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El-Diasty, Z., El-Mowafi, H., Hammada, M., Abdallah, R. (2008). GENETIC STUDIES ON THE PHOTOTHERMO SENSITIVE GENIC MALE STERILITY (PTGMS) AND ITS UTILIZATION IN RICE BREEDING.. Journal of Plant Production, 33(5), 3391-3404. doi: 10.21608/jpp.2008.166400
Z. M. El-Diasty; H. F. El-Mowafi; M. S. Hammada; R. M. Abdallah. "GENETIC STUDIES ON THE PHOTOTHERMO SENSITIVE GENIC MALE STERILITY (PTGMS) AND ITS UTILIZATION IN RICE BREEDING.". Journal of Plant Production, 33, 5, 2008, 3391-3404. doi: 10.21608/jpp.2008.166400
El-Diasty, Z., El-Mowafi, H., Hammada, M., Abdallah, R. (2008). 'GENETIC STUDIES ON THE PHOTOTHERMO SENSITIVE GENIC MALE STERILITY (PTGMS) AND ITS UTILIZATION IN RICE BREEDING.', Journal of Plant Production, 33(5), pp. 3391-3404. doi: 10.21608/jpp.2008.166400
El-Diasty, Z., El-Mowafi, H., Hammada, M., Abdallah, R. GENETIC STUDIES ON THE PHOTOTHERMO SENSITIVE GENIC MALE STERILITY (PTGMS) AND ITS UTILIZATION IN RICE BREEDING.. Journal of Plant Production, 2008; 33(5): 3391-3404. doi: 10.21608/jpp.2008.166400

GENETIC STUDIES ON THE PHOTOTHERMO SENSITIVE GENIC MALE STERILITY (PTGMS) AND ITS UTILIZATION IN RICE BREEDING.

Article 6, Volume 33, Issue 5, May 2008, Page 3391-3404  XML PDF (763.74 K)
Document Type: Original Article
DOI: 10.21608/jpp.2008.166400
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Authors
Z. M. El-Diasty1; H. F. El-Mowafi2; M. S. Hammada3; R. M. Abdallah2
1Genetic Dept., faculty of Agric., Mansoura University, Egypt.
2Rice Res. and Training Center (RRTC), Sakha, kafr El-Sheikh, Egypt.
3Genetic Dept., faculty of Agric.,Domiata Mansoura University, Egypt.
Abstract
Studies of heterosis and combining ability  of six photo /thermo-sensitive testers were estimated using line x tester analysis for some agronomic characters and yield and its components to get useful information for two-line system in hybrid rice breeding in Egypt .
The outstanding hybrid combinations for grain yield plant-1 were PTGMS-5/Dular (45.26%) with significant standard heterosis for ,panicle length (28.22%) productive tillers plant-1 (24.19%) ,panicle weight (26.93%) ,filled grains panicle-1 (25.89%),spikelets panicle-1(14.19%) ,spikelet fertility % (10.20% ) and 100-grain weight (35.62% ) .In the mean time ,PTGMS-14/Norin PL9,PTGM-7/Dular ,PTGMS-14/Giza178 and PTGMS-5/Giza 178 were considered as promising hybrids.
Among the six PTGMS lines,PTGMS-5  and PTGMS-14  were the best general combiners for grain yield and all studies characters.The testers , Dular , Giza178,M202 and Pecos were the best general combiners among testers for grain yield and most studies characters.
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