Second-degree polynomials equation of maize(Zea Mays L. ) grain yield with both planting density and nitrogen fertilization was established by means of regression analysis.
本文从不同种植密度和施氮量对玉米籽粒产量的影响，建立了二次多项式回归方程。
2
Comparison of regional permeability and translocation across the node and the internode in the etiolated mesocotyl excised from corn Zea mays l.
幼苗中胚轴切段节和节间的通透性和物质运转进行了比较。
3
Effect of different stress on roots activity and nitrate reductase activity in Zea mays L.