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Pre-breeding in Rice Development: Phenotypic-Genotypic Evaluation Associated with High Yield and Early Harvesting Traits

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Phyton-International Journal of Experimental Botany 2024年第11期93卷 3073-3089页

作者： Alwa Widi Aisya Erlina Ambarwati supriyanta Taufan Alam Rizky Pasthika Kirana I Gusti Komang Dana Arsana Vina Eka Aristya Ardian Elonard Purba Taryono Department of Agronomy Faculty of AgricultureUniversitas Gadjah MadaYogyakarta55281Indonesia National Research and Innovation Agency Jakarta10340Indonesia

The breeding process involves developing techniques to create cultivars that thrive in the ever-changing global climate,allowing for early harvesting and high *** study aimed to screen rice genotypes with early harvest-ing and high yield to develop new-generation *** study was conducted in aﬁeld experiment at the Department of Agronomy,Faculty of Agriculture,Universitas Gadjah Mada,Special Region of Yogyakarta,Indo-nesia,from December 2022 to April *** genotypes were laid out using an Augmented Randomized Com-plete Block Design(ARCBD)with three rows and six *** observations were macro and micro-climate,soil quality,and morphological traits of *** were analyzed using a Linear Mixed Model(LMM),correlation matrix,heatmap cluster,Principal Component Analysis(PCA),PCA-Biplot,Multiple Factor Analysis(MFA),and circular *** results provided information that the rice genotypes with the early harvesting genotypes were Inbrida M70D(95.01 days),Trisakti(100.98 days),and SR Super(104.76 days).Furthermore,the rice genotypes with the highest yields were Gamagora 2(49.82 g clump^(-1)),Gamagora 4(46.61 g clump^(-1)),Gamagora 7(37.26 g clump^(-1)),and Gamagora 10(29.84 g clump^(-1)).The genetic clustering based on Simple Sequence Repeat markers linked to earlyﬂowering genes indicates that SR Super and Inbrida M70D show the most distinct char-acteristics compared to other ***ﬁndings corroborate the morphological analysis,indicating that Inbrida M70D and SR Super are early harvesting genotypes,therefore they can be used this group of geno-types as cross-breeding material to obtain genotypes with early harvesting and high-yielding traits.

关键词： Early-harvesting high-yielding microsatellite rice

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