6 result(s) search for keyword(s) 'open'    

Development, maintenance and seed multiplication of open-pollinated maize varieties

Public ISBD Title : Development, maintenance and seed multiplication of open-pollinated maize varieties Material Type: printed text Authors: , Publisher: Mexico : CIMMYT Publication Date: 1984 Pagination: 11 Keywords: Maize;  Open  pollination;  Seed  production;  Cereals Development, maintenance and seed multiplication of open-pollinated maize varieties [printed text] / , . - Mexico : CIMMYT, 1984 . - 11. Keywords: Maize;  Open  pollination;  Seed  production;  Cereals

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Barcode	Call number	Media type	Location	Section	Status
NR-1461	NR-1461,	Document	NARC Library	Documents	Available

Effect of enriched C02 on rice under open top chamber condition at Khumaltar / Sherchan, K.    

Public ISBD Title : Effect of enriched C02 on rice under open top chamber condition at Khumaltar Material Type: printed text Authors: Sherchan, K., Author ; Shrestha, S., Author ; Alok Sharma, Author Pagination: 60-66 p. Languages : English (eng) Keywords: Enriched  C02,  open  top  chamber,  rice  yield Abstract: During panicle initiation and flowering singes, C02 enriched plot had the highest leaf area index (LAI) in the first year. Minimum temperature was slightly higher in C02 enriched plot C02 enriched plot had  15% and ambient plot had only 10% increase in grain yield as compare to the field. The C02 enriched plot had almost higher straw yield than others. It was about 30 to 37% higher than field plot. Number of tillers per square meter was highest in C02enriched plot followed by ambient and field plot. Plant height and panicle length were both higher in C02 enriched plot. C02 enriched plot had lesser N, P and K content in grain, straw and root. However, organic carbon (OC) content in root was more than 100% as compare to the field plot. C:N ratio were also higher except in the grain. Higher grain yield in C02 enriched plot was due to higher number of tillers per square meter, seeds per panicle and panicle length. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=921 Effect of enriched C02 on rice under open top chamber condition at Khumaltar [printed text] / Sherchan, K., Author ; Shrestha, S., Author ; Alok Sharma, Author . - [s.d.] . - 60-66 p. Languages : English (eng) Keywords: Enriched  C02,  open  top  chamber,  rice  yield Abstract: During panicle initiation and flowering singes, C02 enriched plot had the highest leaf area index (LAI) in the first year. Minimum temperature was slightly higher in C02 enriched plot C02 enriched plot had  15% and ambient plot had only 10% increase in grain yield as compare to the field. The C02 enriched plot had almost higher straw yield than others. It was about 30 to 37% higher than field plot. Number of tillers per square meter was highest in C02enriched plot followed by ambient and field plot. Plant height and panicle length were both higher in C02 enriched plot. C02 enriched plot had lesser N, P and K content in grain, straw and root. However, organic carbon (OC) content in root was more than 100% as compare to the field plot. C:N ratio were also higher except in the grain. Higher grain yield in C02 enriched plot was due to higher number of tillers per square meter, seeds per panicle and panicle length. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=921

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Performance of open pollinated full season maize varieties in the central hills of Nepal / Pokharel, B.B.    

Public ISBD Title : Performance of open pollinated full season maize varieties in the central hills of Nepal Material Type: printed text Authors: Pokharel, B.B., Editor ; Koirala, K.B. ; K Baral, Author ; S Subedi, Author ; A Timilsina, Author ; S Thapa, Author Pagination: 59-65 p. Languages : English (eng) Keywords: Open  pollinated  ;  full  season  central  hills  of  Nepal Abstract: Maize is the staple crop of mid and high hills of Nepal. Farmers are in continuous search for stable and high yielding genotypes that can perform well under ra.infed condition. In order to identify suitable maize genotype addressing the fanners demand, series of field researches like intermediate yield trial (TYT), coordinated varietal trial (CVT) and coordinated farmers field frial (CFFT) were conducted at the research field of HCRP and the farmers' field of Dolakha and Ramechhap during the rainy season of 20 11 and 2012. The testing materials were made available from NMRP, Rampur. The design was laid out in RCBD with three replications. Twelve genotypes in IYT and CVT each and 6 genotypes in CFFT were tested. The result from IYT, CVT and FFT showed significant variation among genotypes for grain yield and associated traits. In IYT genotypes 07SADVI, TLBRS07F14 and ZM-401 were found superior. In CVT, genotypes Rampur S03F04 and Rampur S03F08 were found promising. Genotypes P501SRCOIP502SRCO, Across9942/Across9944, and BGBYPOP were found· superior in the farmers' field experiment and could be recommended for mid hill regions of Dolakha and similar environments. Similarly, hybrids RML-4/RML-17 and RML-32/RML-17 were found encouraging. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=930 Performance of open pollinated full season maize varieties in the central hills of Nepal [printed text] / Pokharel, B.B., Editor ; Koirala, K.B. ; K Baral, Author ; S Subedi, Author ; A Timilsina, Author ; S Thapa, Author . - [s.d.] . - 59-65 p. Languages : English (eng) Keywords: Open  pollinated  ;  full  season  central  hills  of  Nepal Abstract: Maize is the staple crop of mid and high hills of Nepal. Farmers are in continuous search for stable and high yielding genotypes that can perform well under ra.infed condition. In order to identify suitable maize genotype addressing the fanners demand, series of field researches like intermediate yield trial (TYT), coordinated varietal trial (CVT) and coordinated farmers field frial (CFFT) were conducted at the research field of HCRP and the farmers' field of Dolakha and Ramechhap during the rainy season of 20 11 and 2012. The testing materials were made available from NMRP, Rampur. The design was laid out in RCBD with three replications. Twelve genotypes in IYT and CVT each and 6 genotypes in CFFT were tested. The result from IYT, CVT and FFT showed significant variation among genotypes for grain yield and associated traits. In IYT genotypes 07SADVI, TLBRS07F14 and ZM-401 were found superior. In CVT, genotypes Rampur S03F04 and Rampur S03F08 were found promising. Genotypes P501SRCOIP502SRCO, Across9942/Across9944, and BGBYPOP were found· superior in the farmers' field experiment and could be recommended for mid hill regions of Dolakha and similar environments. Similarly, hybrids RML-4/RML-17 and RML-32/RML-17 were found encouraging. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=930

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Study on rice and CO2-C emission under differnt temperature regime in mid-hill conditon / Ghanashyam Malla    

Public ISBD Title : Study on rice and CO2-C emission under differnt temperature regime in mid-hill conditon Material Type: printed text Authors: Ghanashyam Malla ; Gautam, Anand Kumar, Author ; Amit Timilsina, Author Pagination: 247-249 p. Languages : English (eng) Keywords: CO2-C  emission  ;  open  top  chamber  (OTC)  planting  dates  rainfall  pattern Abstract: Elevated temperature and unusual rain is adversely affecting agricultural crops. Threats in the rice crop due to temperature rise are: change in crop phenology, physiology, grain yield and even crop success along with moisture and nutrient availability. An experiment was carried out in field and open top chamber (OTC) to study the response of rice variety (Khumal 4), C02-C emission under different temperature regime and different dates of transplanting (19th June, 29th June, 9th July) in 20 I 0 and 2012. Experiment showed that heading and maturity were 4-7 and I 0-12 days earlier in OTC .Average grain yield was higher by 9.2% in OTC. Higher average grain yield was recorded in 3'd date of planting under both conditions. Average daily temperature was 4-5°C higher in OTC. C02-C emission under OTC was nearly 24% higher compared to field, whereas organic carbon in OTC was lower compared to field. Thus, yield can be increased under elevated temperature and unusual rainfall with proper water management practices. Therefore, a strong monitoring system on climatic parameters and their impact on crop have to be regulated to increase rice crop production. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=904 Study on rice and CO2-C emission under differnt temperature regime in mid-hill conditon [printed text] / Ghanashyam Malla ; Gautam, Anand Kumar, Author ; Amit Timilsina, Author . - [s.d.] . - 247-249 p. Languages : English (eng) Keywords: CO2-C  emission  ;  open  top  chamber  (OTC)  planting  dates  rainfall  pattern Abstract: Elevated temperature and unusual rain is adversely affecting agricultural crops. Threats in the rice crop due to temperature rise are: change in crop phenology, physiology, grain yield and even crop success along with moisture and nutrient availability. An experiment was carried out in field and open top chamber (OTC) to study the response of rice variety (Khumal 4), C02-C emission under different temperature regime and different dates of transplanting (19th June, 29th June, 9th July) in 20 I 0 and 2012. Experiment showed that heading and maturity were 4-7 and I 0-12 days earlier in OTC .Average grain yield was higher by 9.2% in OTC. Higher average grain yield was recorded in 3'd date of planting under both conditions. Average daily temperature was 4-5°C higher in OTC. C02-C emission under OTC was nearly 24% higher compared to field, whereas organic carbon in OTC was lower compared to field. Thus, yield can be increased under elevated temperature and unusual rainfall with proper water management practices. Therefore, a strong monitoring system on climatic parameters and their impact on crop have to be regulated to increase rice crop production. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=904

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Maize varietal improvement for terai, inner terai and food hill valleys of Nepal / Kunwar, C.B.    

Public ISBD Title : Maize varietal improvement for terai, inner terai and food hill valleys of Nepal Material Type: printed text Authors: Kunwar, C.B., Editor ; B.N Chaudhari ; Sah, Y.P., Author ; Bhurer, K.P., Author ; Dhakal, J., Author ; J.B Chhetri Keywords: Open  Pollinated  Varietis  (OPVs)  Genotypes  ;  Coordinated  varietal  trial  Terai  inner  terai Abstract: With the objective of identifying high yielding, disease resistant yello'Y maize varieties, a series of experiments were conducted during 2010-2012 in RCB Des~gn. In the Intermediate Yield Trial-Terai Set (IYTT), twenty-one genotypes including standerd check were tested. The result obtained from the combined analysis at four locations (RARS Parwanipur, ARS Belachapi, ARS Surkhet, and NMRP Rampur) sh.owed that the genotypes R POP-1 found highest yielder (5.89 tlha) followed by R POP-2 (5.82 tlha) and RAMPUR S03F04 (5.78 tlha) were produced higher grain yield respectively. In the Co-ordinated Varietal Trial-Terai Set (CVTf), the trial was composed multi-location testing for six locations on winter season (NMRP Rampur, RARS Tarahara, RARS Parwanipur and ARS Belachapi) and OJi summer season (NMRP Rampur, ARS Surkhet and ARS Doti) with fourteen treatments including checks. The combined analysis revealed that the genotype Rampur population-2 produced the highest grain yield (5.88 t/ha) followed by Rampur Population-4 (5.67 tlha), ACROSS9331RE (5.49 tlha) and BLSBS07F10 (5.24 tlha) respectively. All the genotypes were found highly significant at 15% moisture level for grain yield. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=932 Maize varietal improvement for terai, inner terai and food hill valleys of Nepal [printed text] / Kunwar, C.B., Editor ; B.N Chaudhari ; Sah, Y.P., Author ; Bhurer, K.P., Author ; Dhakal, J., Author ; J.B Chhetri . - [s.d.]. Keywords: Open  Pollinated  Varietis  (OPVs)  Genotypes  ;  Coordinated  varietal  trial  Terai  inner  terai Abstract: With the objective of identifying high yielding, disease resistant yello'Y maize varieties, a series of experiments were conducted during 2010-2012 in RCB Des~gn. In the Intermediate Yield Trial-Terai Set (IYTT), twenty-one genotypes including standerd check were tested. The result obtained from the combined analysis at four locations (RARS Parwanipur, ARS Belachapi, ARS Surkhet, and NMRP Rampur) sh.owed that the genotypes R POP-1 found highest yielder (5.89 tlha) followed by R POP-2 (5.82 tlha) and RAMPUR S03F04 (5.78 tlha) were produced higher grain yield respectively. In the Co-ordinated Varietal Trial-Terai Set (CVTf), the trial was composed multi-location testing for six locations on winter season (NMRP Rampur, RARS Tarahara, RARS Parwanipur and ARS Belachapi) and OJi summer season (NMRP Rampur, ARS Surkhet and ARS Doti) with fourteen treatments including checks. The combined analysis revealed that the genotype Rampur population-2 produced the highest grain yield (5.88 t/ha) followed by Rampur Population-4 (5.67 tlha), ACROSS9331RE (5.49 tlha) and BLSBS07F10 (5.24 tlha) respectively. All the genotypes were found highly significant at 15% moisture level for grain yield. Link for e-copy: http://nepaknol.org.np/narc/dl/?r=932

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On-farm performance of quality protein maize genotypes under rainfed hill environments of Nepal / Upadhyay, S.R.    

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