Exploiting heterosis and combining ability in two-line hybrid rice
Twenty hybrids were developed from crossing four environmental genic male sterile (EGMS) lines with five testers in line × tester mating design to magnitude of heterosis over better parent for grain yield and contributing traits in rice (Oryza sativa L.). Five hybrids ‘WTSC9059’ × ‘Sakha101’, ‘WTSC9...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Ljubljana Press (Založba Univerze v Ljubljani)
2021-03-01
|
| Series: | Acta Agriculturae Slovenica |
| Subjects: | |
| Online Access: | https://journals.uni-lj.si/aas/article/view/12994 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850031511225499648 |
|---|---|
| author | Mahmoud M. GABALLAH Aziz F. EL-EZZ Adel M. GHONEIM Baochang YANG Langtao XIAO |
| author_facet | Mahmoud M. GABALLAH Aziz F. EL-EZZ Adel M. GHONEIM Baochang YANG Langtao XIAO |
| author_sort | Mahmoud M. GABALLAH |
| collection | DOAJ |
| description | Twenty hybrids were developed from crossing four environmental genic male sterile (EGMS) lines with five testers in line × tester mating design to magnitude of heterosis over better parent for grain yield and contributing traits in rice (Oryza sativa L.). Five hybrids ‘WTSC9059’ × ‘Sakha101’, ‘WTSC9039’ × ‘Sakha102’, ‘WTSC9059’ × ‘Sakha108’, ‘WTSC9039’ × ‘Sakha108’ and ‘WTSC9039’ × ‘Sakha101’ express superior value for number of panicles, fertility percentage, 100-grain mass, grain yield, apparent heterosis and phenotypic acceptance. The top three heterotic combinations identified for grain yield/ha were ‘WTSC9059’ × ‘Sakha101’, ‘WTSC9039’ × ‘Sakha102’ and ‘Longping’ × ‘Sakha105’ which exhibited 100.00, 71.51 and 66.61 % heterobeltiosis, respectively. The lines ‘WTSC9059’ and ‘‘Longping’’ and testers ‘Sakha101’, ‘Sakha102’ and ‘Sakha108’ was found to be good general combiner for most of the characteristics and could be extensively used in future hybrid rice breeding program. The grain yield was correlated highly significant and positive with panicle exertion, panicle mass, fertility percentage and appearance of heterosis, otherwise the negative correlation and significant was found with flag leaf area. |
| format | Article |
| id | doaj-art-01ba7e37509246b7857bb5675fa55280 |
| institution | DOAJ |
| issn | 1854-1941 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | University of Ljubljana Press (Založba Univerze v Ljubljani) |
| record_format | Article |
| series | Acta Agriculturae Slovenica |
| spelling | doaj-art-01ba7e37509246b7857bb5675fa552802025-08-20T02:58:56ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412021-03-01117111610.14720/aas.2021.117.1.184719386Exploiting heterosis and combining ability in two-line hybrid riceMahmoud M. GABALLAH0Aziz F. EL-EZZ1Adel M. GHONEIM2Baochang YANG3Langtao XIAO4Agricultural Research Center, Field Crops Research Institute, Rice Research and Training Center, Sakha, Kafr Elsheikh, EgyptAgricultural Research Center, Field Crops Research Institute, Rice Research and Training Center, Sakha, Kafr Elsheikh, EgyptAgricultural Research Center, Field Crops Research Institute, Rice Research and Training Center, Sakha, Kafr Elsheikh, EgyptWinall Thriving Seed Co., ltd. Hefei, Anhui, ChinaHunan Agricultural University, Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Changsha, ChinaTwenty hybrids were developed from crossing four environmental genic male sterile (EGMS) lines with five testers in line × tester mating design to magnitude of heterosis over better parent for grain yield and contributing traits in rice (Oryza sativa L.). Five hybrids ‘WTSC9059’ × ‘Sakha101’, ‘WTSC9039’ × ‘Sakha102’, ‘WTSC9059’ × ‘Sakha108’, ‘WTSC9039’ × ‘Sakha108’ and ‘WTSC9039’ × ‘Sakha101’ express superior value for number of panicles, fertility percentage, 100-grain mass, grain yield, apparent heterosis and phenotypic acceptance. The top three heterotic combinations identified for grain yield/ha were ‘WTSC9059’ × ‘Sakha101’, ‘WTSC9039’ × ‘Sakha102’ and ‘Longping’ × ‘Sakha105’ which exhibited 100.00, 71.51 and 66.61 % heterobeltiosis, respectively. The lines ‘WTSC9059’ and ‘‘Longping’’ and testers ‘Sakha101’, ‘Sakha102’ and ‘Sakha108’ was found to be good general combiner for most of the characteristics and could be extensively used in future hybrid rice breeding program. The grain yield was correlated highly significant and positive with panicle exertion, panicle mass, fertility percentage and appearance of heterosis, otherwise the negative correlation and significant was found with flag leaf area.https://journals.uni-lj.si/aas/article/view/12994heterosiscombining abilityline × testercorrelationhybrid rice |
| spellingShingle | Mahmoud M. GABALLAH Aziz F. EL-EZZ Adel M. GHONEIM Baochang YANG Langtao XIAO Exploiting heterosis and combining ability in two-line hybrid rice Acta Agriculturae Slovenica heterosis combining ability line × tester correlation hybrid rice |
| title | Exploiting heterosis and combining ability in two-line hybrid rice |
| title_full | Exploiting heterosis and combining ability in two-line hybrid rice |
| title_fullStr | Exploiting heterosis and combining ability in two-line hybrid rice |
| title_full_unstemmed | Exploiting heterosis and combining ability in two-line hybrid rice |
| title_short | Exploiting heterosis and combining ability in two-line hybrid rice |
| title_sort | exploiting heterosis and combining ability in two line hybrid rice |
| topic | heterosis combining ability line × tester correlation hybrid rice |
| url | https://journals.uni-lj.si/aas/article/view/12994 |
| work_keys_str_mv | AT mahmoudmgaballah exploitingheterosisandcombiningabilityintwolinehybridrice AT azizfelezz exploitingheterosisandcombiningabilityintwolinehybridrice AT adelmghoneim exploitingheterosisandcombiningabilityintwolinehybridrice AT baochangyang exploitingheterosisandcombiningabilityintwolinehybridrice AT langtaoxiao exploitingheterosisandcombiningabilityintwolinehybridrice |