Gene conferring resistance to rust

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Advanced breeding strategies to mitigate the threat of black stem rust of wheat

The spread of stem rust race Ug99 and variants are threat to worldwide wheat production and efforts are being made to identify and incorporate resistance. A primary source of concern at present is that Ug99 (TTKSK and its variants TTKST and TTTSK) has overcome major sources of stem rust resistance genes e.g. Sr31, Sr38 and other important gene complexes which confer resistance to stem rust. Deployment of cultivars with broad spectrum rust resistance is the only environmentally viable option to combat these diseases.

20p trinhthamhodang1215 23-09-2020 11 1 Download

Inheritance of gene conferring resistance to rust (Melampsora lini) disease of linseed (Linum usitatissimum L.) in North West Himalayas

The genetics of resistance against rust disease caused by Melamspora lini in linseed or flax was studied in F1, F2, BC1 and BC2 generations of a susceptible variety T-397, crossed with a resistant variety Surbhi. On the basis of the segregating ratio obtained in F2 and backcross generations of the cross, T-397 × Surbhi i.e., (3:1) in F2 and (1:1) in BC1 revealed that single dominant gene is responsible for resistance against rust in these linseed genotypes under study.

3p caygaocaolon3 27-02-2020 18 0 Download