Correlation and Path Coefficient Analysis of Yield Components in NERICA Mutant Rice Lines under Rainfed Conditions
Journal Title: Journal of Experimental Agriculture International - Year 2017, Vol 16, Issue 1
Abstract
Morphological and yield related traits of 31 genotypes were studied to ascertain the genetic and phenotypic correlations among some morphological traits and contribution of these traits to the yield under rainfed conditions directly and indirectly in NERICA mutant rice lines. Field experiment was conducted during the winter season of 2014 at the experimental field of Biotechnology division in Bangladesh Institute of nuclear agriculture (BINA), Mymensingh. The experiment was lay in a randomized complete block design with three replications. The genotypes differed significantly for all the traits viz., days to flowering (1st, 50%, 80%), days to maturity, plant height, total tillers and effective tillers hill-1, filled and unfilled grains panicle-1, 100-seed weight (g) and yield plant-1 (g). The results indicate that plant height (0.422*and 0.426*), total tillers hill-1 (0.663**and 0.669**), effective tillers hill-1 (0.734**) and filled grains panicle-1 (0.525**and 0.530**) showed positive and significant association with yield per plant under rainfed conditions at both phenotypic and genotypic levels; whereas, days to maturity (-0.554** and 0.574**) had significantly negative correlation with yield. Higher phenotypic correlation values for all traits indicated that the environmental effects on traits are high under rainfed conditions. Plant height, total tillers hill-1, effective tillers hill-1, panicle length, filled grains panicle-1 and 100-seed weight showed direct positive effect on yield plant-1 at both genotypic and phenotypic levels. Therefore, these characters would be reliable criteria for improving yield. Higher heritability and genetic advance estimates for all the traits under rainfed condition indicates that these characters can be exploited more efficiently through selection in further generations.
Authors and Affiliations
Md. Nuruzzaman, Lutful Hassan, Shamsun Nahar Begum
Keywords
Related Articles
- EP ID EP315440
- DOI 10.9734/JEAI/2017/32756
- Views 116
- Downloads 0
Effect of Natural Mating Frequency and Artificial Insemination on Fertility in Rabbits and Their Cyto-genetic Profile (X-chromatin)
A study was conducted to determine the cyto-genetic profile of breeding rabbits and the impact of natural mating frequency and artificial insemination on its fertility status. Twenty four (post-pubertal) does aged 8-9 mo...
Analysing the Nexus between Climate Variability and Tomato (Lycopersicon esculentum) Production in the Offinso North District, Ghana
Climate variability which is characterized by rising temperature and rainfall variability is significantly impacting crop yield and livelihoods of farmers. The study analyzed the nexus between climate variability and tom...
Growth and Yield of Sesame (Sesamum indicum L.) as Influenced by Population Density of Component Cowpea in a Sesame-cowpea Mixture
Aim: To study the effects of population density on the growth and yield of sesame (Sesamum indicum L.) intercropped with cowpea (Vigna unquiculata L. Walp). Materials and Methods: A field trial was carried out at the Te...
Varietal Response of Maize (Zea mays) to Integrated Nutrient Management of NPK and Chicken Manure Amendments
Two field experiments were conducted for two years at the Multipurpose crop nursery, University of Education, Winneba, Mampong-Ashanti from May to August, 2015 and 2016 respectively to evaluate varietal response of maize...
Beans Genotypes (Phaseolus vulgaris L.) of the Black Group in the Cerrado Environment, Brazil
Beans are considered one of the most economically important agricultural crops in Brazil. However, the country is not yet self-sufficient in this crop, importing still about 10% of the beans consumed. The objective of th...