Abstract: The over high parent heterosis of spike traits of 30 hybrids in wheat（Triticum aestivum L.） was analyzed, and the relation among spike traits of 60 parents was also analyzed. The results showed that there was over high parent heterosis of grain weight per spike, grain number per spike, panicle length, total spikelets number and effective spikelet number in all 30 hybrids, and the over high parent heterosis of grain number per spike and effective spikelet number was significance at the 0.01 level. There were highly significant correlation among the spike traits in hybrids and parents. And there were highly significant correlations between kernel number per spike and grain weight per spike, kernel number per spike and total spikelets, kernel number per spike and effective spikelet number, grain weight per spike and spike length, grain weight per spike and total spikelets number, grain weight per spike and effective spikelet number, spike length and total spikelets number, spike length and effective spikelet number, total spikelets number and effective spikelet number.

Key words: wheat （Triticum aestivum L.）, spike traits, over high parent heterosis, correlation analysis