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2 result(s) search for keyword(s) 'purity'
Agro-morphological characterization fo promising lines of rice for mid-hill conditions of Nepal / Jwala Bajracharya
in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.
Title : Agro-morphological characterization fo promising lines of rice for mid-hill conditions of Nepal Material Type: printed text Authors: Jwala Bajracharya ; Pratima Pandey, Author ; Dev Bahadur Gurung, Author Pagination: 142-148 p. Languages : English (eng) Keywords: Oryza sativa L. ; genetic variability descriptors purity Abstract: Four promising varieties ofrice (Oryza sativa L.) included in FFT and CVT for bill condition
of Nepal were studied for their agro-morphological characterization and preparation of
descriptors using qualitative and quantitative agro -morphological traits. The experiment was
conducted in Khumaltar, Lalitpur, Nepal , us ing a randomized block design with three
replicates in agricultural season in 2010/ 11 and 20 11 / 12. Genetic vari ation was observed
among the qualitative and quantitative characters evaluated and sign ificant variations at the
least (p < 0.05) were observed for 15 of the 20 analysed quantitative traits. Genetic variance
among the lines was observed hi gher than the envirorunental variance, which ensured the
predominance of the genetic components in the differences observed among the rice
promising lines. Leaf measurement and its orientation, culm strength, panicle exertion length,
panicle type, panicle sterility and biomass related traits were found important distinguishing
traits of these rice varieties. Based on the observed variab ility the descriptors of these
promising varieties were prepared, which is hoped to be of great importance for breeding
programs and maintaining the genetic purityLink for e-copy: http://elibrary.narc.gov.np/?r=879 Agro-morphological characterization fo promising lines of rice for mid-hill conditions of Nepal [printed text] / Jwala Bajracharya ; Pratima Pandey, Author ; Dev Bahadur Gurung, Author . - [s.d.] . - 142-148 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: Oryza sativa L. ; genetic variability descriptors purity Abstract: Four promising varieties ofrice (Oryza sativa L.) included in FFT and CVT for bill condition
of Nepal were studied for their agro-morphological characterization and preparation of
descriptors using qualitative and quantitative agro -morphological traits. The experiment was
conducted in Khumaltar, Lalitpur, Nepal , us ing a randomized block design with three
replicates in agricultural season in 2010/ 11 and 20 11 / 12. Genetic vari ation was observed
among the qualitative and quantitative characters evaluated and sign ificant variations at the
least (p < 0.05) were observed for 15 of the 20 analysed quantitative traits. Genetic variance
among the lines was observed hi gher than the envirorunental variance, which ensured the
predominance of the genetic components in the differences observed among the rice
promising lines. Leaf measurement and its orientation, culm strength, panicle exertion length,
panicle type, panicle sterility and biomass related traits were found important distinguishing
traits of these rice varieties. Based on the observed variab ility the descriptors of these
promising varieties were prepared, which is hoped to be of great importance for breeding
programs and maintaining the genetic purityLink for e-copy: http://elibrary.narc.gov.np/?r=879 E-copies
http://nkcs.org.np/narc/dl/?r=879URL Agro-morphological characterization of promising rice (Oryza Sativa L.) Genotypes for hills of Nepal / R.K Basnet
in Summer crops research in Nepal: Proceedings of the 25th Summer Crops Workshop held at Kathmandu 21-23 June 2007 / Adhikari, N.P.
Title : Agro-morphological characterization of promising rice (Oryza Sativa L.) Genotypes for hills of Nepal Material Type: printed text Authors: R.K Basnet, Editor ; Bajracharya, J., Editor ; Upreti, H.K., Author Publisher: Hardinath, Janakpur : National Rice Research Programme Publication Date: 2010 Pagination: 93-101 p. Keywords: Rice ; quantitative and qualitative traits genetic purity promising genotypes agro-morphological characterization Abstract: A study on agro-morphological characterization was carried out to identify the key traits distinguishing the promising genotypes
developed by Agriculture Botany Division and to maintain the quality of seed with high genetic purity in laboratory and field in
2005 and 2006 rice season in Khumaltar. Four promising rice genotypes for mid- and high-hill conditions were agromorphologically
characterized along with two local varieties: Patle and Gudgud, and two standard checks of modern varieties:
Khumal-4 and Khumal-11. Altogether 14 different quantitative and 20 qualitative characters were observed at respective growth
stages of the rice plant following the ISTA Rules (2003) and standard rice descriptors (IRRI, 1980). A significant variability was
found for most quantitative traits (1.0 to 58.9% of CV) with two common .traits: two-clefted ligule and droopy panicle axis across the
genotypes under study. Variability was also observed in flag leaf angle with horizontal type in NR10492-7-22, Patle, erect in
NR10491-57-2-l, Khumal-11 and NR10515-69-1, and intermediate in rest of the genotypes; culm angle with intermediate and/or
erect type in most the genotypes and open in Patle. Likewise, strong to intermediate culm strength was found in six genotypes and
weak in Khumal-4 and Patle. Intermediate type of panicle was found in only two locallandraces with high sterility in Gudgud and
partial sterility in Patlc:: Thus, these promising genotypes were different from each other and can be easily identified based on these
qualitative and quantitative traits.Link for e-copy: http://elibrary.narc.gov.np/?r=1006 Agro-morphological characterization of promising rice (Oryza Sativa L.) Genotypes for hills of Nepal [printed text] / R.K Basnet, Editor ; Bajracharya, J., Editor ; Upreti, H.K., Author . - Hardinath, Janakpur : National Rice Research Programme, 2010 . - 93-101 p.
in Summer crops research in Nepal: Proceedings of the 25th Summer Crops Workshop held at Kathmandu 21-23 June 2007 / Adhikari, N.P.
Keywords: Rice ; quantitative and qualitative traits genetic purity promising genotypes agro-morphological characterization Abstract: A study on agro-morphological characterization was carried out to identify the key traits distinguishing the promising genotypes
developed by Agriculture Botany Division and to maintain the quality of seed with high genetic purity in laboratory and field in
2005 and 2006 rice season in Khumaltar. Four promising rice genotypes for mid- and high-hill conditions were agromorphologically
characterized along with two local varieties: Patle and Gudgud, and two standard checks of modern varieties:
Khumal-4 and Khumal-11. Altogether 14 different quantitative and 20 qualitative characters were observed at respective growth
stages of the rice plant following the ISTA Rules (2003) and standard rice descriptors (IRRI, 1980). A significant variability was
found for most quantitative traits (1.0 to 58.9% of CV) with two common .traits: two-clefted ligule and droopy panicle axis across the
genotypes under study. Variability was also observed in flag leaf angle with horizontal type in NR10492-7-22, Patle, erect in
NR10491-57-2-l, Khumal-11 and NR10515-69-1, and intermediate in rest of the genotypes; culm angle with intermediate and/or
erect type in most the genotypes and open in Patle. Likewise, strong to intermediate culm strength was found in six genotypes and
weak in Khumal-4 and Patle. Intermediate type of panicle was found in only two locallandraces with high sterility in Gudgud and
partial sterility in Patlc:: Thus, these promising genotypes were different from each other and can be easily identified based on these
qualitative and quantitative traits.Link for e-copy: http://elibrary.narc.gov.np/?r=1006 E-copies
http://nkcs.org.np/narc/dl/?r=1006URL