%0 Journal Article
%T Uptake and utilization of different nitrogen forms in erect panicle japonica rice cultivar
%A Chen Zhao
%A Jiping Gao
%A Jun Yi
%A Wei Xin
%A Wenzhong Zhang
%A Yanze Zhao
%A Ying Zhao
%A Ziang Li
%J Journal of Plant Interactions
%D 2019
%R https://doi.org/10.1080/17429145.2019.1629036
%X ABSTRACT The response of rice to nitrogen (N) was compared between three rice cultivars and three N treatments: 1:0, 0:1, and 1:1 NH4+:NO3£¿. The three rice cultivars used were: Shennong1401 (SN1401, erect panicle rice cultivar) and Habataki and Sasanishiki (curved panicle rice cultivars). At the booting stage, higher gene expression and enzyme activity associated with N metabolism of rice in the including-NO3£¿ solutions effected the secondary assimilation of N metabolism, and ultimately increased grain development. During the tillering stage, lower NO3£¿ uptake rates and glutamine synthetase and NADH-dependent glutamate synthase activity in Habataki and Sasanishiki under the NO3£¿ treatments resulted in lower effective panicle number per plant. However, no significant differences were observed in the grain yield per plant of SN1401 between NH4+ and NO3£¿ treatments. Our results indicate that the erect panicle rice cultivar can grow better under the including-NO3£¿ treatment
%U https://www.tandfonline.com/doi/full/10.1080/17429145.2019.1629036