Rafiq, Ch. Muhammad; Rafique, Muhammad; Hussain, Amer; Altaf, Muhammad
March 2010
Journal of Agricultural Research (03681157);Mar2010, Vol. 48 Issue 1, p35
Academic Journal
A study was carried out at Maize Research Station, Ayub Agricultural Research Institute, Faisalabad, Pakistan during 2007-08 to determine the various parameters of genetic variability, and nature of interrelationships among traits affecting maize grain yield. Ten local maize inbred lines were crossed to three testers (F-107, F-131 and F-165) to develop 30 progenies. The parents, testers and crosses were evaluated in RCBD with three replications. Analysis of variability parameters revealed presence of substantial variability for all traits studied. Grain yield, ear length, ear height, 100-seed weight and ear diameter had high GCV estimates with high heritability. Genetic advance was higher for plant height, ear length, grains per row and grain yield. Genotypic correlation coefficient revealed that ear diameter, 100-grain weight, ear length, rows per ear and grains per row significantly correlated with grain yield. Path analysis revealed that highest direct effect on grain yield was exhibited by 100-grain weight followed by grains per row, kernel rows per ear, ear length and ear diameter. Most of the traits exerted their positive indirect effects through 100- seed weight, kernel rows per ear and grains per row.


Related Articles

  • Genetic Parameters and Path Analysis of Yield and its Components in Corn Inbred Lines (Zea mays L.) at Different Sowing Dates. Hefny, Manal // Asian Journal of Crop Science;May2011, Vol. 3 Issue 2, p106 

    The present investigation was carried out to estimate the genetic parameters and path analysis of plant characters measured on 13 inbred lines of corn and evaluated at two sowing dates during the 2009 growing season. The experiment was arranged in split-plot design with three replications. The...

  • RESPONSE OF MAIZE VARIETIES UNDER AGROECOLOGICAL CONDITIONS OF DERA ISMAIL KHAN. Hussain, Nazir; Nadeem, Muhammad Amjad; Aziz, Abdul // Journal of Agricultural Research (03681157);Mar2010, Vol. 48 Issue 1, p59 

    Seventeen maize entries comprising advanced breeding lines and commercial varieties alongwith a check "Soan-3" were evaluated at Agricultural Research Institute, Dera Ismail Khan, Pakistan during 2008. Analysis of variance revealed that maize varieties differed significantly for days to 50...

  • Genetic variability and association analysis in sesame (Sesamum indicum L.). THIRUMALA RAO, V.; BHARATHI, D.; CHANDRA MOHAN, Y.; VENKANNA, V.; BHADRU, D. // Crop Research (0970-4884);Jul-Nov2013, Vol. 46 Issue 1-3, p122 

    Genetic variability, character association and path analysis between yield and its contributing traits were studied in 48 sesame genotypes. Analysis of variance revealed the existence of significant differences among genotypes for all the characters studied. High heritability coupled with high...

  • Dissection of Drought Stess as a Grain Production Constraint of Maize in Iran. Khalily, M.; Moghaddam, M.; Kanouni, H.; Asheri, E. // Asian Journal of Crop Science;Feb2010, Vol. 2 Issue 1, p1 

    The major objective of this study was to assess grain yield and its components in some genotypes of maize under different levels of drought stress. Therefore, eight medium maturity hybrids of maize were evaluated using a split-plot arrangement in randomized complete block design with four...

  • Character Association and Path Analysis in Rice (Oryza sativa L. ) Genotypes. Nandan, R.; Singh, S. K. // World Journal of Agricultural Sciences;Mar2010, Vol. 6 Issue 2, p201 

    The present study was undertaken with the objective to determine the nature and magnitude of variability, degree of association between yield and it`s component characters and their direct, indirect effects on grain yield in rice (Oryza sativa L.). Thirty three genotypes were evaluated for...

  • Variability, Heritability and Correlation Studies in Bean (Phaseolus vulgaris L.) Genotypes. Dursun, Atilla // World Journal of Agricultural Sciences;Jan2007, Vol. 3 Issue 1, p12 

    The aim of this study was to determine the effects of some yield components on yield via path analysis, estimating correlation coefficients and heritability in 21 bean (Phaseolus vulgaris L.) genotypes. Differences between genotypes in yield, leaf area, pod length and width, pod number per...

  • Interrelationship and Path-coefficient Studies for Qualitative Traits, Grain Yield and other Yield Attributes among Maize (Zea mays L.). Selvaraj, Chinnadurai Immanuel; Nagarajan, Pothiraj // International Journal of Plant Breeding & Genetics;2011, Vol. 5 Issue 3, p209 

    In an attempt to study the association of different agronomic traits in improving qualitative and quantitative aspects of maize correlation studies and path analysis were done. Association studies indicated that characters like plant height, ear height, ear length, ear girth, number of grains...

  • GENETIC VARIABILITY AND ASSOCIATION ANALYSIS IN RICE. Rao, V. Thirumala; Mohan, Y. Chandra; Bhadru, D.; Bharathi, D.; Venkanna, V. // International Journal of Applied & Pharmaceutical Biotechnology;Apr-Jun2014, Vol. 5 Issue 2, p63 

    Genetic variability, character association and path analysis between yield and its contributing traits were studied in 49 Rice cultures. Analysis of variance revealed the existence of significant differences among genotypes for all characters studied. The magnitude of PCV and GCV was moderate to...

  • GENETIC ANALYSIS OF AGRONOMIC TRAITS IN CORIANDER. MEENA, Y. K.; JADHAO, B. J.; KALE, V. S. // SABRAO Journal of Breeding & Genetics;Dec2014, Vol. 46 Issue 2, p265 

    Coriander (Coriandrum sativum L.) is an annual spice herb that belongs to the family of Umbelliferae. The investigation was undertaken to assess the extent of genotypic and phenotypic coefficient of variation, expected genetic advance, heritability, genotypic and phenotypic correlation...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics