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3 result(s) search for keyword(s) 'Stability'
Genetic varieation, heritability and stability analysis of drought tolerant rice (Oryza sativa L.) varieties under rainfed lowland drought stress at reproductive stage in Nepal / Ram Baran Yadaw
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Genetic varieation, heritability and stability analysis of drought tolerant rice (Oryza sativa L.) varieties under rainfed lowland drought stress at reproductive stage in Nepal Material Type: printed text Authors: Ram Baran Yadaw ; Shalabh Dixit ; Kumar, Arvind ; Surya Kanta Ghimire ; Anitha Raman, Author ; Mishra, K.K., Author ; Shambhu Prasad Khatiwada, Author ; Resham Bahadur Thapa, Author Pagination: 97-106 p. Languages : English (eng) Keywords: Rice ; GxE interaction Stability Heritability Rainfed lowland drought stress GCV Genetic Advance(%) Abstract: In order to compute the genetic variability, genetic advance, GCV, PCV, path coefficient and
GxE interaction, 23 advance breeding lines of rice crop developed from International Rice
Research Institute Los Banos Philippines including two broad drought susceptible and two
moderately drought resistant checks were tested for days to flowering, grain yield, harvest
index and plant height at National Rice Research Program, Hardinath, Dhanusha and
Regional Agricultural Research Station Nepalgunj in wet season 2010 and 2011. A highly
significant variability of GxE interaction was observed in all traits; indicating breeders to
focus on selection of stable lines over the environments. The heritability of 0.61 was found in
grain yield under rainfed drought stress at reproductive stage which indicates yield per se
could be considered as direct selection criterion. Genotypes IR 79906-B-1 92-2-3, IR 81896-
B-B-74-B, IR 79478-67-3-3-2, IRRI123 and IR 80312-6-B-3-2-B were found highly stable
with minimum or close to unity of regression CJff(i) and regression coefficient values ofAi·Link for e-copy: http://elibrary.narc.gov.np/?r=871 Genetic varieation, heritability and stability analysis of drought tolerant rice (Oryza sativa L.) varieties under rainfed lowland drought stress at reproductive stage in Nepal [printed text] / Ram Baran Yadaw ; Shalabh Dixit ; Kumar, Arvind ; Surya Kanta Ghimire ; Anitha Raman, Author ; Mishra, K.K., Author ; Shambhu Prasad Khatiwada, Author ; Resham Bahadur Thapa, Author . - [s.d.] . - 97-106 p.
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Languages : English (eng)
Keywords: Rice ; GxE interaction Stability Heritability Rainfed lowland drought stress GCV Genetic Advance(%) Abstract: In order to compute the genetic variability, genetic advance, GCV, PCV, path coefficient and
GxE interaction, 23 advance breeding lines of rice crop developed from International Rice
Research Institute Los Banos Philippines including two broad drought susceptible and two
moderately drought resistant checks were tested for days to flowering, grain yield, harvest
index and plant height at National Rice Research Program, Hardinath, Dhanusha and
Regional Agricultural Research Station Nepalgunj in wet season 2010 and 2011. A highly
significant variability of GxE interaction was observed in all traits; indicating breeders to
focus on selection of stable lines over the environments. The heritability of 0.61 was found in
grain yield under rainfed drought stress at reproductive stage which indicates yield per se
could be considered as direct selection criterion. Genotypes IR 79906-B-1 92-2-3, IR 81896-
B-B-74-B, IR 79478-67-3-3-2, IRRI123 and IR 80312-6-B-3-2-B were found highly stable
with minimum or close to unity of regression CJff(i) and regression coefficient values ofAi·Link for e-copy: http://elibrary.narc.gov.np/?r=871 E-copies
http://nkcs.org.np/narc/dl/?r=871URL Genotype-Environment Interaction and Stability Analysis for Grain Yield of Mid-hill Rice Genotypes / Upreti, H.K. in Nepal Agriculture Research Journal, Vol. 8 (2007)
[article]
Title : Genotype-Environment Interaction and Stability Analysis for Grain Yield of Mid-hill Rice Genotypes Material Type: printed text Authors: Upreti, H.K., Author ; Bista, S., Author ; Sah, S.N., Author Publication Date: 2007 Article on page: 14-17 p Languages : English (eng) Keywords: G × E interaction, grain yield, mid-hill rice, stability Abstract: Genotype x Environment interaction limits the effectiveness of selection when selection is based only on mean yield. This G × E interaction was studied for grain yield in 7 genotypes of mid-hill rice in five different environments across the Nepal. Significant difference was observed among genotype (G), environment (E) and interaction (G × E) but could not identify the stable high yielding genotypes for diverse environments. Therefore, stability parameters were calculated and analyzed. On the basis of stability parameters, two genotypes, NR 10414, NR 10492 and NR 10515 were found to be most stable over different environments. NR 10353 was identified as suitable genotypes with high grain yield for favorable environment.
Link for e-copy: http://elibrary.narc.gov.np/?r=21
in Nepal Agriculture Research Journal > Vol. 8 (2007) . - 14-17 p[article] Genotype-Environment Interaction and Stability Analysis for Grain Yield of Mid-hill Rice Genotypes [printed text] / Upreti, H.K., Author ; Bista, S., Author ; Sah, S.N., Author . - 2007 . - 14-17 p.
Languages : English (eng)
in Nepal Agriculture Research Journal > Vol. 8 (2007) . - 14-17 p
Keywords: G × E interaction, grain yield, mid-hill rice, stability Abstract: Genotype x Environment interaction limits the effectiveness of selection when selection is based only on mean yield. This G × E interaction was studied for grain yield in 7 genotypes of mid-hill rice in five different environments across the Nepal. Significant difference was observed among genotype (G), environment (E) and interaction (G × E) but could not identify the stable high yielding genotypes for diverse environments. Therefore, stability parameters were calculated and analyzed. On the basis of stability parameters, two genotypes, NR 10414, NR 10492 and NR 10515 were found to be most stable over different environments. NR 10353 was identified as suitable genotypes with high grain yield for favorable environment.
Link for e-copy: http://elibrary.narc.gov.np/?r=21 Grain yield stability of Bread Wheat (Triticum aestivum L.) genotypes in different production environments of Nepal / N.R Gautam
in Proceedings of the 28th National Winter Crops Workshops held at Lumle, 9-10 March 2011 / Giri, Y.P.
Title : Grain yield stability of Bread Wheat (Triticum aestivum L.) genotypes in different production environments of Nepal Material Type: printed text Authors: N.R Gautam, Author ; MP Tripathi, Author ; DN Pokhrel, Author ; MR Bhatta, Author Pagination: 148-152 p. Languages : English (eng) Keywords: Environment, Genotype, Grain Yield, Yield Stability Abstract: This study was conducted by National Wheat Research Program (NWRP), Bhairahawa under three main production environments of wheat in Nepal i.e., timely sown irrigated (TSI), late sown irrigated (LSI) and timely sown rainfed (TSR) in collaboration with different NARC stations located across the country to identify suitable wheat genotypes based on both grain yield performance and yield attributing traits over the location and environments. The grain yield data of eight different bread wheat genotypes evaluated in Coordinated Varietal Trial (CVT) across eight locations during 2008-09 and 2009-10 were used in the analysis. Joint regression analysis model where trial mean grain yield was used as independent variables and genotype grain yield was used as dependent variables for determining stability parameters................
Link for e-copy: http://elibrary.narc.gov.np/?r=1834 Grain yield stability of Bread Wheat (Triticum aestivum L.) genotypes in different production environments of Nepal [printed text] / N.R Gautam, Author ; MP Tripathi, Author ; DN Pokhrel, Author ; MR Bhatta, Author . - [s.d.] . - 148-152 p.
in Proceedings of the 28th National Winter Crops Workshops held at Lumle, 9-10 March 2011 / Giri, Y.P.
Languages : English (eng)
Keywords: Environment, Genotype, Grain Yield, Yield Stability Abstract: This study was conducted by National Wheat Research Program (NWRP), Bhairahawa under three main production environments of wheat in Nepal i.e., timely sown irrigated (TSI), late sown irrigated (LSI) and timely sown rainfed (TSR) in collaboration with different NARC stations located across the country to identify suitable wheat genotypes based on both grain yield performance and yield attributing traits over the location and environments. The grain yield data of eight different bread wheat genotypes evaluated in Coordinated Varietal Trial (CVT) across eight locations during 2008-09 and 2009-10 were used in the analysis. Joint regression analysis model where trial mean grain yield was used as independent variables and genotype grain yield was used as dependent variables for determining stability parameters................
Link for e-copy: http://elibrary.narc.gov.np/?r=1834 E-copies
http://nkcs.org.np/narc/dl/?r=1834URL