Utilizing two line system in hybrid rice (Oryza sativa L.) and potential yield advantage under Egyptian conditions
Journal Title: Agricultural Advances - Year 2017, Vol 6, Issue 3
Abstract
Photo-thermosensitive genic male sterile (PTGMS) lines of rice have tremendous potential in realizing further quantum yield and economical hybrid rice seed production cost. The study was conducted during two rice growing seasons of 2015 and 2016 at the Experimental Farm of the Rice Research and Training Center (RRTC), Sakha, Kafr El-Sheikh, Egypt. Ten hybrid rice combinations derived from hybridization of one elite and adapted Japonica PTGMS line (PTGMS-38) and ten Indica, Japonica and Indica Japonica genotypes along with two check (Giza 178 and Giza 179) were used to analyze the genetic parameters and standard heterosis for 10 traits. Highly significant positive standard heterosis over the best local check varieties Giza 178 and Giza 179 for grain yield/plant was observed in all hybrids. The hybrids, PTGMS-38 x Sakha 106 (H10), PTGMS-38 x GZ8479 (H9), PTGMS-38 x Chinese 2 (H8), PTGMS-38 x Giza 177 (H6) and PTGMS-38 x Sakha 101 (H7) with standard heterosis of 54.47, 54.03, 51.63, 50.98 and 49.24%, respectively over the best local check variety Giza 179 were considered as promising. Mean sum of squares due to genotypes showed significant differences for ten traits studied, indicating the presence of high genetic variability among the genotypes. The estimation of GCV was lower than the respective PCV, indicating the influence of environmental factor on the expression of the studied traits. Characters like, spikelet fertility percentage (99.12 and 47.21%), grain yield/plant (98.30 and 36.11%), plant height (99.20 and 35.28%), panicle weight (97.30 and 35.27%) and flag leaf area (89.32 and 31.97%) showed high heritability coupled with moderate genetic advance, suggesting that selection for the improvement of these characters may be rewarding and also greater role of non-additive gene action and suggesting heterosis breeding could be used to improve these characters. Based on ten studied characters, the genotypes were grouped into three clusters at 0.98% similarities coefficient.
Authors and Affiliations
Galal Anis| Rice Research and Training Center, Field Crops Research Inst., Agric. Research Center, Egypt., Hamdi El-Mowafi| Rice Research and Training Center, Field Crops Research Inst., Agric. Research Center, Egypt., Ahmed El-Sherif| Rice Research and Training Center, Field Crops Research Inst., Agric. Research Center, Egypt., Haytham Freeg| Rice Research and Training Center, Field Crops Research Inst., Agric. Research Center, Egypt., Arafat El-Sayed| Rice Research and Training Center, Field Crops Research Inst., Agric. Research Center, Egypt., Ayman EL Sabagh*| Agronomy Department, Faculty of Agriculture, Kafrelsheikh University, Egypt.
Keywords
Related Articles
- EP ID EP598
- DOI 10.14196/aa.v6i3.2375
- Views 518
- Downloads 27
Recent developments in diagnosis and management of nutrients constraints in acid lime
Acidlime is considered highly nutrient responsive crop. Occurrence of multiple nutrient deficienciesmakes the redressal of such nutrient deficiencies all the more complexexercise. Site specific nutrient management stu...
The effects of protexin probiotic and chicoridin supplementation on performance and some hematological parameters in Jap
This experiment was conducted to evaluate the effects of feedingprotexin and chicoridin tableon performance and some hematological parameters of Japanese quail.A total of 240 seven days old quail chicks with an average...
An overview of biomass and biogas for energy generation: recent development and perspectives
Biogas from biomass appears to have potential as an alternative energy source, which is potentially rich in biomass resources. This is an overview of some salient points and perspectives of biogas technology. The curre...
Comparative study on productive performance and hatching traits of three age groups of indigenous Mushki Aseel chickens
The purpose of study was to compare three different age groups of Mushki Aseel, an indigenous chicken breed maintained at Indigenous Chicken Genetic Resource Center (ICGRC), Department of Poultry Production, University...
Optimization of zooplankton production from pig dung optimal dose: renewed medium
Present study was realized in the aim to optimize of a renewed medium for the production of zooplankton with pig dung. In fact, the experiment was carried out in triplicate in plastic buckets, grouped together by three...