caa a22 4500 378916866 CHVBK 20180305123555.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.2298/hel0441085s doi (NATIONALLICENCE)gruyter-10.2298/hel0441085s VARIABILITY FOR AGRONOMIC TRAITS IN SUNFLOWER RANDOM-MATING POPULATIONS: CORRELATIONS, ESTIMATED GAINS FROM SELECTION, AND CORRELATED RESPONSES TO SELECTION [Elektronische Daten] VARIABILIDAD DE LAS CARACTERÍSTICAS AGRONÓMICAS EN DOS POBLACIONES DE GIRASOL CRUZADAS AL AZAR; CORRELACIONES, BENEFICIO DE SELECCIÓN EVALUADO Y LAS RELACIONES CORELATIVAS EN LA SELECCIÓN / VARIABILITÉ DES CARACTÉRISTIQUES AGRONOMIQUES DE POPULATIONS DE TOURNESOLS CROISÉES AU HASARD; CORRÉLATIONS, PRÉVISION DES GAINS DUS AU CROISEMENT ET RÉACTIONS CORRÉLATIONNELLES DANS LA SÉLECTION / [Waseem Hassan Syed, Sadaqat Mehdi Syed, Shahida Hasnain] Estimated gains from selection and interrelationship among agronomic characters were evaluated in the random-mating sunflower populations Local Open and UAF using data from two seasons (spring and fall). Among 66 combinations of 12 traits included; number of leaves per plant with days to anthesis and head diameter; plant height with seed yield per plant; days to flowering with days to anthesis, days to maturity and head diameter; days to anthesis with days to maturity, head diameter and seed yield per plant; and days to maturity with seed yield per plant showed significant, positive correlations in both sunflower populations during spring. Most often, genetic correlations were slightly higher than their respective phenotypic correlations in UAF sunflower population during spring and fall. But the trend was almost reverse in Local Open during both seasons. Estimates of percentage gain per generation for selection at 20% intensity indicated that this selection would be effective for improving seed and oil yield. The estimated gain for achene yield was 31.33 and 24.38% per generation (Local Open and UAF) when S1 testing was conducted in spring season. Correlated responses to S1 selection for yield and the components of yield indicated that indirect selection for achene yield and oil yield would be effective. Direct selection for yield was estimated to result in favorable increases in all yield components. This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. sunflower nationallicence random matting population nationallicence agronomic traits nationallicence selection and breeding nationallicence statistical analysis nationallicence Syed Waseem Hassan Department of Botany, University of the Punjab, Lahore, Pakistan aut Syed Sadaqat Mehdi Virtual University of Pakistan, Lahore, Pakistan aut Hasnain Shahida Department of Botany, University of the Punjab, Lahore, Pakistan aut HELIA De Gruyter 27/41(2004-12-01), 85-98 1018-1806 27:41<85 2004 27 helia https://doi.org/10.2298/hel0441085s text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.2298/hel0441085s text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Syed Waseem Hassan Department of Botany, University of the Punjab, Lahore, Pakistan aut NATIONALLICENCE 700 1- Syed Sadaqat Mehdi Virtual University of Pakistan, Lahore, Pakistan aut NATIONALLICENCE 700 1- Hasnain Shahida Department of Botany, University of the Punjab, Lahore, Pakistan aut NATIONALLICENCE 773 0- HELIA De Gruyter 27/41(2004-12-01), 85-98 1018-1806 27:41<85 2004 27 helia CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter