Development of bacterial blight resistance versions of basmati rice genotypes from Jammu, Northern Himalaya using marker-assisted selection

341-348Bacterial blight (BB) of rice caused by Xanthomonas oryzae pv. oryzae (Xoo) is a major constraint that negatively impacts rice production. Here, we explored developing potential BB resistance donors having basmati quality characteristics. The 20 BC1F1 cross combinations generated by randomly crossing four elite basmati cultivars with 10 bacterial blight resistant donor lines possessing resistant genes in different combinations were used for screening. Out of 20 BC1F1, one combination Basmati-370 x IRBB-55 was found to have basmati quality traits like intermediate amylose and high aroma content. Twenty two BC1F2 genotypes were selected from this cross combination for screening Xa21 and xa13 BB resistance genes as well as aromagene through marker-assisted selection (MAS). Five genotypes namely, Basmati-370 x IRBB-55-4, Basmati-370 x IRBB-55-5, Basmati-370 x IRBB-55-13, Basmati-370 x IRBB-55-17 and Basmati-370 x IRBB-55-18 carrying both Xa21 and xa13 along with fgr gene in homozygous conditions identified phenotypically to show complete resistance to BB along with intermediate amylose and high aroma. It is suggested that these genotypes can be effectively used as basmati donors

The Nutritional and Phytochemical Composition of the Indigenous Australian Pindan Walnut (Terminalia cunninghamii) Kernels

© 2017 Springer Science+Business Media, LLC, part of Springer Nature Nutritional composition of the kernels of two types of Pindan walnut (Terminalia cunninghamii), a native nut consumed traditionally by Australian Indigenous peoples, is reported for the first time. Results showed that Pindan walnut kernels contained high levels of fat, protein and ash, approximately 50, 30 and 5% fresh basis, respectively. The levels of minerals in the kernels were much higher than common walnuts and macadamia nuts, especially those of phosphorus, magnesium and zinc. The high amounts of polyphenols in the kernels provided strong hydrophilic antioxidant capacities, of up to 2004 mg Trolox equivalents/100 g fresh basis using the hydrophilic oxygen radical absorbance capacity assay. Both free polyphenol content and hydrophilic antioxidant capacities of the kernels were higher than those of macadamia nuts, although the lipophilic oxygen radical absorbance capacity was lower. These preliminary studies indicate high potential for wider use of the Pindan walnut as a novel, nutritious and health-promoting food

The Future of Rice Demand: Quality Beyond Productivity

Not AvailableIt is a book chapter on aromatic riceNot Availabl