Drought Resistance Evaluation of Diverse Wheat Germplasm

Slides:



Advertisements
Similar presentations
New Developments in Tall Fescues and Use Strategies.
Advertisements

Association Mapping as a Breeding Strategy
SURVEY FOR RUSSIAN WHEAT APHID BIOTYPES IN COLORADO Terri Randolph, Scott Merrill and Frank Peairs Department of Bioagricultural Sciences and Pest Management.
Towards the selection of phosphorus efficient rice varieties Lalith Suriyagoda 1,2, Vishna Weerarathne 1, Dinarathne Sirisena 3, Matthias Wissuwa 4 1 Faculty.
Roots, Shoots & Grain Yield in Rice, Maize & Sorghum H E Shashidhar, Associates and Students Department of Plant Biotechnology College of Agriculture,
INTRODUCTION Figure 1: Seedling germination success by planting technique plus rainfall amount and date at the Poolesville location during fall BC.
Learning Target: Plants have specific needs to live.
Represented by - Komal Purohit B.Sc. Biotechnology II year EVALUATION IN PLANT UNDER SODIUM CHLORIDE STRESS
Hulless barley (Hordeum vulgare L.) resistance to pre-harvest sprouting: diversity and development of method for testing of breeding material L.Legzdiņa,
Grassland Biomes Chapter 8.
Phenotypic Structure of Grain Size and Shape Variation in M5 mutant lines of spring wheat Kenzhebayeva Saule, Kazakh National University named after al-Farabi,
Law & Policy of Relevance to the Management of Plant Genetic Resources Rationale for the Treaty Session 1: Presentation 1 - Part 1 The International.
Module X: Soil Moisture Relationships and Irrigation Lesson 2: Irrigation in Chili Pepper Cultivation After completing this lesson, you have learned to.
Mohammad Abd Elgawad Emam Assistant Lecturer, Agronomy Department,Faculty Of Agriculture.
Structures of Life Growing Plants
Crop adaptation to future climates: Climate ready wheat Jairo A Palta CSIRO - Principal Research Scientist – Adjunct Research Professor, UWA 21 Nov 2014.
Acknowledgements This study was performed with financial support of EEA grant EEZ08AP-27 and European Social Fund co-financed project 2009/0218/1DP/ /09/APIA/VIAA/099.
Acknowledgements This study was performed with financial support of European Social Fund co-financed project 2009/0218/1DP/ /09/APIA/VIAA/099.
High Throughput Phenotypic Profiling of Root Anatomical Traits in Maize Amy Burton, Michael Williams, Jonathan Lynch, Kathleen Brown Department of Horticulture,
After successful completion of this Lesson, you have learned to answer: 1.Why sorghum yields are often low when grown under rainfed conditions? 2.How irrigation.
CLIMATE EFFECTS IAFNR Plant and Soil Sciences Module.
MOLECULAR MAPPING OF LEAF CUTICULAR WAXES IN WHEAT S. MONDAL, R.E. MASON, F. BEECHER AND D.B.HAYS TEXAS A& M UNIVERSITY, DEPT. OF SOIL & CROP SCIENCES,
Barley Research in TIAR Meixue Zhou. Barley Research in TIAR s Breeding –Long season and high rainfall areas - Franklin –Spring sown barley – Vertess.
Nursery Management and Seedling Production
NextEnd IRRIGATION SCHEDULING AND TECHNIQUES IN POTATO.
Effect of Preplant/Early Irrigation, Nitrogen and Population Rate on Winter Wheat Grain Yield Plant and Soil Sciences Department, Oklahoma State University,
Root Phenotyping for Field Management of crops- dryland crops V. Maruthi Principal Scientist (Agronomy) Central Research Institute for Dryland Agriculture.
THE INHERITANCE OF PLANT HEIGHT IN HEXAPLOID WHEAT (Triticum aestivum L.) Nataša LJUBIČIĆ 1*, Sofija PETROVIĆ 1, Miodrag DIMITRIJEVIĆ 1, Nikola HRISTOV.
N, P, and K Uptake in Bread Wheat ‘Pavon 76’ and Its 1RS Translocation Lines J.Giles Waines, Bahman Ehdaie, Toan Khuong, and Andrew P. Layne Department.
Plant Reproduction/Propagation
Navtej S. Bains, Punjab Agricultural University, Ludhiana
E. M. Eid, K. H. Shaltout, Y. M. Al-Sodany & Kai Jensen
Moukoumbi, Y. D1. , R. Yunus2, N. Yao3, M. Gedil1, L. Omoigui1 and O
Relative importance of genotypic richness vs. phenotypic plasticity
PHENOTYPING FOR ADAPTATION TO DROUGHT AND LOW-PHOSPHORUS SOILS IN COWPEA (VIGNA UNGUICULATA (L.) WALP.) Nouhoun Belko1, Ousmane Boukar1, Christian.
The Basis of ABA phenotypes in Arabidopsis det1 mutants
Local Landraces of Rice from Sri Lanka :
Figure 5. Do not be afraid to leave plenty of white space around your figures. If you use someone else’s figure, always acknowledge the source. Figures.
Mutation-induced variability for improved yield and rust resistance in wheat in hot irrigated environments Abdelbagi M. Ali1, 2, Izzat S.A. Tahir2, Abdalla.
How Much Water Will I Need
DR. PAUL NJIRUH NTHAKANIO FUNDED / COLLABORATORS
Breeding cotton for a variable rainfall environment
Impacts of early maturing chickpea varieties in Myanmar
Orobanche resistance in faba bean and lentil
Conclusions and future work
R. Hajiboland1), B.Singh2) and V. Römheld2)
Abiotic Factors Noadswood Science, 2016.
EFFECTS OF SEED STERILIZATION TREATMENTS ON SEEDLING VIGOR AND IN VITRO CALLUS INDUCTION OF FOUR MAIZE INBRED LINES Anita Dutta1, Juan Carlos Martinez2.
Natural light V.S Artificial light
Proportion of intermediate diameter roots
CLIMATE CHANGE – FUNDAMENTALS
Enhancing soybean for resistance to Sclerotinia stem rot
Increasing Genetic Gains in Wheat through Physiological Genetics and Breeding Sivakumar Sukumaran1, Matthew Reynolds1, Jose Crossa1, Marta Lopes2, Diego.
Natural light vs. artificial light
Phenotypic variability of drought-avoidance shoot and root phenes and
INTRODUCTION Radio-sensitivity of selected cowpea (Vigna unguiculata) genotypes to varying gamma irradiation doses L. Horn1,2 and H. Shimelis2 1. Directorate.
In Vitro Maintenance of Bermudagrass Germplasm
PRINCIPLES OF CROP PRODUCTION ABT-320 (3 CREDIT HOURS)
E.V. Lukina, K.W. Freeman,K.J. Wynn, W.E. Thomason, G.V. Johnson,
Heredity & the Environment
Part I: Effects of Soil vs. Agar on Germination
Genetics Lab.
ANNUAL REPORT Richard Pratt Dept. of Horticulture and Crop Science
University of Wisconsin, Madison
V. Kyaligonza, R. Kawuki, M. Ferguson, Y. Baguma, T. Kaweesi , J
Translocation and Transpiration
Relationship Between Root Biomass and Water – Nitrogen Uptake and Grain Yield in Bread Wheat ‘Pavon 76’ and Its 1RS Translocation Lines J.G. Waines1,
Ascend Idea Starters.
Statistics in Biology: Mean & Standard Deviation
Presentation transcript:

Drought Resistance Evaluation of Diverse Wheat Germplasm Habtamu Ayalew1, 2, Hui Liu 1, Guijun Yan1 1 School of Plant Biology, Faculty of Science and The UWA Institute of Agriculture, The University of Western Australia, Crawley, WA 6009, Australia, 2 Department of Horticulture, College of Agriculture and Natural Resources, Debre Markos University, P. O. Box 269 Debre Markos, Ethiopia Background Result Drought is one of the major abiotic stresses limiting wheat production worldwide. It can happen at any stage of crop development - varying in durations and intensities. Breeding for drought resistance needs to consider evaluating germplasm at various growth stages and for both above and below ground performances. Deep root system, fine roots, root length density, leaf rolling, leaf waxy layer, and osmotic adjustment are among the most frequently studied traits that enable plants to avoid dehydration. Root traits can be screened at early stage to identify useful germplasm for drought resistance improvement. The major objectives of this research were (1) to develop a screening technique for easy and efficient root phenotyping (2) to identify contrasting genotypes for genetic studies of root length and (3) to use deep rooting genotypes for drought resistance breeding. Highly significant differences (P<0.001) were observed for root length both under stress and non-stress conditions. Osmotic stress caused an average reduction of 54% on root length (Fig 1b). There was also a significant variation based on the various ploidy levels (Fig 2b). The best control variety for drought resistance was significantly (p<0.05) outperformed by four new entries namely Colotana 296-52, Compare, Santa Elena, and Tammarin Rock . Figure 2. Genotype distribution (a) and , relative reduction in root length among different ploidy levels (b) under stress and non-stress conditions. The domesticated and high ploidy forms showed longer roots under stress Genotypes from the respective continents of origin showed significant differences under stress condition but not under normal condition (Fig 3). Figure 3. The relative reduction in root length among genotypes from different continents of origin under stress and non-stress conditions. a) b) Materials and Methods A total of 838 wheat genotypes were evaluated in a constant temperature room in a customized hydroponic system (Fig 1a). The experiment was setup in an augmented complete block design with seven blocks (planting time) and six released varieties, Drysdale, Gladius, Young, Wyalkatchem, Guardian and Mace were used as checks (controls). Figure 1. The hydroponic system used for screening non-stressed (left) and stressed (right) wheat plants in figures (a) and (b). Seeds were first germinated in Petri dishes lined with filter paper and seedlings were transferred to the hydroponic system after 48 hours of germination. Plants were then grown in water for the first seven days followed by either in half strength Hoagland’s solution alone (control) or half strength Hoagland’s solution and PEG6000 (-0.82 MPa osmotic stress). The growing condition was adjusted as follows: pH of the solution -5.5 - 5.7 Relative humidity- 65 - 70% Temperature- 25/22oC day/night Light intensity of 300 µmol.m-2s-1 (using cool florescent lamps ) The solution was being constantly aerated using an electric air bubbler. Data were collected from 14 days old seedlings. Conclusion a) b) Root length was the main focus of this study keeping in mind a situation with an initial rainfall enough for germination followed by a dry spell before the actual rainy season resumes. Results from this study showed that wheat collections tested did vary significantly (p<0.01) for root length under -0.82 MPa osmotic stress which is half way to permanent wilting (Fig 2a). The high genetic variability for seedling water stress resistance can be used for future breeding activities. The hydroponic system was found to be a handy method for root phenotyping of a large number of genotypes. Crossing among the most contrasting genotypes was made to analyse the inheritance of root length under water stress and the resulting populations are being advanced to RILs for QTL mapping. Acknowledgements The Australian Development Scholarship funded the study of the first author. The Australian Winter Cereals Collection provided us the genotypes.