To understand the effect of nitrogen（N） fertilizer on rice（Oryza sativa L.） eating and cooking quality（ECQ）. Here, we investigated the ECQ attributes, physicochemical foundation of ECQ, and amylopectin fine structure of two Waxy（Wx） alleles japonica rice cultivars Nanjing 9108（NJ9108） and Huaidao 5（HD5） under four N rates(0, 150, 300, and 450 kg ha^–1). Sensory and pasting properties of the two cultivars varied depending on N rates. Compared with the control(0 kg ha^–1), the ... 

【文章來源】：Journal of Integrative Agriculture. 2020,19(04)SCICSCD

【文章頁數(shù)】：11 頁

【文章目錄】：
1. Introduction
2. Materials and methods
    2.1. Plant materials and experiment design
    2.2. Identification of the Wx alleles of the cultivars NJ9108 and HD5
    2.3. White rice kernel,flour,and starch preparation
    2.4. Sensory panel and evaluation
    2.5. Physicochemical characteristics(PC)measure-ment
    2.6. Quantitative reverse transcription polymerase chain reaction(qRT-PCR)analysis
    2.7. Statistical analysis of the data
3. Results
    3.1. Sensory properties of the two Wx alleles japonica rice cultivars under four N rates
    3.2. Pasting properties of flour from the two Wx alleles japonica rice cultivars under four N rates
    3.3. Physicochemical characteristics of rice flourin the two Wx alleles japonica rice cultivars under four N rates
    3.4. Thermal properties of starch in the two Wx alleles japonica rice cultivars under four N rates
    3.5. Chain length distribution(CLD)of amylopectin from the two Wx alleles japonica rice cultivars under four N rates
    3.6. Expression profiles of amylopectin synthesisrelated genes in the rice endosperm under four Nrates
4. Discussion
    4.1. Excessive nitrogen application decreases rice palatability mainly by reducing the stickiness and retrogradation of the cooked rice
    4.2. Excessive nitrogen application decreases rice palatability associated with the increased PC and altered amylopectin CLDs
    4.3. The effects of N fertilizer and genotype on amy-lopectin synthesis
5. Conclusion


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期刊論文
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