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Acta Agron Sin ›› 2006, Vol. 32 ›› Issue (03): 466-468.

• RESEARCH NOTES • Previous Articles     Next Articles

Effects of Uniconazole on Nitrogen Distribution and Grain Protein in Late Growing Stage of Wheat with Different Planting Densities

HAN Hui-Fang; YANG Wen-Yu; LI Zeng-Jia and GUAN Hua   

  1. College of Agronomy, Sichuan Agricultural University, Ya’an 625014, Sichuan
  • Received:2005-01-02 Revised:1900-01-01 Online:2006-03-12 Published:2006-03-12
  • Contact: YANG Wen-Yu

Abstract:

The experiment was conducted with seed dressing of uniconazole (S-3307) with different concentrations (0, 10, 20 and 40 mg/kg) and different planting densities(90×104,180×104 and 270×104/ha) in late growing stage of wheat Mianyang 26(cv). The results showed that the contents of nitrogen accumulated in ear, culm and leaf were more in S-3307 treatments than in control, and the effect of S-3307 on main stem was bigger than that on tiller. The grain protein was significantly higher in S-3307 treatments than in control. With the increase of S-3307 concentration, the contents of albumin and globulin were significantly increased, which the effect of 20 mg/kg S-3307 (B3) was the best, and the contents of gliadin and glutenin also increased. It suggested that the grain protein is regulated through nitrogen source regulation by S-3307.

Key words: Uniconazole (S-3307), Wheat, Planting density, Nitrogen distribution, Grain protein

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