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in
| 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
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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