نتایج جستجو برای: drought stress

تعداد نتایج: 459631  

A. Tadayyon H. Abasalipour H. Zinali S. Houshmand,

To examine the genetic variation for drought stress in chamomile, eight accessions belonging to four species were evaluated under both field and greenhouse conditions using normal and late season drought stress. In the field experiment drought stress were initiated with irrigation cease at the commencement of flowering time. In greenhouse experiment, irrigation carried out at flower initiation ...

2015
Kamrun Nahar Mirza Hasanuzzaman Md. Mahabub Alam Masayuki Fujita

Drought is considered one of the most acute environmental stresses presently affecting agriculture. We studied the role of exogenous glutathione (GSH) in conferring drought stress tolerance in mung bean (Vigna radiata L. cv. Binamoog-1) seedlings by examining the antioxidant defence and methylglyoxal (MG) detoxification systems and physiological features. Six-day-old seedlings were exposed to d...

2017
Margaret Catolos Nitika Sandhu Shalabh Dixit Noraziya A. A. Shamsudin Ma E. B. Naredo Kenneth L. McNally Amelia Henry Ma G. Diaz Arvind Kumar

Drought is the major abiotic stress to rice grain yield under unpredictable changing climatic scenarios. The widely grown, high yielding but drought susceptible rice varieties need to be improved by unraveling the genomic regions controlling traits enhancing drought tolerance. The present study was conducted with the aim to identify quantitative trait loci (QTLs) for grain yield and root develo...

Journal: :international journal of advanced biological and biomedical research 2014
morteza shamsizadeh morad shaban zahra rahmati motlagh

objective: drought stress is most important factor which reduce root and shoot growth in crops. this study was performed in order to evaluate the effects of drought stress and zn fertilizer on root traits of four cultivars of chickpea. methods: experiment was laid out in a split plot-factorial using randomized complete block design with three replications. drought stress treatment stand in main...

Journal: :Plant physiology 1987
J C Vu L H Allen G Bowes

Soybean (Glycine max [L.] cv Bragg) was grown at 330 or 660 microliters CO(2) per liter in outdoor, controlled-environment chambers. When the plants were 50 days old, drought stress was imposed by gradually reducing irrigation each evening so that plants wilted earlier each succeeding day. On the ninth day, as the pots ran out of water CO(2) exchange rate (CER) decreased rapidly to near zero fo...

2013
Muhammad Tariq Denis J. Wright Toby J. A. Bruce Joanna T. Staley

Multitrophic interactions are likely to be altered by climate change but there is little empirical evidence relating the responses of herbivores and parasitoids to abiotic factors. Here we investigated the effects of drought on an above/below-ground system comprising a generalist and a specialist aphid species (foliar herbivores), their parasitoids, and a dipteran species (root herbivore).We te...

2012
Inga Mewis Mohammed A. M. Khan Erich Glawischnig Monika Schreiner Christian Ulrichs

Little is known about how drought stress influences plant secondary metabolite accumulation and how this affects plant defense against different aphids. We therefore cultivated Arabidopsis thaliana (L.) plants under well-watered, drought, and water-logged conditions. Two aphid species were selected for this study: the generalist Myzus persicae (Sulzer) and the crucifer specialist Brevicoryne br...

2016
Haowei Min Chengxuan Chen Shaowei Wei Xiaoling Shang Meiyun Sun Ran Xia Xiangguo Liu Dongyun Hao Huabang Chen Qi Xie

Zea mays is an important crop that is sensitive to drought stress, but survival rates and growth status remain strong in some drought-tolerant lines under stress conditions. Under drought conditions, many biological processes, such as photosynthesis, carbohydrate metabolism and energy metabolism, are suppressed, while little is known about how the transcripts of genes respond to drought stress ...

2017
Mahesh K. Samota Minnu Sasi Monika Awana Om P. Yadav S. V. Amitha Mithra Aruna Tyagi Suresh Kumar Archana Singh

Rice (Oryza sativa L.) is one of the major grain cereals of the Indian subcontinent which face water-deficit stress for their cultivation. Seed-priming has been reported to be a useful approach to complement stress responses in plants. In the present study, seed-priming with hormonal or chemical elicitor [viz. methyl jasmonate (MJ), salicylic acid (SA), paclobutrazol (PB)] showed significant in...

Journal: :پژوهش های زراعی ایران 0
سیروس منصوری‏فر مراد شعبان مختار قبادی سید حسین صباغ‏پور

plant photosynthetate partitioning is important in seed yield formation. in this research, in order to study grain filling procedure of chickpea in the presense of drought stress and nitrogen (n) fertilizer on remobilization rate, final grain weight and grain yield were measured. experiment was performed in an split-factorial using randomized complete block design with three replications. droug...

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