Journal ID : AMA-01-04-2022-11255
[This article belongs to Volume - 53, Issue - 04]
Total View : 429

Title : Characterization of Basmati Germplasm for Bacterial Leaf Blight Resistance and Grain Quality traits under North-Western Himalayan region of J&K

Abstract :

Ninety three basmati germplasm lines were evaluated during Kharif 2018 so as to identify lines with good quality traits and resistance to Bacterial blight. Data was recorded on various yield and its attributing traits while, seeds of five selected plants of each line were dehulled after harvesting for evaluation of the grain quality traits. Previously reported molecular markers RG136 and Pta248, closely linked to the BB resistance genes, xa13 and Xa21 were employed to confirm the presence of resistance genes. Simultaneously, all the lines were screened for bacterial blight both under natural field and green house conditions using leaf clipping technique and scoring was performed following Standard Evaluation System for Rice. Analysis of variance revealed significant variation for all the traits, while 58 germplasm lines were found to have Xa21 gene with band size of 1300 bp and 57 germplasm lines were found to possess xa13 gene with band size of 800 bp. The germplasm line 1, 2, 3, 6, 9, 10, 13, 15, 17, 19, 20, 21, 23, 27, 30, 32, 33, 34, 37, 38, 40, 43, 44, 47, 48, 49, 50, 51, 52, 54, 56, 57, 58, 60, 62, 66, 71, 72, 75, 77, 80, 83, 85, 89, 90, and 92 possessed two resistance genes i.e. Xa21 and xa13. The germplasm line 5, 8, 11, 18, 24, 26, 29, 35, 45, 55, 59, 61, 64, 70, 73, 76, 78, 79, 81, 82, 84, 86, 87, Ranbir basmati, Jammu Basmati 129, Pusa Basmati 1121, Basmati 564, Saanwal basmati and Basmati 370 lack either of the resistance genes i.e. Xa21 or xa13. When the resistance of the germplasm lines was considered along with the yield performance, GP2, GP43 and GP71 proved to be the superior ones interms of resistance to the disease as well as yielding ability. GP2 and GP71 also possessed good basmati quality parameters and can be used as varieties after testing in yield trails.GP1, GP2, GP3, GP6, GP9, GP10, GP13, GP19, GP21, GP23, GP37, GP43, GP47, GP48, GP50, GP51, GP52, GP56, GP58, GP62 and GP71 can serve as potential donor for the transfer of bacterial blight resistance genes into elite basmati varieties.

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