Rice,as a primary commodity,needs to be increased in production while facing the sustainability challenges of limited land,water resources,and climate change.The demand for rice productivity was not enough to rely onl...Rice,as a primary commodity,needs to be increased in production while facing the sustainability challenges of limited land,water resources,and climate change.The demand for rice productivity was not enough to rely only on the fertile fields’ability;it is necessary to consider the rainfed land potential.Cultivation in rainfed land involves biophysical pressure,lowproduction,and limited access to superior varieties.Participatory rice breeding aimed to identify farmers’trait preferences and develop acceptable lines.A bottom-up approach involved 203 farmers from four rainfed fields in Indonesia,i.e.,Semarang-Central Java,Kulon Progo-Yogyakarta,Tabanan-Bali,andGunungkidul-Yogyakarta.The experiment on February-June 2024 tested six lines(G2,G3,G4,G5,G9,and G10)and four varieties(Situ Bagendit,Gamagora7,Inpari IRNutri Zinc,and Inpago12 Agritan).Farmers’involvement in evaluating the suitability of genotypes involved using Multidimensional Scaling and Importance-Performance Analysis.Breeders added comprehensive analysis in the growing environment with Genotype Environment Interaction,and key attributes of leverage analysis from farmers must be considered.Genotype performance in the Multidimensional Scaling feasibility indicated that yield primary determinants were panicle type,disease resistance,leaf characteristics,and environmental resilience.Importance Performance Analysis verified that G3,G9,G2,and G4 had a preference at the farm level.Genotype Environment Interaction reveals that G3,G4,and G2 were ideal lines with high potential yields,suitability,and adaptability on rainfed land.Participatory rice breeding in rainfed land integrates farmers’assessments and breeders’observations to realize the most preferred genotypes according to the challenges for sustainable agriculture.展开更多
The breeding process involves developing techniques to create cultivars that thrive in the ever-changing global climate,allowing for early harvesting and high yield.This study aimed to screen rice genotypes with early...The breeding process involves developing techniques to create cultivars that thrive in the ever-changing global climate,allowing for early harvesting and high yield.This study aimed to screen rice genotypes with early harvest-ing and high yield to develop new-generation cultivars.The 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 2023.Ten genotypes were laid out using an Augmented Randomized Com-plete Block Design(ARCBD)with three rows and six columns.The observations were macro and micro-climate,soil quality,and morphological traits of rice.Data were analyzed using a Linear Mixed Model(LMM),correlation matrix,heatmap cluster,Principal Component Analysis(PCA),PCA-Biplot,Multiple Factor Analysis(MFA),and circular cluster.The 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 genotypes.Molecularfindings 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.展开更多
基金funded by the Research Organization for Agricultural and Food,the National Research and Innovation Agency(BRIN),and Universitas Gadjah Mada.
文摘Rice,as a primary commodity,needs to be increased in production while facing the sustainability challenges of limited land,water resources,and climate change.The demand for rice productivity was not enough to rely only on the fertile fields’ability;it is necessary to consider the rainfed land potential.Cultivation in rainfed land involves biophysical pressure,lowproduction,and limited access to superior varieties.Participatory rice breeding aimed to identify farmers’trait preferences and develop acceptable lines.A bottom-up approach involved 203 farmers from four rainfed fields in Indonesia,i.e.,Semarang-Central Java,Kulon Progo-Yogyakarta,Tabanan-Bali,andGunungkidul-Yogyakarta.The experiment on February-June 2024 tested six lines(G2,G3,G4,G5,G9,and G10)and four varieties(Situ Bagendit,Gamagora7,Inpari IRNutri Zinc,and Inpago12 Agritan).Farmers’involvement in evaluating the suitability of genotypes involved using Multidimensional Scaling and Importance-Performance Analysis.Breeders added comprehensive analysis in the growing environment with Genotype Environment Interaction,and key attributes of leverage analysis from farmers must be considered.Genotype performance in the Multidimensional Scaling feasibility indicated that yield primary determinants were panicle type,disease resistance,leaf characteristics,and environmental resilience.Importance Performance Analysis verified that G3,G9,G2,and G4 had a preference at the farm level.Genotype Environment Interaction reveals that G3,G4,and G2 were ideal lines with high potential yields,suitability,and adaptability on rainfed land.Participatory rice breeding in rainfed land integrates farmers’assessments and breeders’observations to realize the most preferred genotypes according to the challenges for sustainable agriculture.
基金The research for this article was fully funded by the National Research and Innovation Agency and the Indonesia Endowment Funds for Education(LPDP),Ministry of Finance through the Program Riset dan Inovasi untuk Indonesia Maju Gelombang 3 grant-in-aid scheme(No.12/II.7/HK/2023).
文摘The breeding process involves developing techniques to create cultivars that thrive in the ever-changing global climate,allowing for early harvesting and high yield.This study aimed to screen rice genotypes with early harvest-ing and high yield to develop new-generation cultivars.The 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 2023.Ten genotypes were laid out using an Augmented Randomized Com-plete Block Design(ARCBD)with three rows and six columns.The observations were macro and micro-climate,soil quality,and morphological traits of rice.Data were analyzed using a Linear Mixed Model(LMM),correlation matrix,heatmap cluster,Principal Component Analysis(PCA),PCA-Biplot,Multiple Factor Analysis(MFA),and circular cluster.The 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 genotypes.Molecularfindings 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.
