Penilaian Prestasi Hasil dan Komponen Hasil Varieti Padi Terpilih di Seberang Perai

Saidon, Shamsul Amri; Yusob, Shajarutulwardah Mohd.; Jack, Allicia; Masarrudin, Mohd. Fitri; Hussain, Zainudin Pmd; Haron, Ismail Che; Omar, Othman; Shamsudin, Norlee

doi:10.11113/jt.v70.3544

Cited by 1 publication

(1 citation statement)

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“…This Malaysian high-yielding variety has been widely employed by local farmers since 2001, with a grain yield of 42.4 g per plant [17]. Moreover, compared to the most current high-yielding rice variety recently issued by MARDI, MR284, the advanced rice lines displayed more total spikelets per panicle (154 spikelets per panicle) [18]. Advanced rice lines matched Liangyoupeijiu, a hybrid rice produced in China in 2000 with a maximum grain output of 12.11 t/ha, in terms of plant height, panicle length, total spikelets per panicle, and seed-setting rate [19].…”

Section: Agronomic Performance For the Selected Backcross Linesmentioning

confidence: 99%

Backcrossing with Marker Assistance to Introduce Broad-Spectrum Bacterial Leaf Blight Resistance in the Malaysian Elite Variety MR297

et al. 2023

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A significant part of marker-assisted backcross breeding (MABB) is recurrent parent genome recovery (RPGR). The purpose of this study was to introduce MABB-mediated resistance genes against numerous bacterial leaf blight (BLB) pathogens. Here, we examine the introgression of four Xoo resistance genes to the high-yielding Malaysian MR297 lineage Xa21, xa13, xa5, and Xa4 from the IRBB60 lineage. To accomplish both foreground and background selection, we employed polymorphic functional linked markers to target genes and simple sequence repeat (SSR) markers. We used 83 of the 475 authorized polymorphic microsatellite markers to determine the proportion of RPGR in the chosen lines. According to the data, the RPGR at BC1F1, BC2F1, and BC2F2 are 81.94, 92.30, and 95.04%, respectively. Incorporating the four BLB resistance genes into the newly created lines would result in long-lasting and comprehensive protection against BLB. Therefore, a resistant gene may be introduced into a population more quickly with MABB than through conventional breeding. All ten lines tested showed a significant level of resistance to BLB, with three lines displaying very high levels of resistance. Consequently, it was recommended that new lines should be used to produce commercially viable rice varieties.

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Section: Agronomic Performance For the Selected Backcross Linesmentioning

confidence: 99%