| To investigate the effects of ultrasonic seeds and zinc application in base fertilizer on dry matter and
aromatic zinc accumulation properties of inbred aromatic rice in the whole growth period, a field experiment was conducted
with two inbred aromatic rice varieties, Nongxiang18 and Meixiangzhan with materials, and dry weight and zinc
accumulation of stem, leaf and spike in two aromatic rice varieties were detected under zinc treatments and ultrasonic seeds
treatments. The results showed that under the treatment of U+Zn, the dry weight, zinc content and zinc accumulation of
Nongxiang18 and Meixiangzhan were significantly higher than those under the treatment of NU+Zn0. During the rice growth
period, the zinc content in leaf firstly reduced then increased; the zinc content in stem reduced, then increased in Zn0
treatment, while increased-decreased-increased in Zn2 and Zn4 treatments. Zinc content in leaf and stem reached the
highest at tillering stage under Zn0 treatment, while reached the highest at maturity under Zn2 and Zn4 treatments. The
results indicate that ultrasonic seeds and proper zinc fertilizer treatment can increase dry weight, zinc content and zinc
accumulation of various organs during the whole growth stages, high concentration of zinc fertilizers (Zn4) may improve the
ability to absorb zinc at aromatic rice later growth stage. |
