نتایج جستجو برای: leaf tip necrosis

تعداد نتایج: 214743  

Journal: :علوم باغبانی ایران 0
محمد دیلمقانی حسنلویی کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی سیاوش همتی عسگرآبادتپه کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی حامد دولتی عضو هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان آذربایجان غربی ولی عاقلی مغانجوقی کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی یوسف نیکخواهی دستجردی کارشناس ارشد جهاد دانشگاهی واحد آذربایجان غربی

vineyard management, plant nutrition, irrigation, genotype and pests and diseases are effective factors quantity and quality of crops. among mentioned factors, plant nutrition has more importance and nutrient imbalance in soil can affect crop quantity and quality. grape cluster necrosis at veraison time is important disorders in vineyard, because of lack of balance between potassium and magnesi...

ربانی, گلاره, عزتی, رامین,

Acid rain, which is a wet form of gaseous air pollutants, is formed when air pollutants such as SO2, NO2, CO2 in the atmosphere combine with water vapor of clouds. With the increase of concentration of these pollutants, the amount of acid rain increases. Acid rain, which is the mixture of sulphuric, nitric and carbonic acids, results in some changes in the soil such as decrease in pH, uncommon ...

Journal: :iranian journal of medical physics 0
t. gorjiara m.sc. in medical physics, medical physics dept., tarbiat modarres university, tehran, iran. m. mokhtari-dizaji associate professor, medical physics dept., tarbiat modarres university, tehran, iran. h. ghanaati associate professor, radiology dept., tehran medical sciences university, tehran, iran.

introduction:  laser  interstitial  thermotherapy  (litt)  is  an  internal  ablation  therapy  method  consisting of a percutaneous or intraoperative insertion of laser fibers directly into the liver tumor with  maximum diameter of 5 cm. in this treatment method, there isn’t any general information about the  relationship  between  increasing  the  exposure  power,  coagulation  and  carboniza...

Journal: :نامه انجمن حشره شناسی ایران 0
حسین سید الاسلامی . داریوش دانش . عبدالحسین اسلامی . علیرضا سپاهی .

0

Primary bud necrosis (PBN) of grapevine, which is a physiological disorder, seriously decreases the fruit yield of vineyards. This research was carried out to determine the effects of mineral deprivation on increasing the incidence of PBN in ‘Askari’ table grapes in Sisakht region of Southwest of Iran. For this purpose, the changes of mineral elements in leaves and PBN percentage were estimated...

2016
Lei Ding Yingrui Li Ying Wang Limin Gao Min Wang François Chaumont Qirong Shen Shiwei Guo

In previous studies, we demonstrated that ammonium nutrition enhances the drought tolerance of rice seedlings compared to nitrate nutrition and contributes to a higher root water uptake ability. It remains unclear why rice seedlings maintain a higher water uptake ability when supplied with ammonium under drought stress. Here, we focused on the effects of nitrogen form and drought stress on root...

Journal: :Plant physiology 1945
C P Sideris H Y Young

A study concerned with the effects of iron on chlorophyll, acidity, ascorbic acid, and carbohydrate fractions of Ananas comosus was reported in a previous publication (35). Also, the effects of different amounts of potassium on growth and ash constituents of the same plants were reported in a former paper of this series (36). This study is concerned with the effects of potassium on chlorophyll,...

Journal: :anatomical sciences journal 0
houshang rafighdoost department of anatomy, school of medicine, zahedan university of medical sciences, zahedan, iran. majid tavafi department of anatomy, faculty of medicine, lorestan university of medical sciences, khorramabad, iran. leila jafari pour razi herbal medicines research center, lorestan university of medical sciences, khorramabad, iran. bahram rasoulian razi herbal medicines research center, lorestan university of medical sciences, khorramabad, iran. hassan ahmadvand department of biochemistry, faculty of medicine, lorestan university of medical sciences, khoramabad, iran. mona mahmodi department of biochemistry, payam noor university, taft branch,yazd, iran.

introduction: renal ischemia reperfusion is considered to be one of the causes of acute renal failure (aki). in addition, renal ischemia is an important incident usually occurs due to renal transplantion, repair of suprarenal aneurysm, hemorrhagic shock. a recent study reported that reactive oxygen species (ros) are important mediators of aki. it seems essential to use antioxidant to decrease t...

2016
Chenguang Zhou Chenghao Li

We isolated a R2R3-MYB transcription factor BpMYB106, which regulates photosynthesis in birch (Betula platyphylla Suk.). BpMYB106 mainly expresses in the leaf and shoot tip of birch, and its protein is localized in the nucleus. We further fused isolated a 1588 bp promoter of BpMYB106 and analyzed it by PLACE, which showed some cis-acting elements related to photosynthesis. BpMYB106 promoter β-g...

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