نتایج جستجو برای: but stress at other growth stages of sugar beet seed

تعداد نتایج: 21541000  

Journal: :چغندرقند 0
سعید صادق زاده حمایتی مربی پژوهش مؤسسه تحقیقات چغندرقند

this study was carried out in order to identify the effects of soil water depletion (swd) on monogerm sugar beet (cv. shirin) seed growth trend at different growth stages. an experiment was conducted in randomized complete block design (rcbd) with three replications in ardebil agricultural research station. during 2002 and 2003 cropping seasons, nine treatments including control (irrigation aft...

Journal: :چغندرقند 0
سمر خیامیم استادیار موسسه تحقیقات اصلاح و تهیه بذر چغندرقند محمد رضا جهاداکبر مربی مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان حمید نوشاد مربی موسسه تحقیقات چغندرقند فرانک روزبه مربی موسسه تحقیقات چغندرقند لیلا زاویه مودت کارشناس ارشد سازمان جهاد کشاورزی آذربایجان غربی

determination of chlorophyll content and chlorophyll fluorescence has the potential needed to analyze the efficiency of photosynthesis in plants against environmental stresses, especially salinity, and its simplicity facilitates stress evaluation. in order to study the response of different photosynthetic characters to salinity stress at different sugar beet growth stages, two separate experime...

DOR: 98.1000/2383-1251.1397.5.87.9.1.1578.1610 Extended abstract Introduction: Drought stress is one of the major problems in sugar beet production in Iran, and is the most important limiting factor for germination and establishment of sugar beet in the early stages of growth. Seed priming with chemical, nutrient elements or pre-chilling techniques are the most effective methods to impro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

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...

Journal: :چغندرقند 0
محمدرضا میرزایی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان همدان

for determination of water stress effects in different growth stages of sugar beet and optimum water usage on quantity and quality of sugar beet, this study was performed using randomized complete blocks design in factorial experiment with 12 treatments and 4 replications from 1999 to 2001 in agricultural research center of hamadan. the first factor was non-irrigation in 3 stages of growth (s1-...

Journal: :چغندرقند 0
رحیم محمدیان استادیار مؤسسه تحقیقات چغندرقند

water stress is one of the main factors affecting the quantity and quality properties of sugar beet. the objective of this experiment was to study the effect of irrigation management on quality and quantity of sugar beet. the present research was conducted in motahary station of sugar beet seed institute,karajin two years, 2005 and 2006. the experiment was based on split plot design, in which e...

Journal: :journal of agricultural science and technology 2014
s. khayamim r. tavkol afshari s. y. sadeghian k. poustini f. roozbeh

it is well known that sugar beet is sensitive to salinity stress at the germination stage. three separate experiments were conducted to study the effects of salinity on seed germination, plant establishment, and yield of sugar beet genotypes for screening purposes. these included: (a) a laboratory study using four water salinity levels (with ec values < 0.1 as the control, 16, 20, and 24 ds m-1...

Journal: :چغندرقند 0
محمدرضا جهاداکبر مربی مرکز تحقیقات کشاورزی و منابع طبیعی

in order to study the effect of irrigation water salinity on quality and quantity of sugar beet (beta vulgaris) at four growth stages, an experiment was conducted in rudasht salinity and drainage research center from 2004-2006. in this experiment, 11 different water salinity treatments and three sugar beet cultivars (ic, 7233 & 7233-p29*msc2) were considered using split plot design based on ran...

Journal: :چغندرقند 0
امیر نورجو عضو هیئت علمی بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی آذربایجانغربی مهدی بقایی کیا کارشناس بخش تحقیقات چغندرقند مرکز تحقیقات کشاورزی آذربایجانغربی

water stress decrease water content and water potential between soil and root. therefore, water potential  of plant declines and plant faces with water stress. water stress in different stages of growth can be useful in different aspects. water stress can be practiced from two point of view, increasing water use efficiency (wue) and improving cultural practices. no irrigation in insensitive sta...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

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