优质高产早稻优Ⅰ-200的选育及配套技术

Selection of Good Quality and High Yielding You Ⅰ-200 and Pertinent Techniques

文章介绍了优Ⅰ—２００号的选育经过，在区试及示范试种中的产量表现，特征特性及米质，并对这个组合的栽培及繁殖制种提出了技术要点。

In the paper the development of You I--200 and its yield performance. characteristics and grain quality in the regional test.demonstration and trial planting are described.The key points of techniques for its cultivation. multiplication and seed production are also introduced.