sterile seed

Its critical sterility inducing temperature ( CSIT) was low at about 23.5 ℃. Grown in Hefei, it had a long stable sterile period over 30 days with 100% sterile plant rate, 99.99% pollen sterility rate and no bagged selfed seed set.

2301S不育株率100%，花粉败育率99.99%，套袋自交不实率100%，不育起点温度较低，在合肥不育期30d以上；

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The Study of the Technique of Purifying the Dian-1 Type Hybrid Japonic Sterile Line Stock Seed

滇Ⅰ型粳稻不育系原种提纯技术研究

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For open entomophilous pollination percentage of Bt transgenic sterile lines was higher than that of general one, their seed yield before frost increased significantly.

转Bt基因不育系昆虫自然授粉率比常规不育系大幅提高。

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However, some plants of the same genotypes showed different fertility under the three temperatures, the plants showed selfed seed setting below twenty per cent under 30 degree centigrade, and 55.6 and 33.4 per cent of them were sterile under 27 and 24 degrees centigrade; respectively.

部分同一基因型植株在3种温度下育性表现不同。30℃下自然结实率＜20%的植株，仅有55.6%在27℃下表现不育，33.4%在24℃表现不育。

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In search of new rice idioplasm resource was cried for the research of two-line hybrid rice according to the techno-thought of "revers genic sterile rice", so that the potential risk of two-line hybrid rice seed production could be eliminated radically.

在两系法杂交水稻的研究领域迫切需要按照反向核不育的技术思路寻找新的种质资源，以便从根本上消除两系杂交稻制种过程中的潜在风险。

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