杂交稻脯氨酸含量上升的趋势大于常规稻。

The increase of proline content in hybrid rice was more than that in traditional rice.

介绍了信阳地区灾害性天气发生规律及其对杂交稻制种的影响，并提出了应对措施。

The regularity of unfavourable weather and its effect on hybrid rice seed production are introduced, and the corresponding technical countermeasures are pointed out.

本文研究了拔节期施用多效唑对籼粳杂交稻的株高和产量的影响。

The effect of PP333 applied at elongation stage on plant height and yield of indica-japonica hybrid rice was studied.

比较了在不同插秧量和行距配置方式下杂交稻和常规稻的产量及其构成因素。

A comparison of yield and its components between hybrid rice and conventional rice varieties was made with different seedling quantity and row spacing at transplanting.

珍汕97A、 协青早A的一般配合力高，是配制迟熟杂交稻组合的主体不育系。

The general combining ability of Zheng shan97A and Xieqin Zao A is high . They are main sterile lines for breeding of late hybrid rice combinations.