In order to investigate the characteristics of water and nitrogen efficient utilization of rice with different types of rice production, using Yongyou 8 and Su10-100 as material. This study aimed at grain setting traits and quality of two types of japonica rice under the site-specific nitrogen management and the whole growth period of moderate dry wet alternate irrigation technology(T1). Compared with the conventional water and fertilizer management(T0), the effective panicles of T1 treatment were decreased, but the grains per spike, seed setting rate, grain plumpness and 1 000-grain weight were increased, the Su10-100 and Yongyou 8 were increased by 6.21%, 1.68%, 3.30%, 9.06% and 2.53%, 13.63%, 8.10%, 10.35%. The results showed that there was no significant difference between T1 and T0 on brown rice rate, milled rice rate, head rice rate; but there was significantly difference between T1 and T0 on chalky rice rate and chalkiness degree. T1 treatment could reduce the amylose content, crude protein content, setback viscosity and gelatinization temperature, increase the gel consistency, peak viscosity, hot viscosity, final viscosity and breakdown viscosity.
GU Jun-Rong-1, JI Hong-Juan-2, HAN Li-Yu-3, DONG Ming-Hui-1 3*, ZHAO Bu-Hong-2, CHEN Pei-Feng-1
. Effects of Different Irrigation and Fertilization Strategies on Grain Setting Traits and Quality of Japonica Rice[J]. China Rice, 2015
, 21(4)
: 44
-48
.
DOI: 10.3969/j.issn.1006-8082.2015.04.008
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