1.The results clearly indicated that epistasis was one of important genetic factors in heterosis of the superb hybrid Shanyou63.
此结果表明，上位性是该组合杂种优势的重要遗传基础之一。
2.Heterosis is a common phenomenon and has been used to increase yield and to improve quality in crops.
杂种优势是生物界普遍存在的一种现象，利用杂种优势是提高作物产量，改良作物品质最为有效的一种途径。
3.Combination between ideal plant type and heterosis is one of the important approaches to increase yield of rice in unit area.
理想株型与杂种优势利用相结合是实现水稻单产突破的重要途径之一。
4.The correlation between the genetic distance of the aromatic rice parents selected and the yield heterosis was not significant.
结论所选用的杂交水稻亲本间的遗传距离大小并不能反映杂种优势；
5.The result showed that strains with low yield were clustered to one group, indicating that ISSR can be used to forcast the heterosis.
结果显示产量较低的菌株聚为一组，表明可以用ISSR分子标记预测杂种优势。
6.The result of cross test showed that restorer was easily to be obtained and F1 presented heterosis.
测恢试验的结果表明，恢复系较易找到，并有杂种优势。
7.A parabolic correlation between the indica-japonica differentiation of parents and heterosis of hybrid rice was detected by RAPD markers.
结果表明，亲本籼粳差异与产量杂种优势存在抛物线的关系。
8.Heterosis as a common biological phenomenon in nature is an efficient approach to increase crop yield.
杂种优势作为自然界一种普遍的生物学现象，是提高作物产量的一种有效途径。
9.High purity parents, strong heterosis combination, low cost seed production are the key factors of application of wheat heterosis.
在亲本和强优势组合选育取得突破后，杂交种生产成为杂种小麦应用的重要制约因素。
10.The heterosis of weak light tolerance of eggplant can be used to produce F1 hybrids by crossing the parents with weak light tolerance.
可充分利用茄子耐弱光性的杂种优势，选择耐弱光性好的亲本，配制F1杂交组合用于生产。