Experiments were carried out in randomized complete block design with four replications, for three successive years between 2000 and 2003 years, under the conditions of Kahramanmaras province, located in East-Mediterranean region of Turkey. In the research, phenological periods such as VP, GFP, days to maturity (DM) by the thermal times, GY were measured. HR values over thermal times were also calculated by the formula HRtt = GFPtt/VPtt..
According to the results, cultivars were significantly different for VPtt, GFPtt, DMtt by the thermal times and GY. Cultivars were also significantly different for HR. Harmonization ratio was determined as 0.512 for Fuatbey-2000 cv. which supplied the highest GY. On the other hand, the lowest HRtt was obtained from Altar-84 STN cv. with 0.458 and its GY was also the lowest. Harmonization ratio was significantly and positively correlated with GY over the average results of 3 years. Significant correlations determined between GY and HRtt showed that this HRtt value might be considered as useful character on determination of wheat cultivars having balanced VPtt and GFPtt for higher GY. Thus, the varieties with the lowest HRtt may be excluded from the nurseries, in the early generations of breeding works. 相似文献