玉米壮苗剂的生物学效应与增产效果初探

本文探讨了壮苗剂对玉米苗期生长发育的影响及其增产效果，结果表明：壮苗剂具有控上促下的作用，一方面促进玉米幼苗根系的生长发育，增加根系体积和平重；另一方面延缓地上部生长，使苗高降低，基部增粗，叶片变宽、短、厚，叶包加深，培育出矮壮健苗，促进植株生长发育，提高产量6％－17％，并表现一定增强玉米抗旱力作用。以35-50ppm浸种或100ppm拌种较好。

A PRELIMINARY STUDY ON THE EFFECT OF SEEDLING STRONGAR ON MAIZE

The effect of Seedling Strongar on the seedling growth and yieldof Maize was preliminarily studied- The reaults Showed as follows: SeedlingStronger promoted the root growtb of seedling, inoreased the volume and dryweight of roots and therefore increased its absorption function. It retarded theshoot growth of seedling, deereased the Flant height and leaf length, increasedthe width and thickness of leaf, and concentrated the leaf eolor. As a result, itdecreased the grainless length in ear top, increased grain number ler row andgrain yield. It should be pract ised with 35-50ppm in seed soaking or 100ppm inseed dressing.