Quality Characteristics of Japonica Rice in Southern and Northern China and the Effect of Environments on Its Quality

Ma, Zhongtao; Ma, Huizhen; Chen, Zhifeng; Chen, Xinyi; Liu, Guodong; Hu, Qun; Xu, Fangfu; Wei, Haiyan; Zhang, Hongcheng

doi:10.3390/agronomy12112757

Cited by 5 publications

(6 citation statements)

References 45 publications

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“…In the rice areas of southern China, the growth cycle of ratoon rice from the main crop to the ratoon crop is relatively long, approximately from March to October. During this growing season, the temperature change trend shows an increase first and then a decrease, with a temperature change range of 20-25°C ( Ma et al., 2022 ). Research showed that rice requires specific temperatures during development stages such as tillering, heading and maturity ( Guo-cai et al., 2014 ).…”

Section: Discussionmentioning

confidence: 99%

Difference in Cd accumulation among varieties with different growth duration corresponding to typical agro-climate condition in rice ratooning system

Yuan,

Jiang,

Chen

et al. 2024

Front. Plant Sci.

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IntroductionThe ratoon rice planting area is gradually expanding, but there has been relatively little research on ratoon rice grains contaminated with Cd.MethodsIn this study, five ratoon rice varieties were selected and divided into three groups according to early-maturity (growth duration: 100–110 days), mid-maturity (growth duration: 110–120 days) and late-maturity (growth duration: 120–130 days) varieties. Field experiments were done to study the differences in Cd accumulation among ratoon rice varieties with different growth duration.ResultsThe results showed that the Cd accumulation and concentration of grains spikelet at each growth stage in the main crop were in the order of late-maturity > mid-maturity > early-maturity varieties. However, the trends in Cd concentration and accumulation in grains spikelet during the ratoon crop were the opposite. Analysis found that as the growth duration of the variety extended, the accumulated temperature and daily average temperature in the main crop increased, which significantly increased the translocation factors of Cd from root, stem, and leaf to grains spikelet, and increased the daily average Cd accumulation rate in grains spikelet. The daily average temperature in the ratoon crop increased as the growth duration shortened. The early-maturity variety had higher Cd accumulation in stubble, which promoted the translocation of Cd from the root, stem, and leaf of the plant to the grains spikelet.DiscussionTherefore, appropriately shortening the growth duration of the main crop and extending the growth duration of the ratoon crop are important ways to reduce Cd accumulation in ratoon rice in areas with mild Cd pollution.

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Section: Discussionmentioning

confidence: 99%

Difference in Cd accumulation among varieties with different growth duration corresponding to typical agro-climate condition in rice ratooning system

Yuan,

Jiang,

Chen

et al. 2024

Front. Plant Sci.

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“…Moreover, canopy closure leads to an increase in temperature and humidity within the population, which is not beneficial to stable filling, and is prone to producing starch grain gaps, leading to loose and porous endosperm structures [41,42]. This structure promotes the refraction of light, resulting in an increase in chalkiness at the macro level [43]. Meanwhile, it also tends to make rice fragile, which is not conducive to the processing quality [44].…”

Section: Effects Of Unmanned Aerial Seeding Density and Methods On Ri...mentioning

confidence: 99%

Optimum Basic Seedling Density and Yield and Quality Characteristics of Unmanned Aerial Seeding Rice

Zhu

Zhang

et al. 2023

Agronomy

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Unmanned aerial seeding (UAS) is an efficient unmanned rice planting method with broad application prospects. But its optimum basic seedling number and yield and quality characteristics remain unclear. Field experiments were conducted to compare UAS, unmanned dry direct seeding (UDDS), and unmanned carpet transplanting (UCT) methods using inbred japonica rice variety Nanjing 5718. The UAS method was subdivided into four planting density treatments (UAS105, UAS150, UAS195, and UAS240 = 105, 150, 195, and 240 seedlings/m2, respectively). The results showed that increasing the basic seedling density first increased the yield but then it decreased, and UAS195 produced a significantly higher yield. On the other hand, the grain processing, appearance, and taste quality deteriorated with improved nutritional quality. Among the three planting methods, UAS (UAS195) yielded less than UCT due to there being fewer spikelets per panicle, a lower grain-filling rate, and less photosynthetic activity after heading. However, UAS (UAS195) produced more yields than UDDS by having more panicles, more spikelets per panicle, and more biomass accumulation. Both UAS195 and UDDS had poorer grain processing, appearance, and nutritional quality than UCT, but increased amylose content and taste values. Therefore, UAS195 could be an alternative planting method for inbred japonica rice with coordinated yield, quality, and production efficiency.

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“…The brown rice (BR), the milled rice (MR), and the head milled rice (HMR) rates were estimated based on the National Guidelines of the People's Republic of China (GB/T 17891-2017) [1]. The study employed the rice appearance scanner (MRS-9600TFU2L, Shanghai, China) to assess the chalkiness rate (CHR) and chalkiness degree (CD) of the rice.…”

Section: Determination Of Rice Qualitymentioning

confidence: 99%

“…The taste quality of the prepared rice was assessed using a taste analyzer (STA1A, SATAKE, Hiroshima, Japan), with the 'Japanese japonica rice' preset selection being utilized for the identification line. According to the method of Ma et al [1], the physical properties of cool rice, namely its hardness, springiness, stickiness, and balance, were evaluated using the SMS Texture Analyzer (TA. Xt.…”

Section: Determination Of Rice Qualitymentioning

confidence: 99%

“…According to the National Statistical Yearbook (2021), China's rice planting area was about 29,921 thousand hectares in 2021, ranking second globally, and its total production was about 21,842 million tons, ranking first in the world. Jiangsu Province is the highest japonica rice-producing area in the southern rice area [1]. In the past 20 years, semi-glutinous japonica varieties with outstanding taste quality have been gradually promoted in production and recognized by the public, and 34 varieties with excellent taste had been approved by 2021.…”

Section: Introductionmentioning

confidence: 99%

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Metabolomics Analysis of Variation in Grain Quality of High-Quality Japonica Rice

Shi,

Wang,

et al. 2024

Agronomy

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In recent years, the semi-glutinous japonica rice variety has been extensively utilized in Jiangsu Province to greatly increase rice quality. Nevertheless, the increasing occurrence of seed variation presented a major threat to rice quality. Enhancing the quality of rice grains has emerged as a critical factor in guaranteeing consumer acceptance. Throughout this investigation, five lines (VJ1, VJ2, VJ3, VJ4, and VJ5) selected from the Nanjing9108 population in Liyang were used as research materials, and original cultivars of Nanjing9108 (CKJ1) provided by the original breeder were utilized as control materials to compare rice quality and differential metabolites. VJ4 and VJ3 demonstrated a significant reduction in milled rice rate and head milled rice rate when contrasted to CKJ1. Compared with CKJ1, the amylose content of the five strains was significantly increased. Only VJ3 amplified the 106 bp target band, and its 2-AP content was 0 ng/g. Most metabolites are mainly enriched in cutin, suberine, wax biosynthesis, histidine, and tryptophan metabolism. The primary metabolites throughout the metabolic pathway involve lipids and lipid-like molecules (mono palmitin, alpha-eleostearic, and palmitic acid) and amino acid metabolites (L-glutamate, L-tryptophan, and L-serine). The identification of these key metabolites helps in the discovery of prospective biomarkers for screening seed variation throughout seed production.

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Quality Characteristics of Japonica Rice in Southern and Northern China and the Effect of Environments on Its Quality

Cited by 5 publications

References 45 publications

Difference in Cd accumulation among varieties with different growth duration corresponding to typical agro-climate condition in rice ratooning system

Difference in Cd accumulation among varieties with different growth duration corresponding to typical agro-climate condition in rice ratooning system

Optimum Basic Seedling Density and Yield and Quality Characteristics of Unmanned Aerial Seeding Rice

Metabolomics Analysis of Variation in Grain Quality of High-Quality Japonica Rice

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