玉米杂交种陕资1号的选育及产量稳定性分析

The Breeding and Selection of Corn Hybrid Variety Shanzi No.1 and the Analysis of Yield Stability

陕资１号是用自选玉米自交系８９-１和Ｋ(１２)杂交选育而成。该杂交种具有高产、优质、多抗、适应性广等特点，籽粒产量一般为 ８．２５ ｔ／ｈｍ２，高产田块达１２．００ ｔ／ｈｍ２。通过对多年多点区域性试验产量结果进行稳定件分析，变异系数ｃｖ＝２５．４０，稳定性参数ｂ＝０．８７６，Ｓ２ｄＩ=０.１９３６，结果表明，陕资１号属高产稳产型品种。

Shanzi No.1 was bred by inbred line 89-1 with K_(12), which had high yield and good quality, high resistance as well as wide adaptability. The grain yield normally was 8 250 kg/hm^2 and the highest yield can reached 12 000 kg/hm^2. Through (a sezies of tests in) many places and many years the result of stability analysis of yield were as follows:the variation coefficient c.v=25.4. the stability coefficient b=0.876, S^2d_1=0.193 6. The result showed that Shanzi No.1 belong the good variety with high and stable yield.