Interrelationships among Grain Filling,Milling Quality in Wheat and Nitrogen Fertilizer Application

doi:10.7668/hbnxb.2010.04.048

Abstract

Abstract: In order to understand the interrelationship between grain filling and milling quality in winter wheat ， Two winter wheat cultivars，Yumai49-198 and Aizao8 were planted at Henan Agricultural University Research Station during 2004－2006 under different amounts of nitrogen application. The results indicated that during the course of wheat grain filling ，the process of grain filling presented a shape of " S" and curve equation were used to describe the grain filling process，but all the parameters of the model were different at in different treatments. The parameters of grain filling for Aizao8 attained the highest value in N3(270 kg / ha) treatment. The duration of grain filling ，the appearance time of maximum rate of grain filling，the maximum rate of grain filling，and effective duration of grain filling occurred the highest value in N2(180 kg / ha) treatment for Yumai49-198. The correlation analysis between parameters of grain filling and milling quality traits showed that most parameters of grain filling were significantly correlated with milling quality traits. Multiple regression equation between parameters of grain filling and milling quality traits were reasonable and practicable.

Key words: Wheat, Grain filling, Parameters, Milling quality, Nitrogen fertilizer

CLC Number:

S512.01

MA Dong-yun, GUO Tian-cai, SONG Xiao, YUE Yan-jun, CHA Fei-na. Interrelationships among Grain Filling,Milling Quality in Wheat and Nitrogen Fertilizer Application[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(4): 226-230. doi: 10.7668/hbnxb.2010.04.048.

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