Breeding for Drought Resistance in Rice Based on Whole ... Plant Breeding ... Breeding for Drought Resistance in Rice Based on Whole-plant Architecture . 6/18/2014 IPPN ... – Reallocate resources as required .

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<ul><li><p> </p><p>Dr. H. E. SHASHIDHAR Professor &amp; Univ. Head, Genetics &amp; Plant Breeding Department of Plant Biotechnology UAS, Bangalore </p><p>Breeding for Drought Resistance in Rice Based on Whole-plant </p><p>Architecture </p></li><li><p>6/18/2014 IPPN Presentaion </p></li><li><p>6/18/2014 IPPN Presentaion </p></li><li><p>6/18/2014 IPPN Presentaion </p></li><li><p>Whole-Plant Breeding Plant Breeding in totality </p><p> Give roots due credit as they Support &amp; Nourish Open up new soil profiles for future civilizations First line of defense against nematodes, bacteria, </p><p>fungi &amp; root grubs, etc. Roots control shoots Manifest Feed-Forward Response Reallocate resources as required </p></li><li><p>Whole Plant Architecture </p></li><li><p>10 cm </p></li><li><p>EBTC Biotech Mission 2012 12 </p></li><li><p>Diversity for whole plant architecture </p><p>Soya Bean </p><p>Horsegram </p><p>Peanut </p><p>Pigeon Pea </p><p>Bengal Gram </p><p>Rice </p><p>Sunflower </p><p>Maize </p><p>Ragi </p></li><li><p>Dehydrins </p><p>Root Morphology ABA Antheis Silking Interval </p><p>Stay Green </p><p>DREB 2 </p><p>Carbon Isotope Discrimination Ratio </p><p>Permanent Wilting Point </p><p>Cell Elongation </p><p>Leaf Drying </p><p>Water Use Efficiency </p><p>Tip Firing </p><p>Flowering Delay </p><p>Leaf Water Potential </p><p>Stomatal Conductance </p><p>Weed Competitiveness </p><p>Heat Shock Proteins </p><p>Cell Wall Proteins </p><p>Seedling Vigor </p><p>Deep Root </p><p>Reactive Oxygen Scavenging Leaf Rolling </p><p>Stomatal Regulation </p><p>Earliness </p><p>Electrolyte Leakage </p><p>Osmotic Adjustment </p><p>Grain Yield </p><p>Nitrogen Use Efficiency </p><p>O18 C13 Epicuticular Wax </p></li><li><p>What to Select for? </p><p>ROOTS </p><p>GRAIN YIELD </p><p>BIOMASS </p><p>Water Budgeting to represent Target Population of Habitats </p></li><li><p>Selection: When/Where/Who </p><p> Not to early in the segregating generations Reject first and select later Simultaneously select for traits in field and </p><p>green house Involve farmers in selection Drought-ready genotype is the target </p></li><li><p>Introduction to ARB 6 Aerobic Rice </p><p> Manifests a high degree of drought resistance Bred under direct seeded and aerobic conditions </p><p> Has deep root system and fast growth </p><p> Extracts water from deeper layers when subjected to stress </p><p> Medium duration and MS grain type </p><p> No penalty on yield under well-watered condition </p></li><li><p>Aerobic rice : Anagha (BI-33) </p></li><li><p>Hybrid Aerobic Rice: Network Project Proposal Borrowed from Dr. Dave Mackill </p><p>IRRI, Philippines </p></li><li><p>Hybrid Aerobic Rice: Network Project Proposal </p><p>Borrowed from Dr. Arvind Kumar IRRI, Philippines </p></li><li><p>22 Dept. of Biotechnology 24/12/2011 </p></li><li><p>Rate of water uptake (g/day)* g/</p><p>day </p><p>23 Dept. of Biotechnology 24/12/2011 </p></li><li><p> Crop Canopy Air temperature Difference (CCATD) of many Rice Varieties </p><p> Confirms BI-33 is drought tolerant variety Pokkali too can survive under drought conditions </p><p> VARIETIES OF INTEREST </p><p>6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>SUBERIN DEPOSITION </p><p>Ex Exodermis En - Endodermis </p><p>6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>XYLEM SAP TRANSLOCATION </p><p>Schematic Representation of Methodology </p><p>Shoot cut and covered with paper </p><p>6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>02468</p><p>101214161820</p><p>Pokkali BI-33 IR-20 Jaya</p><p>Pass</p><p>age </p><p>cell </p><p>No.</p><p>Drought </p><p>Ex.</p><p>En.</p><p>02468</p><p>101214161820</p><p>Pokkali BI-33 IR-20 Jaya</p><p>Pass</p><p>age </p><p>cell </p><p>No.</p><p>Salt Ex.</p><p>En.</p><p>NUMBER OF PASSAGE CELLS </p><p>Ex Exodermis En - Endodermis </p><p>6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>- </p><p>JAYA CONTROL </p><p>IR-20 </p><p>POKKALI BI-33 </p><p>- </p><p>- - - </p><p>- </p><p>- </p><p>- </p><p>- </p><p>- - - </p><p>6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>BI-33 POKKALI </p><p>IR-20 JAYA DROUGHT </p><p>- </p><p>- </p><p>- - </p><p>- </p><p>- </p><p>- </p><p>- </p><p>- </p><p>- - </p><p>- </p><p>- </p><p>- </p><p>- - </p><p>- - </p><p>- </p><p>- </p><p>- - </p><p>- </p><p>- 6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>6/18/2014 5:30:43 PM IPPN Presentaion </p></li><li><p>Foliennummer 1Foliennummer 2Foliennummer 3Foliennummer 4Foliennummer 5Foliennummer 6Whole-Plant BreedingFoliennummer 8Foliennummer 9Foliennummer 10Foliennummer 11Foliennummer 12Foliennummer 13DehydrinsWhat to Select for?Selection: When/Where/WhoFoliennummer 17Foliennummer 18Foliennummer 19Foliennummer 20Foliennummer 21Foliennummer 22Foliennummer 23Foliennummer 24Foliennummer 25Foliennummer 26Foliennummer 27Foliennummer 28Foliennummer 29Foliennummer 30Foliennummer 31Foliennummer 32Foliennummer 33</p></li></ul>