Development and identification of cold tolerant rice genotypes for high hill areas of Nepal / Upreti, H.K.    

Public ISBD in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.     Title : Development and identification of cold tolerant rice genotypes for high hill areas of Nepal Material Type: printed text Authors: Upreti, H.K., Editor ; Khatiwada, S.P. ; J.B Adhikari, Author ; RB Bhujel, Author ; P Mahat, Author Pagination: 115-119 p. Keywords: Cold  tolerant  ;  cold  injury  rice  genotypes  high  hills  livelihood Abstract: Rice (Oryza sativa L.) is the staple food crop of Nepal occupying area of about 1.5 million hectare from 60 meter in terai to 3050 meter above sea level in high hill Jumla with the productivity of 3.13 tlha. About 4.46% of the total rice land falls within high hill where cold injury due to low air temperature is the major constraint in the rice production. An attempt was made to develop cold tolerant and high yielding rive genotypes for this region by conducting on station and on farm rice varietal research. On station research were conducted at ARS Jumla and Khumaltar late planting condition involving 10-12 rice genotypes during 2009-2012 in randomized complete block design (RCBD). Four promising lines were evaluated in the farmer's field as on farm trial in OR sites of ARS Jumla, and ARS Pakhribas during 2009-2012. These lines were compared with standard check variety Chandannath-3. Among them NR10479-B-33-2-1-1 and NR10482-B-10-3-2- 2 were found promising and preferred by farmers due to its stable high yield over Chandannath-3 in tested locations. Release and wider dissemination of these genotypes will help to uplift the livelihood of high hill farmers' and help to reduce the problem of food security in high hill areas. Link for e-copy: http://elibrary.narc.gov.np/?r=938 in Proceedings of the 27th National Summer Crops Workshop, held at Rampur, Chitawan, 18-20 April 2013, Vol. II / Giri, Y.P.     Development and identification of cold tolerant rice genotypes for high hill areas of Nepal [printed text] / Upreti, H.K., Editor ; Khatiwada, S.P. ; J.B Adhikari, Author ; RB Bhujel, Author ; P Mahat, Author . - [s.d.] . - 115-119 p. Keywords: Cold  tolerant  ;  cold  injury  rice  genotypes  high  hills  livelihood Abstract: Rice (Oryza sativa L.) is the staple food crop of Nepal occupying area of about 1.5 million hectare from 60 meter in terai to 3050 meter above sea level in high hill Jumla with the productivity of 3.13 tlha. About 4.46% of the total rice land falls within high hill where cold injury due to low air temperature is the major constraint in the rice production. An attempt was made to develop cold tolerant and high yielding rive genotypes for this region by conducting on station and on farm rice varietal research. On station research were conducted at ARS Jumla and Khumaltar late planting condition involving 10-12 rice genotypes during 2009-2012 in randomized complete block design (RCBD). Four promising lines were evaluated in the farmer's field as on farm trial in OR sites of ARS Jumla, and ARS Pakhribas during 2009-2012. These lines were compared with standard check variety Chandannath-3. Among them NR10479-B-33-2-1-1 and NR10482-B-10-3-2- 2 were found promising and preferred by farmers due to its stable high yield over Chandannath-3 in tested locations. Release and wider dissemination of these genotypes will help to uplift the livelihood of high hill farmers' and help to reduce the problem of food security in high hill areas. Link for e-copy: http://elibrary.narc.gov.np/?r=938

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Wheat varietal improvement under rainfed condition for high-hills of Nepal / Thapa D.B    

Public ISBD in Proceedings of the 28th National Winter Crops Workshops held at Lumle, 9-10 March 2011 / Giri, Y.P.     Title : Wheat varietal improvement under rainfed condition for high-hills of Nepal Material Type: printed text Authors: Thapa D.B, Author ; Bhujel, R.B., Author ; Vaidhya M.L, Author ; C.B Rana, Author ; P Mahat, Author ; Joshi, B.R., Author Pagination: 167-177 p. Languages : English (eng) Keywords: Facultative,  Winter,  Wheat,  Nursery,  Trial,  Yield Abstract: In 2007/08, 2008/09 and 2009/10, hybridization, growing of different generation nurseries (F1-F7), advanced lines (National and International) observation nurseries; different yield trials were conducted at ABO Khumaltar, ARS Jumla. Different numbers of crosses were made by simple and top cross methods targeting high hill condition with diseases resistance especially yellow rust, powdery mildew, smuts and others, higher yield, and better consumption quality. Selected bulks and single genotypes were harvested from the different generations by applying selected bulk and single plant selection method respectively for generation advance suitable for high hill condition of Nepal. Genotypes selected from observation nurseries viz., High Altitude Observation Nursery (HON), Facultative and Winter Wheat Observation Nursery (FAWWON) were advanced for yield trials (High Altitude Yield Trial and Multi-location Yield Trial) at ARS Jumla and Doti............. Link for e-copy: http://elibrary.narc.gov.np/?r=1841 in Proceedings of the 28th National Winter Crops Workshops held at Lumle, 9-10 March 2011 / Giri, Y.P.     Wheat varietal improvement under rainfed condition for high-hills of Nepal [printed text] / Thapa D.B, Author ; Bhujel, R.B., Author ; Vaidhya M.L, Author ; C.B Rana, Author ; P Mahat, Author ; Joshi, B.R., Author . - [s.d.] . - 167-177 p. Languages : English (eng) Keywords: Facultative,  Winter,  Wheat,  Nursery,  Trial,  Yield Abstract: In 2007/08, 2008/09 and 2009/10, hybridization, growing of different generation nurseries (F1-F7), advanced lines (National and International) observation nurseries; different yield trials were conducted at ABO Khumaltar, ARS Jumla. Different numbers of crosses were made by simple and top cross methods targeting high hill condition with diseases resistance especially yellow rust, powdery mildew, smuts and others, higher yield, and better consumption quality. Selected bulks and single genotypes were harvested from the different generations by applying selected bulk and single plant selection method respectively for generation advance suitable for high hill condition of Nepal. Genotypes selected from observation nurseries viz., High Altitude Observation Nursery (HON), Facultative and Winter Wheat Observation Nursery (FAWWON) were advanced for yield trials (High Altitude Yield Trial and Multi-location Yield Trial) at ARS Jumla and Doti............. Link for e-copy: http://elibrary.narc.gov.np/?r=1841

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