نتایج جستجو برای: and storage conditions hence

تعداد نتایج: 16919466  

Objective: Ageing of the stored seed is a natural phenomenon and the seeds tend to lose viability even under ideal storage conditions. Accelerated ageing has been recognized as a good predictor of the storability of seed lots. Aged seeds show decreased vigor and produce weak seedlings that are unable to survive once reintroduced into a habitat. The characteristics of the chemical composition of...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

in this study, scour of mashkid bridge pier located in mashkid river of saravan county has been studied and to measure the scour rate, the numerical model hec-ras 4.0 has been used. upon selection of mashkid river as the case study and whereas the studied zone is important with respect to the climatic conditions and showery monsoon raining and flowing the great and destructive floodwaters, ther...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
ali sedaghat naser sedaghat masoud taghizadeh elnaz milani

introduction: in iran, the main problem in greenhouse cucumber production and post-harvest shelf life is short due to the application of traditional packaging and storage methods. this research was carried out in order to investigate on the effects of packaging type and chitosan edible coating on the physicochemical and sensory characteristics of royal greenhouse cucumber during storage conditi...

ژورنال: سلامت و محیط زیست 2018

Background and Objective: Ethylene oxide (EO) is a very toxic and dangerous substance with a high potential for explosion and fire. Ethylene oxide units are among the most hazardous units in petrochemical industries. This study was designed to analyze and model the consequences of ethylene oxide storage tanks explosion in one of Iran's petrochemical industries. Materials and Methods: In this s...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
hamed hosseini mohammad ghorbani alireza sadeghi mahoonak yahya maghsoudlou

oxidative stability of walnut (juglansregia l.) was evaluated over a period of 1 year storage in various conditions. the whole walnuts, walnut kernels, walnut chopped kernels, walnut kernels packaged in polyethylene (pet) under vacuum and poly propylene (pp) contain of co2 were kept in a normal condition (temperature, 19-30˚с and relative humidity (rh), 35-45%). the whole walnuts and walnut ker...

Journal: :Chemical & Engineering News Archive 1954

Journal: :تولید گیاهان زراعی 0
فرشید قادری فر استادیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان افشین سلطانی استاد گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان حمیدرضا صادقی پور دانشیار گروه زیست شناسی دانشگاه گلستان

seeds deterioration is a natural phenomenon that occurs in all seeds and leading to gradual decline of seed viability during storage. however, the rate at which seeds age depends upon their physiological status, genetic constitution and storage conditions. in the present study we the examined relationship between accumulation of reducing and non-reducing of sugars, soluble protein, the activity...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده تربیت بدنی علوم ورزشی 1390

this research was conducted to examine the effect of a concurrent training on rest level of leptin of plasma and some hormonal factors in non-athlete subjects. the research population included non-athlete men who didn’t participate in any organized sport activities. 30 men were chosen voluntarily among the above-mentioned population and were divided into 2 groups: experimental (15 subjects) an...

Journal: :به زراعی کشاورزی 0
کاظم ارزانی استاد، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران حسن خوش قلب استادیار، گروه باغبانی، دانشکده کشاورزی، دانشگاه شاهرود، شاهرود محمد جعفر ملکوتی استاد، گروه خاکشناسی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران محسن برزگر دانشیار، گروه علوم صنایع غذایی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران

the effect of ca, zn and b foliar application (five g l-1) and their mixed applications as well as two harvest dates (1st and 15st of august) on ppo activity of two commercial asian pears (‘ks’9 and ‘ks’13) fruits at the time of harvest and during storage were investigated. results showed that the ppo activity increased from harvest time to three months after storage and then decreased. during ...

  Food packaging is used to maintain the safety and quality of food during distribution and storage and to protect them from adverse internal and external conditions, such as water vapor, spoilage due to microorganisms, moisture, light, and dust. In this regard, lots of research studies have been done to increase shelf life, safety, and quality to create suitable physico...

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