12 result(s) search for keyword(s) 'traits'    

Genetic and Non-Genetic Factors Affecting Reproductive Traits of Pakhribas Pig in Nepal / Shriram P. Neupane in Nepal Agriculture Research Journal, Vol. 8 (2007)  

Public ISBD [article]  inNepal Agriculture Research Journal > Vol. 8 (2007) . - 77-81 p Title : Genetic and Non-Genetic Factors Affecting Reproductive Traits of Pakhribas Pig in Nepal Material Type: printed text Authors: Shriram P. Neupane, Author Publication Date: 2007 Article on page: 77-81 p Languages : English (eng) Keywords: Genetic  and  non-genetic  parameters,  hills  of  Nepal,  Pakhribaspig,  reproductive  traits Abstract: Pakhribas pig is a black colour pig and is highly preferred by the people in the Eastern hills of Nepal. This breed was developed in Nepal by three-way crossing of exotic breeds (Saddle back, Fayuen and Tamworth) at Agricultural Research Station (ARS), Pakhribas, the then Pakhribas Agricultural Centre (PAC). The data of 348 pigs, born over a period of fifteen years (1990 to 2004) were used to study the effect of non-genetic factors on reproductive traits and estimate their genetic parameters. The findings revealed that the overall gestation length and farrowing intervals were 113.7 ± 0.12 days and 182.5 ± 2.2 days, respectively. Season of birth and parity of dams were not important sources of variation for reproductive traits, where as year affected these traits significantly. Heritability estimates of gestation length was low (0.02 ± 0.094), but heritability for farrowing interval was moderate (0.14 ± 0.147) suggesting selection based on farrowing interval would bring the improvement in the trait. Link for e-copy: http://elibrary.narc.gov.np/?r=31 [article] Genetic and Non-Genetic Factors Affecting Reproductive Traits of Pakhribas Pig in Nepal [printed text] / Shriram P. Neupane, Author . - 2007 . - 77-81 p. Languages : English (eng) in Nepal Agriculture Research Journal > Vol. 8 (2007) . - 77-81 p Keywords: Genetic  and  non-genetic  parameters,  hills  of  Nepal,  Pakhribaspig,  reproductive  traits Abstract: Pakhribas pig is a black colour pig and is highly preferred by the people in the Eastern hills of Nepal. This breed was developed in Nepal by three-way crossing of exotic breeds (Saddle back, Fayuen and Tamworth) at Agricultural Research Station (ARS), Pakhribas, the then Pakhribas Agricultural Centre (PAC). The data of 348 pigs, born over a period of fifteen years (1990 to 2004) were used to study the effect of non-genetic factors on reproductive traits and estimate their genetic parameters. The findings revealed that the overall gestation length and farrowing intervals were 113.7 ± 0.12 days and 182.5 ± 2.2 days, respectively. Season of birth and parity of dams were not important sources of variation for reproductive traits, where as year affected these traits significantly. Heritability estimates of gestation length was low (0.02 ± 0.094), but heritability for farrowing interval was moderate (0.14 ± 0.147) suggesting selection based on farrowing interval would bring the improvement in the trait. Link for e-copy: http://elibrary.narc.gov.np/?r=31

Agro-morphological characterization of Nepalese Rice (Oryza sativa) L. Landraces / Krishna Hari Ghimire    

Public ISBD 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 of Nepalese Rice (Oryza sativa) L. Landraces Material Type: printed text Authors: Krishna Hari Ghimire ; Mukunda Bhattarai ; Bal Krishna Joshi ; Madan Raj Bhatta, Author Pagination: 36-42 p. Languages : English (eng) Keywords: rice  ;  landrace  accession  diversity  traits Abstract: Nepal is considered one of the centers of diversity of Rice (Oryza sativa L.). A total of 1137 accessions of rice were characterized during 2010, 2011 and 2012 at National Agriculhire Genetic Resources Centre (NAGRC), Khumaltar, Lalitpur, Nepal. Eight quantitative and 19 qualitative traits were recorded using rice descriptors Shannon-Weaver diversity indices (H') was 0.92, 0.90, 0.90, 0.89, 0.86, 0.90, 0.88, 0.88, 0.67, 0.67 , 0.54, 0.69, 0.57, 0.55 , 0.74, 0.84, 0.85, 0.80 and 0.66 for days to head ing and maturity, plant height, panicle length, ligule length, leaf length and width, grain length a11d width, blade pubescence, basal leaf sheath color, flag leaf angle, culm angle, internode color, panicle exertion, shattering, awn color, apiculus color and spikelet sterility respectively that revealed there is a great diversity in Nepalese rice landraces. To exp lain 60% of the total variation, access ions were clustered in 36 clusters based on Gower's distance (quantitative and qualitat ive traits) and in 8 clusters only based on Eucli dean's distance (quantitative traits). Rice landraces Seto marsi from Kaski, Pakhe and Darmali from Lamjung, Anga and Jarneli from Rasuwa, Anadi from Sindhupalchok and Jumli dhan and Kalo marsi from Jumla were found superior based on preliminary evaluation of important traits yie ld, disease, grain texture and maturity and considered to be important in crop improvement. Link for e-copy: http://elibrary.narc.gov.np/?r=858 in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. I / Giri, Y.P.     Agro-morphological characterization of Nepalese Rice (Oryza sativa) L. Landraces [printed text] / Krishna Hari Ghimire ; Mukunda Bhattarai ; Bal Krishna Joshi ; Madan Raj Bhatta, Author . - [s.d.] . - 36-42 p. Languages : English (eng) Keywords: rice  ;  landrace  accession  diversity  traits Abstract: Nepal is considered one of the centers of diversity of Rice (Oryza sativa L.). A total of 1137 accessions of rice were characterized during 2010, 2011 and 2012 at National Agriculhire Genetic Resources Centre (NAGRC), Khumaltar, Lalitpur, Nepal. Eight quantitative and 19 qualitative traits were recorded using rice descriptors Shannon-Weaver diversity indices (H') was 0.92, 0.90, 0.90, 0.89, 0.86, 0.90, 0.88, 0.88, 0.67, 0.67 , 0.54, 0.69, 0.57, 0.55 , 0.74, 0.84, 0.85, 0.80 and 0.66 for days to head ing and maturity, plant height, panicle length, ligule length, leaf length and width, grain length a11d width, blade pubescence, basal leaf sheath color, flag leaf angle, culm angle, internode color, panicle exertion, shattering, awn color, apiculus color and spikelet sterility respectively that revealed there is a great diversity in Nepalese rice landraces. To exp lain 60% of the total variation, access ions were clustered in 36 clusters based on Gower's distance (quantitative and qualitat ive traits) and in 8 clusters only based on Eucli dean's distance (quantitative traits). Rice landraces Seto marsi from Kaski, Pakhe and Darmali from Lamjung, Anga and Jarneli from Rasuwa, Anadi from Sindhupalchok and Jumli dhan and Kalo marsi from Jumla were found superior based on preliminary evaluation of important traits yie ld, disease, grain texture and maturity and considered to be important in crop improvement. Link for e-copy: http://elibrary.narc.gov.np/?r=858

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Agro-morphological characterization of promising rice (Oryza Sativa L.) Genotypes for hills of Nepal / R.K Basnet    

Public ISBD 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 in Summer crops research in Nepal: Proceedings of the 25th Summer Crops Workshop held at Kathmandu 21-23 June 2007 / Adhikari, N.P.     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. 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

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Characterization and utilization of rice germplasms in Nepal / SR Gupta    

Public ISBD in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.     Title : Characterization and utilization of rice germplasms in Nepal Material Type: printed text Authors: SR Gupta ; HB KC, Author ; Upadhyay, M.P., Author Pagination: 402-407 p. Languages : English (eng) Keywords: Genetic  variation  ;  oryza  rice  landraces  traits Abstract: Rice (Oryza sativa LJ is the main cereal grain and an important staple food crop ofNepal. It is grown in a wide range of agro ecological regions where landraces and improved varieties coexist. High level of diversity in the form of landraces and their wild relatives indicates the richness . in the genetic variation. A total of 13 7 accessio.zs of rice landraces were characterized for ·morpho agronomic traits using IPGRIJIRRJ descriptors at Khumaltar during 200212003. Eight quantitative and six qualitative traits were recorded to assess the diversity in agro morphological traits among these landraces. A range of variability was observed among the accessions of rice landraces. Altogether 3107, 1728 and 2030 accessions of Nepalese rice germplasms are conserved in the gene bank of ABD, Khumatar, IRRI and NIAR, respectively. Six varieties of rice were developed and released for commercial cultivation using local landraces. The examined /andraces of rice have high variability for agro morphological traits, which can be used in crop improvement programme. Characterization, conservation and utilization of such valuable resources would provide a sustainable basis for rice improvement in future. Link for e-copy: http://elibrary.narc.gov.np/?r=1129 in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.     Characterization and utilization of rice germplasms in Nepal [printed text] / SR Gupta ; HB KC, Author ; Upadhyay, M.P., Author . - [s.d.] . - 402-407 p. Languages : English (eng) Keywords: Genetic  variation  ;  oryza  rice  landraces  traits Abstract: Rice (Oryza sativa LJ is the main cereal grain and an important staple food crop ofNepal. It is grown in a wide range of agro ecological regions where landraces and improved varieties coexist. High level of diversity in the form of landraces and their wild relatives indicates the richness . in the genetic variation. A total of 13 7 accessio.zs of rice landraces were characterized for ·morpho agronomic traits using IPGRIJIRRJ descriptors at Khumaltar during 200212003. Eight quantitative and six qualitative traits were recorded to assess the diversity in agro morphological traits among these landraces. A range of variability was observed among the accessions of rice landraces. Altogether 3107, 1728 and 2030 accessions of Nepalese rice germplasms are conserved in the gene bank of ABD, Khumatar, IRRI and NIAR, respectively. Six varieties of rice were developed and released for commercial cultivation using local landraces. The examined /andraces of rice have high variability for agro morphological traits, which can be used in crop improvement programme. Characterization, conservation and utilization of such valuable resources would provide a sustainable basis for rice improvement in future. Link for e-copy: http://elibrary.narc.gov.np/?r=1129

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Characterization of finger millet (Eleusine coracana Gaertu.) Germplasm with agro Morphological makers / Bhattarai M

Public ISBD Title : Characterization of finger millet (Eleusine coracana Gaertu.) Germplasm with agro Morphological makers Material Type: printed text Authors: Bhattarai M, Editor ; Ghimire, K.H. ; B.K. Joshi, Author ; Bhatta, M.R., Author Pagination: 184-189 p. Keywords: Finger  millet  ;  agro-morphological  makers  diversity  traits Abstract: Finger millet [Eleusine coracana (L.) Gaertn.] is an important crop of the millets group cultivated in terai and hills of Nepal. A total of 537 accessions of finger millet were characterized during the years 2010 and 2012 at National Agriculture Genetic Resources Centre (NAGRC), Khumaltar, Lalitpur, Nepal. Standard characterization descriptors were used to record 12 quantitative and 7 qualitative characters. Different measures of variation like mean, standard deviation, range, Shannon-Weaver diversity indices (H') were used for the assessment of diversity between the accessions. Highest degree of diversity was observed for number of leaves (0.906) followed by leaf sheath length (0.902), ear exertion (0.901), blade length of flag leaf (0.893), leaf blade width (0.886), heading days (0.885), plant height (0.879), leaf blade length (0.872), number of productive tillers (0.860), finger length (0.841) and ear size (0.830). With the R2 value of 0.6, 14 clusters were observed based on Euclidean's distance (quantitative traits) whereas with the R2 value of 0.8, 12 clusters were observed based on Gower's distance (quantitative and qualitative traits). Three principle components explained 96.13% of the total variation in the collection. Ear shape (0.99) is the most important variable in principle component 1. Characterization of finger millet (Eleusine coracana Gaertu.) Germplasm with agro Morphological makers [printed text] / Bhattarai M, Editor ; Ghimire, K.H. ; B.K. Joshi, Author ; Bhatta, M.R., Author . - [s.d.] . - 184-189 p. Keywords: Finger  millet  ;  agro-morphological  makers  diversity  traits Abstract: Finger millet [Eleusine coracana (L.) Gaertn.] is an important crop of the millets group cultivated in terai and hills of Nepal. A total of 537 accessions of finger millet were characterized during the years 2010 and 2012 at National Agriculture Genetic Resources Centre (NAGRC), Khumaltar, Lalitpur, Nepal. Standard characterization descriptors were used to record 12 quantitative and 7 qualitative characters. Different measures of variation like mean, standard deviation, range, Shannon-Weaver diversity indices (H') were used for the assessment of diversity between the accessions. Highest degree of diversity was observed for number of leaves (0.906) followed by leaf sheath length (0.902), ear exertion (0.901), blade length of flag leaf (0.893), leaf blade width (0.886), heading days (0.885), plant height (0.879), leaf blade length (0.872), number of productive tillers (0.860), finger length (0.841) and ear size (0.830). With the R2 value of 0.6, 14 clusters were observed based on Euclidean's distance (quantitative traits) whereas with the R2 value of 0.8, 12 clusters were observed based on Gower's distance (quantitative and qualitative traits). Three principle components explained 96.13% of the total variation in the collection. Ear shape (0.99) is the most important variable in principle component 1.

Conservation and characterization of finger millet (Eleusine Coracana L.) Germplasm in Nepal / SR Gupta    

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Morphological Characterization and use of rice (oryza sativa L.) Germplasm in Nepal / Upadhyay, M.P.    

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Rice Varietal Study in the Eastern Hills of Nepal / Sah, S.N.    

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Variability and crossability study on cultivated and wild species of rice (Oryza sativa L.) / SR Gupta    

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Varietal improvement on quality protein and drought tolerance maize for far western hills / Hari Kumar Prasai    

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Performance Evaluation of Promising Genotypes of Wheat and Chickpea at the Command Areas of ARS Doti / Prasai, H.K.    

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Quantitative Trait Loci(QTL)For Grain Yield Under Reproductive Stage Lowland Drought Stress In Dhagad Deshi,Swarna Population Of Rice(Oryza Sativa L. / Ghimire, K.H.  

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