Journals / Türk Tarım - Gıda Bilim ve Teknoloji dergisi / 2016 / Cilt: 4 - Sayı: 1

The Applications to Increase Drought Tolerance of Plants

Bitkilerin Kuraklığa Dayanıklılığını Artırmaya Yönelik Uygulamalar

Pages
48–57
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Besides, the farmers can use conservation tillage system in dry periods.

📌 3 Key Takeaways

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Objective & Hypothesis:Terminal drought is a major threat that adversely affects crop growth and metabolism, and limits the yield.
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Key Findings & Data:Besides, water stress causes the reduction of relative water content, the closure of stomata and decrease in photosynthesis and chlorophyll content.
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Conclusion & Impact:Besides, the farmers can use conservation tillage system in dry periods.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Terminal drought is a major threat that adversely affects crop growth and metabolism, and limits the yield. Water stress causes many morphological, physiological and biochemical changes in plants. Plant height, root length, leaf area, fresh and dry biomass are reduced under drought stress. Besides, water stress causes the reduction of relative water content, the closure of stomata and decrease in photosynthesis and chlorophyll content. Antioxidant enzymes such as glutathione reductase (GR), superoxide dismutase (SOD), peroxidase (POD), ascorbat peroxidase (ASC), glutatiton (GSH), catalase (CAT) enzyme activities, the indicator of oxidative stress malondialdehyde (MDA) and proline levels also changes in drought conditions. Nutrient uptake by plants is prevented or restricted before grain development stage during drought conditions. Therefore the application of plant nutrients followed by micronutrient remobilization within plant is great importance. Osmoprotectants (cytokinin, mannitol, abscisic acid, proline, glycine betaine, polyamine etc.) detoxify adverse effect of reactive oxygen species (ROS) and alleviate drought stress. Exogenous plant growth promoting rhizobacteria (PGPR) application encourage plant growth by colonizing the plant root and increase plants' resistance to water stress. Besides, the farmers can use conservation tillage system in dry periods.

Özet

Terminal kuraklık bitki gelişimini, metabolizmasını olumsuz etkileyen ve verimi sınırlayan en büyük tehdittir. Su stresi bitkilerde morfolojik, fizyolojik ve biyokimyasal birçok değişikliğe neden olmaktadır. Kuraklık stresi bitki boyu, kök uzunluğu, yaprak alanı, taze ve kuru biyokütleyi azaltmaktadır. Ayrıca su stresi nisbi nem içeriğinin azalmasına, stomaların kapanmasına, fotosentez ve klorofil içeriğinin azalmasına neden olmaktadır. Antioksidan enzimlerden glutatyon redüktaz (GR), süperoksit dismütaz (SOD), askorbat peroksidaz (ASC), glutatyon (GSH), katalaz (CAT) enzim aktiviteleri ile oksidatif stresin bir göstergesi malondialdehit (MDA) ve prolin seviyeleri de kurak koşullarda değişmektedir. Kurak koşullarda özellikle tane gelişim dönemi öncesi bitki besin elementi alımı gerilediği veya engellendiği için bitki besin elementi uygulaması ve beraberinde mikroelementlerin remobilizasyonu önem taşımaktadır. Osmotik koruyucular (sitokinin, mannitol, absisik asit, prolin, glisinbetain, poliamin vb.) reaktif oksijen türlerinin (ROS) olumsuz etkilerini ortadan kaldırmakta ve kuraklık stresini iyileştirmektedir. Dışarıdan bitki gelişimini teşvik eden rizobakterilerin (PGPR) uygulanması bitki kök sistemi ile kolonize olarak bitki büyümesini teşvik etmekte ve bitkilerin su stresine dayanıklılığını artırmaktadır. Ayrıca kurak dönemlerde koruyucu toprak işleme sistemi de çiftçiler tarafından kullanılabilir.

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Cite This Article

YAVAŞ, İ., AKGÜL, H. N., ÜNAY, A. (2016). The Applications to Increase Drought Tolerance of Plants. Türk Tarım - Gıda Bilim ve Teknoloji dergisi, Cilt: 4 - Sayı: 1, 48–57. https://ajindex.com/articles/331665

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References (10)

  1. Agboma PC, Peltonen-Sainio P, Hinkkanen R, Pehu E. 1997. Effect of foliar application of glycinebetaine on yield components of drought-stressed tobacco plants. Expl Agric., 33:345-352.
  2. Aghanejad M, Mahfoozi S, Sharghi Y. 2015. Effects of Late- Season Drought Stress on some Physiological Traits. Yield and Yield Components of Wheat Genotypes Biological Forum-An International Journal, 7(1):1426-1431.
  3. Akbarian A, Arzani A, Salehi M, Salehi M. 2011. Evaluation of triticale genotypes for terminal drought tolerance using physiological traits. Indian Journal of Agricultural Sciences. 81(12):1110-1115.
  4. Akıncı Ş, Lösel DM. 2012. Plant Water-Stress Response Mechanisms, Water Stress. Ismail Md. Mofizur Rahman (Ed.), Available from: http://www.intechopen.com/books /water-stress/plant-water-stress-response-mechanisms [Accessed: 11.11.2015]. Alaei Y. 2011. The Effect of Amino Acids on Leaf Chlorophyll Content in Bread Wheat Genotypes under Drought Stress Conditions. Middle-East Journal of Scientific Research, 10 (1): 99-101.
  5. Amiri M, Delkhosh B, Shirani Rad AH, Rashidi S. 2013. Effect of mycorrhiza fungi and rhizobium bacteria on agronomic traits in soybean (Glycine max L.), under water stress condition Annals of Biological Research, (2):327-33.
  6. Anjum, SA, Xie X, Wang L, Saleem MF, Man C, Lei W. 2011. African Journal of Agricultural Research, 6(9): 2026-2032. Anonim. 2015. Available from: http://www.aganytime.com /Pages/Article.aspx?name=Drought-Effects-on-Grain-and- Pod-Fill-in-Corn-and-Soybean& fields=article&article=158 [Accessed 05.06.2015].
  7. Aown M, Raza S, Saleem MF, Anjum SA, Khaliq T, Wahid MA. 2012. Foliar application of potassium under water deficit conditions improved the growth and yield of wheat (Triticum aestivum L.). The Journal of Animal & Plant Sciences, 22(2):431-437.
  8. Asghari R, Ebrahimzadeh H. 2006. Drought Stress Increases the Expression of Wheat Leaf Ribulose-1,5-Bisphosphate Carboxylase/Oxyenase Protein. Iranian Journal of Science & Technology, Transaction A. 30 (A1):1-7.
  9. Askari E, Ehsanzadeh P. 2015. Drought stress mitigation by foliar pplication of salicylic acid and their interactive effects on physiological characteristics of fennel (Foeniculum vulgare Mill.) genotypes. Acta Physiol Plant., 37:4. Auge RM, Stodola JW. 1990. An apparent increase in symplastic water contributes to greater turgor in mycorrhizal roots of droughted Rosa plants. New Phytol., 115: 285-295.
  10. Baranyiova I, Klem K, Kren J. 2014. Effect of exogenous application of growth regu