Some early rice hybrids derived from K17eA or e-type early hybrid rices,have been developed and they performed better than the controlled varieties or hybrids in yielding ability,grain quality and disease resistances in regional trials of Jiangxi Province.

A series of e-type hybrid rice combinations had been bred using K17eA as female parent,in which two had passed examination in Jiangxi province.

e You 27 is a new e-hybrid rice combination derived from Fu eA7,a new CMS line with eui genes,and a strong restorer line Shuhui 527.

Studies on the combining ability of quality characters in early hybrid rice;

Effect of nitrogen distribution, planting density, and transplanting methods on the yield of early hybrid rice T You 7889;

Six early hybrid rice combinations were divided into two maturing groups: early group and late group,and a comparison was conducted on the growth and developmental process and yield characteristics between these two groups.

Study on the growth and development characters of dry nursery seedlings and their regularities of yield formation in hybrid early rice Ⅲ. Characteristics of tillering and earing of dry nursery seedlings;

A Study on the Characteristics of the Root System of the Dry Breeding Hybrid Early Rice Seedlings;

This paper summarizes the progress of the research on the relationship between yield and characters of hybrid early rice, Characters include plant height, data of yield, panicle number, total grain number per panicle, filled grain number per panicle, 1 000-grain weight, seed setting rate eight, The prospect and urgent problems to be solved need be discussed.