دانشیار دانشگاه تهران حمید رحیمیان مشهدی استاد دانشگاه تهران

to study the effect of glyphosate application rate and timing on johnsongrass (sorghum halepense) vegetative and reproductive growth, three experiments were conducted in field, greenhouse, and laboratory in the agronomy department of university of tehran, karaj, in 2007 & 2008. in each experiment, treatments were arranged in completely randomized (greenhouse & laboratory) and completely randomi...

Journal: :پژوهش های حبوبات ایران 0
فریده سادات حسینی احمد نظامی مهدی پارسا کمال حاج محمدنیا قالی باف

supplementary irrigation is a key factor in dryland production of lentil (lens culinaris medik.). in order to study the effects of supplementary irrigation on phenological and morphological characters of three lentil (lens culinaris medik.) cultivars, a trial carried out as split block based on randomized complete block design with three replications at research field of agricultural college, f...

Journal: :علوم دامی ایران 0
تقی نجفی دانشجوی کارشناسی ارشد، دانشگاه زابل محمد رضا دهقانی دانشیار، دانشگاه زابل مصطفی یوسف الهی دانشیار، دانشگاه زابل

the aim of this research was determination of nutritive value of cressa cretica with gas test method, in vivo digestibility and degradability with nylon bag method in three phenological stages. the amount of crude protein decreased significantly in seeding stage. but the amount of ndf and adf increased in seeding stage. the degradability of dry matter and rapid and slowly degradable fractions d...

Journal: :Pakistan journal of biological sciences : PJBS 2008
Zinolabedin Tahmasebi Sarvestani Hemmatollah Pirdashti Seyed Ali Mohammad Modarres Sanavy Hamidreza Balouchi

A field experiment was conducted during 2001-2003 to evaluate the effect of water stress on the yield and yield components of four rice cultivars commonly grown in Mazandaran province, Iran. In northern Iran irrigated lowland rice usually experiences water deficit during the growing season include of land preparation time, planting, tillering stage, flowering and grain filing period. Recently d...

Abstract In order to determine the best water production function (CWPF) for predicting grain yield of a soybean crop four models were evaluated. The four functions evaluated were Jensen (1968), Minhas et al (1974) and modified Stewart et al (1977) and modified Bras and Corodova (1981) models. Field experiments were carried out for evaluation of the models. The grain yields simulated by the c...

ژورنال: مرتع 2020
Dashtizadeh, Mahmood, Kabiri Fard, Abdlomahdi, Kamali, Amirarsalan, Khaj, Hossein, Sadeghi, MohammadHadi, Sadeghi, Seyed Abootaleb,

This research was carried out to determine nutritive value of Medicago polymorpha and Malva parviflora in various growth stages. The study was conducted at three rangelands during December 2013 to May 2014. The samples of plants were randomly taken in three stages including vegetative growth, flowering and maturity (seed production). Samples of each stage and place were analyzed for DM, CP, EE,...

Ali Reza Ghiasvand Hamzeh Amiri,

The composition of hydro-distilled essential oils of Phlomis anisodonta Boiss. subsp. occidentalis Jamzad in vegetative, flowering and post flowering stages were investigated using GC and GC-MS, leading to identification of 41, 26 and 23 compounds, respectively. In all three samples, sesquiterpenes were the main components. In vegetative stage the main components of the oil were germacrene-D (1...

The present study was conducted to identify nutritional value of Rumex obtusifolius in three phenological stages (vegetative growth, flowering, and maturity). Samples were randomly taken in pastures of Saravan in Rasht, Iran in 2015. After drying and grinding, the chemical compositions of Crude Protein (CP), Crude Fiber (CF), Ether Extract (EE), Total Ash (ASH), Neutral Detergent Fiber (NDF), a...

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