نتایج جستجو برای: waterlogging conditions effect

تعداد نتایج: 2362658  

Journal: :به زراعی کشاورزی 0
علی اسدی کنگرشاهی دانشجوی دکتری علوم خاک، دانشکدۀ مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران غلامرضا ثواقبی استاد بخش علوم خاک، دانشکدۀ مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران. محمود سمر استادیار مؤسسة تحقیقات خاک و آب کشور محسن فرحبخش استادیار بخش علوم خاک، دانشکدۀ مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

changes in chlorophyll florescence is one of the physiological responses of plants to waterlogging stress. due to easily measured in field and its inexpensive and non-destructive characteristics, it is one of the best ways to assess different genotypes tolerance to stresses. in this experiment, trends of chlorophyll fluorescence index (fv/fm) of ‘satsuma’ mandarin (citrus unshiu) on seven roots...

2012
M. E. Ghobadi M. Ghobadi

Waterlogging reduces shoot and root growth and final yield of wheat. Waterlogged sites have a combination of low slope, high rainfall, heavy texture and low permeability. This study was aimed the importance of waterlogging on root growth and wheat yield. In order to study the effects of different waterlogging duration (0, 10, 20 and 30 days) at growth stages (1-leaf stage, tillering stage and s...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...

Journal: :Frontiers in Marine Science 2023

Elucidating the effect of soil moisture on adaptation dominant plants in coastal wetlands is important for predicting evolution vegetation region. In this paper, Tamarix chinensis , a species Yellow River Delta, was used as object to study changes its growth and physiological parameters with increasing salinity under different conditions (normal watering, persistent drought waterlogging). Diffe...

ژورنال: بوم شناسی آبزیان 2016
Ghojoghdordi, Abdolkhalegh , Mohammad Esmaili, Majid , Rahemi Karizaki, Ali, Sattarian, Ali,

We conducted a glasshouse experiment as a  factorial in randomized study with six replications on pasture species of Schoenoplectus triqueter in Gonbad Kavoos University from 2012-2013. Treatments included height waterlogging in four levels (control, equal to the water surface, 10 cm below the water surface, 20 cm below the water surface) and waterlogging period over three levels (10, 20 and 30...

2014
Xiling Zou Chengwei Hu Liu Zeng Yong Cheng Mingyue Xu Xuekun Zhang

Waterlogging tolerance is typically evaluated at a specific development stage, with an implicit assumption that differences in waterlogging tolerance expressed in these systems will result in improved yield performance in fields. It is necessary to examine these criteria in fields. In the present study, three experiments were conducted to screen waterlogging tolerance in 25 rapeseed (Brassica n...

Journal: :تحقیقات آب و خاک ایران 0
علی اسدی کنگرشاهی دکتری علوم خاک بخش تحقیقات خاک و آب مرکز تحقیقات کشاورزی و منابع طبیعی مازندران غلام رضا ثواقبی استاد بخش خاک شناسی دانشکدة مهندسی و فناوری کشاورزی پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمود سمر استادیار مؤسسة تحقیقات خاک و آب کشور نگین اخلاقی امیری استادیار بخش باغبانی مرکز تحقیقات کشاورزی و منابع طبیعی مازندران

in this research, catalase activity and leaf chlorophyll stability of satsuma mandarin on some citrus rootstocks under waterlogging condition were studied. experiment was conducted as factorial with randomized complete blocks and 6 replications. the first factor, include 7 soils from east mazandaran and the second factor included 7 different citrus rootstocks: 1. sour orange, 2. swingle citrome...

2005
Arun Dev Sharma Neha Singh Jagjeet Kaur Kang

Short-term waterlogging stress-induced changes in phosphatase (P-ase) activities in relationship with phosphorus were studied in sorghum (Sorghum bicolor). Waterlogging was imposed by watering 3-day-old grown seedlings with water. The shoots and roots were harvested and P-ase activities were estimated. Significant waterlogging stress-induced increase in shoot and root P-ase activities coupled w...

2017
Ullah Najeeb Daniel K.Y. Tan Michael P. Bange Brian J. Atwell

This study explores the relationship between endogenous ethylene levels in stress-induced fruit abscission in different cotton cultivars. The plants were exposed to soil waterlogging or high temperature (45C) stress during early reproductive phase. Ethylene synthesis was also modified using chemical ethylene regulators e.g. aminoethoxyvinylglycine (AVG) and 1-aminocyclopropane-1-carboxlic acid ...

2016
Yuyan An Lin Qi Liangju Wang Ricardo Aroca

5-aminolevulinic acid (ALA), a natural and environmentally friendly plant growth regulator, can improve plant tolerance to various environmental stresses. However, whether ALA can improve plant waterlogging tolerance is unknown. Here, we investigated the effects of ALA pretreatment on the waterlogging-induced damage of fig (Ficus carica Linn.) plants, which often suffer from waterlogging stress...

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