MAGNITUDE OF HETEROSIS FOR YIELD AND ITS COMPONENTS IN HYBRID RICE (ORYZA SATIVA L.)
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 2
Abstract
Performance of sixty F1 hybrids along with their 23 parents and three standard varieties was evaluated in a randomized complete block design with three replications during Sali, 2013. Significant variation was observed for parents, hybrids and hybrids versus parents for most of the yield and yield related characters. Grain yield exhibited mid parent heterosis varying from -88.7 (IR 79156A/IET 19916) to 151.5% (IR 58025A/Prafulla), heterobeltiosis from -91.9 (IR 79156A/IET 19916) to 128.2% (IR 58025A/Prafulla) and standard heterosis ranging from -91.3 to 56.5% over the late maturing check Ranjit, -86.2 to 148.3% over medium duration check TTB 404 and -91.9 to 44.4% over the hybrid check JKRH 401. Non-significant or negative heterosis for grain yield in most hybrids was attributed to spikelet sterility of varying magnitudes. Significant and desirable SCA effects for component characters resulted in significant SCA effect and heterosis for grain yield.
Authors and Affiliations
PULIN BORAH, DEBOJIT SARMA, G. N. HAZARIKA
Keywords
Related Articles
- EP ID EP222749
- DOI -
- Views 126
- Downloads 0
Morphological Variability of Macrophomina Phaseolina (Tassi) Goid. Charcoal Rot of Sorghum
Twenty six isolates of Macrophomina phaseolina, causing charcoal rot of sorghum, obtained from different parts of Karnataka, Maharashtra and Andhra Pradesh, varied in their morphological characteristics. Colony diameter...
PERCEIVED EFFECTIVENESS OF PADDY PROMOTION PROGRAMMES UNDER DECENTRALIZED PLANNING PROCESS
The study entitled “Perceived effectiveness of paddy promotion programmes under decentralized planning process” was conducted in Thrissur district of Kerala, India. Ex-post facto research design was followed. Thirty bene...
Association Between Knowledge Level of Beneficiary and Non-Beneficiary Farmers in Nagaur District of Rajasthan
Proteins are an essential part of our diet, and for vegetarians, pulses are their main source of protein. Mungbeans is a pulse, consumed solely or along with rice askhichari. It is also added with vegetables and greens t...
AWARENESS AND PREPAREDNESS LEVEL OF LIVESTOCK FARMERS DURING FLOOD IN ODISHA, INDIA
The research work was conducted to study the awareness and preparedness level of livestock farmers during flood with respect to housing, feeding and general management, health care and vaccination, marketing and insuranc...
Use of Sequence Specific Nucleases for Site Specific Modification of Plant Genome for Crop Improvement
Crop improvement is a complex process, which not only involves selection or breeding for a desired trait, but also includes different types of agronomic practices for crop production. In most cases of crop improvement pr...