大麦芒的作用初探

本试验对大麦进行了六种剪芒处理的研究。结果表明，大麦的芒对大麦籽粒产量的贡献卓越，其贡献大小因品种而异，一般来说，长芒大麦＞短芒大麦、多棱大麦＞二棱大麦；芒在从大麦抽穗到成熟的各段时期内的贡献大小不一；二棱大麦麦穗一侧的芒对另一侧的籽粒产量不作贡献；剪芒对大麦结实率无显著影响。

Preliminary Study on Functions of The Barley Awn

By six handling metheds, the study on cutting the awns of barley valleties was made. The resuIts revealed that the bar1ey awn devoted distinguished contribution to grain vield, which varied with barley varieties, ie long - awn barley more than short - awn barley and multi - rowed barley more than two - rowed barley; The benefits of the barley awn devoted to grain yield were not equal at different stages of the barley growth period from earing to maturity; The awns on one side of an ear of two - rowed barley had no contribution to the grains on other side of the same one;There were insignificant effects on the fertility rate by cutting barley awn.