杂种的

Heterosis in cotton is noticeable and has been widely used in cotton production.

棉花的杂种优势明显，已在生产上广泛利用。

So,it isimpoortant to predict and evaluate the heterosis in theory and practice.

在肉牛生产中，杂交是获得最大产出率的手段之一，因而预测和评估杂种优势在理论和实践上均具有很大意义。

The results obtained in this study will be helpful for further elucidating mechanism of heterosis.

这为进一步深入探讨杂种优势形成机理奠定了一定的基础。

Results indicated that both positive and negative heterosis existed in all the 8 characters.

结果表明，不同生态类型间杂种 F1 各性状的优势有正有负。

Genetically engineered male sterility is one of the important methods to better use heterosis in crops.

利用基因工程创造雄性不育是更广泛地利用作物杂种优势的重要途径之一。

The progress of the biotechnology provides the opportunity to elucidate the mechanism of heterosis in genome level.

生物技术的发展为直接在基因组水平上研究杂种优势机理提供了基础。

However, no significant correlations between genetic distance and traits or their heterosis were found.

但品系间遗传距离与各性状及其杂种优势率之间没有显著的相关关系。

Kenaf is one of the most important fibre crops, with obvious heterosis.

红麻是一种重要的纤维作物，杂种优势显著。

The Heterosis Utilization is the important method of raising the rapeseed production level.

杂种优势利用是提高油菜产量水平的重要手段。

Utilization of heterosis in rapeseed is an efficient path to enhance yield,improve quality,and to strengthen resistance.

杂种优势利用是提高油菜产量、品质和抗性的有效途径。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。