genetic assessments of some morphological traits in rice by generation mean analysis
Authors
abstract
to study the nature and magnitude of gene effects, heritability and number of effective factors for grain yield and some yield components in rice, six generations viz., p1, p2, f1, f2, bc1 and bc2 were prepared from the crosses of shapasand × irfaon-215 and irfaon-215 × saleh and grown in a randomized complete design with three replications. results of analysis of variance showed significant differences between generations for all traits. significant heterosis was observed for grain yield, plant height, and panicle length and 100-grain weight. additive (a) gene actions were important in controlling of grain width, length and shape in the first cross (sh × ir) and grain length in the second cross (ir × sa). 100-grain weight, plant height and grain yield in the first cross and grain width and shape, 100-grain weight, days to flowering and grain yield in the second cross were influenced by dominance (d) gene actions and epistatic effects. degree of dominance revealed over-dominance for grain length and shape, 100-grain weight and grain yield in sh × ir and for grain shape and 100-grain weight in ir × sa. for the rest of traits partial dominance was revealed. for yield and those yield components that were influenced by non-additive gene action, exploiting of heterosis are suggested for improving rice yield using breeding materials of this research.
similar resources
Genetic analysis of traits related to grain yield in wheat under drought stress condition by generation mean analysis
In order to study the inheritance of some traits related to grain yield in drought stress conditions in bread wheat (Triticum aestivum L.), F2, F3 and F4 generations derived from a Kharchia (tolerant) × Gaspard (susceptible) cross and their parents were used separately in a complete randomized block design with two replications. Stem length, biological yield, main spike straw weight, total spik...
full textRelationship Between Morphological Traits in Rice Restorer Lines at F3 Generation Using Multivariate Analysis
In order to evaluate the relationship between morphological characters in rice lines two populations at F3 generation were grown in research field of Agricultural Sciences and Natural Resource University, Sari, Iran, during 2012. Statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...
full textRelationship Between Morphological Traits in Rice Restorer Lines at F3 Generation Using Multivariate Analysis
In order to evaluate the relationship between morphological characters in rice lines two populations at F3 generation were grown in research field of Agricultural Sciences and Natural Resource University, Sari, Iran, during 2012. Statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...
full textRelationship Between Morphological Traits in Rice Restorer Lines at F3 Generation Using Multivariate Analysis
In order to evaluate the relationship between morphological characters in rice lines two populations at F3 generation were grown in research field of Agricultural Sciences and Natural Resource University, Sari, Iran, during 2012. Statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...
full textRelationship Between Morphological Traits in Rice Restorer Lines at F3 Generation Using Multivariate Analysis
In order to evaluate the relationship between morphological characters in rice lines two populations at F3 generation were grown in research field of Agricultural Sciences and Natural Resource University, Sari, Iran, during 2012. Statistical analysis on important agronomic traits showed that maximum standard deviation belonged to total grain number followed by filled grains per panicle and grai...
full textthe stady and analysis of rice agroclimatology in lenjan
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
15 صفحه اولMy Resources
Save resource for easier access later
Journal title:
علوم گیاهان زراعی ایرانجلد ۴۲، شماره ۱، صفحات ۱-۱۳
Keywords
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023