نتایج جستجو برای: late drought

تعداد نتایج: 226034  

2015
Haitao Shi Yinhua Chen Yongqiang Qian Zhulong Chan

As a dehydrin belonging to group II late embryogenesis abundant protein (LEA) family, Arabidopsis Low Temperature-Induced 30 (LTI30)/XERO2 has been shown to be involved in plant freezing stress resistance. However, the other roles of AtLTI30 remain unknown. In this study, we found that the expression of AtLTI30 was largely induced by drought stress and abscisic acid (ABA) treatments. Thereafter...

2016
Isabelle Maréchaux Megan K. Bartlett Philippe Gaucher Lawren Sack Jérôme Chave

Amazonian tree communities have already been seriously impacted by extreme natural droughts, and intense droughts are predicted to increase in frequency. However, our current knowledge of Amazonian tree species’ responses to water stress remains limited, as plant trait databases include few drought tolerance traits, impeding the application and predictive power of models. Here we explored how l...

In order to investigate the effect of salicylic acid on photosynthetic pigments, enzyme activity and yield of durum wheat cultivars under drought stress, a greenhouse experiment was conducted as factorial based on complete randomized design with 3 replicates. Treatments included of drought stress in two levels of normal irrigation and drought stress at the beginning of the milking stage, and sa...

امام, یحیی, موری, سعید, کریم‌زاده سورشجانی، , هدایت اله ,

Abstract: Wheat grain yield is reduced by post-anthesis drought stress conditions in most wheat growing farmlands of Iran. To evaluate the effect of post-anthesis-withholding irrigation on yield, yield components and canopy temperature of wheat cultivars, a field experiment was conducted as split plot in a completely randomized block design with four replications at experimental farm of coll...

Journal: :Plants 2015
Kolby J Jardine Jeffrey Q Chambers Jennifer Holm Angela B Jardine Clarissa G Fontes Raquel F Zorzanelli Kimberly T Meyers Vinicius Fernadez de Souza Sabrina Garcia Bruno O Gimenez Luani R de O Piva Niro Higuchi Paulo Artaxo Scot Martin Antônio O Manzi

Prolonged drought stress combined with high leaf temperatures can induce programmed leaf senescence involving lipid peroxidation, and the loss of net carbon assimilation during early stages of tree mortality. Periodic droughts are known to induce widespread tree mortality in the Amazon rainforest, but little is known about the role of lipid peroxidation during drought-induced leaf senescence. I...

بی همتا, حمدرضا, سلیمانی, امان الله, معالی امیری, رضا, پیغمبری, سیدعلی,

     Drought is one of the major environmental limiting factors in the global agriculture. Exploiting of crop yield potential and increasing yield stability of them in drought and drought-prone regions can be guaranteed to feed the world’s growing population. For this purpose, in order to assess the late season drought tolerance genotypes and determining of tolerant them using stress tolerance ...

Despite the high potential of sesame production in the country, its yield and water use efficiency is low. Therefore, identifying genotypes with high grain yield, especially under drought stress conditions, is essential for developing this crop. For this purpose, field experiments were conducted to investigate the qualitative and quantitative response of 21 sesame genotypes to drought stress co...

2013
Emmanuel Okogbenin Tim L. Setter Morag Ferguson Rose Mutegi Hernan Ceballos Bunmi Olasanmi Martin Fregene

Cassava is an important crop in Africa, Asia, Latin America, and the Caribbean. Cassava can be produced adequately in drought conditions making it the ideal food security crop in marginal environments. Although cassava can tolerate drought stress, it can be genetically improved to enhance productivity in such environments. Drought adaptation studies in over three decades in cassava have identif...

2014
Haiyan Xiong Jinjie Li Pengli Liu Junzhi Duan Yan Zhao Xiao Guo Yang Li Hongliang Zhang Jauhar Ali Zichao Li

MYB-type transcription factors (TFs) play essential roles in plant growth, development and respond to environmental stresses. Role of MYB-related TFs of rice in drought stress tolerance is not well documented. Here, we report the isolation and characterization of a novel MYB-related TF, OsMYB48-1, of rice. Expression of OsMYB48-1 was strongly induced by polyethylene glycol (PEG), abscisic acid ...

Journal: :Plant science : an international journal of experimental plant biology 2016
Juan Chen Lei Fan Ya Du Weining Zhu Ziqin Tang Na Li Dapeng Zhang Linsheng Zhang

Drought stress is a major factor limiting wheat growth and productivity. Late embryogenesis abundant (LEA) proteins are tolerant to water-related stress. To reveal the regulatory mechanisms of LEA proteins under drought stress, we cloned a novel group 3 LEA gene, namely, TaDlea3, from wheat (Triticum aestivum L.) Shaanhe 6. Subcellular localization assay showed that TaDlea3 protein accumulated ...

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