Genetic Dissection of Some Important Agronomic Traits in Rice Using Line × Tester Method
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2014, Vol 2, Issue 1
Abstract
A study was conducted on genetics of some important agronomic traits (number of productive tillers per hill, plant height (cm), panicle length (cm), number of spikelets per panicle and 100-grain weight) in rice during 2012-13. Two lines were crossed with five testers in line × tester fashion to produce 10 F1 hybrids. Analysis of variance revealed significant differences among genotypes and crosses. Variances of SCA were higher than the GCA variances for number of productive tillers per hill, panicle length (cm) and 100-grain weight (gr) which indicated predominance of non-additive gene action in the inheritance of these traits. P35 tester produced the lowest height among testers, highest number of productive tillers and number of spikelets per panicle among parents and its hybrids produced highest number of productive tillers, highest panicle length (cm), highest number of spikelets per panicle (Tarom-Jelodar × P35) and lowest height (Danesh × P35) among hybrids. Also this variety was found to be good general combiner for height (cm) and panicle length (cm). Crosses namely Tarom-Jelodar × Sange-Tarom, Danesh × Jahesh and Danesh × P35 had useful and significant heterosis for all traits. These crosses were identified as promising genotypes for increasing of rice yield in future improvement programs. Thus hybrid varieties have positive potential for rice breeding.
Authors and Affiliations
Zeinab Montazeri| MSc student, Sari Agricultural Science and Natural Resources University, Sari, Iran, E-mail: zeinabmontazeri7@yahoo.com, Nadali Babaeian Jelodar| Professor and Associate Professor, Sari Agricultural Science and Natural Resources University, Sari, Iran, Nadali Bagheri| Professor and Associate Professor, Sari Agricultural Science and Natural Resources University, Sari, Iran
Keywords
Related Articles
- EP ID EP12989
- DOI -
- Views 325
- Downloads 11
Plant species diversity in Gonabad
Gonabad located at Khorasan Razavi and coordinates 580 30’ N 34o 35’ E. The highest point of the zone belongs to Peak of Siah Mountain (height of 2,863 meters above sea level) and the lowest place has height of 810...
Effect of Anti Browning Agents on Partial Purified Polyphenol Oxidase of Hawthorn (Crataegus Spp)
Objective: Polyphenol oxidase or PPO (EC 1.14.18.1) is considered the enzyme responsible for quality deterioration and browning in different fruits during postharvest period. The objective of this study was to evaluate...
Effects of Climate Change and Drought-Stress on Plant Physiology
Drought is still limited in most crops is produced. Morphological and physiological knowledge to improve drought resistance under drought conditions created problems important is the fact each of these genetic relation...
Differentiation of Coastal Sedimentary Environments using GIS and RS Techniques (Case Study: Coasts of Chabahar Gulf)
The coastal region of Chabahar Gulf with 1113.7km2 area has been located in the southeast of Iran. In this research, satellite images of ETM+ (2004) were used in order to zoning of sedimentary environments in this Gulf...
Effect of Sodium dodecyl sulphate on partial purified polyphenol oxidase activity in Red and Green tomatoes (Solanum Lycopersicum)
In order to better understand how to prevent enzymatic greenning, it is important to understand kinetic properties of polyphenol oxidase. we investigated the effect of SDS on the rate of catechol oxidation by small che...