Current progress and prospect of crop quality research

Deng, Z.; Qu, Le-Qing; Wu, Yongrui; Zhang, Jingsong; Wang, Tai

doi:10.1360/ssv-2021-0223

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…It is important to identify any possible dependent or independent relationships between grain quality and grain yield to inform maize breeding strategies (Li et al, 2016). Many previous studies documented that the starch concentration, as the main storage material for the endosperm of maize, was positively correlated with maize grain yield, and it was just the opposite of protein (Alves & Filho, 2017;Deng et al, 2021;Sun et al, 2014). However, no significant correlations between the starch and protein concentrations and grain yield were observed at the large spatial scale.…”

Section: Discussionmentioning

confidence: 99%

“…(Alves & Filho, 2017; Ort & Long, 2014). Grain quality is an important economic trait that directly determined the market price and application value of maize (Deng et al., 2021). Nowadays, with the continuous transformation and upgrading of food consumption structure, maize production is gradually transforming from high yield to high quality and high yield in China (Deng et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

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Spatial distribution of maize grain quality and its influence by climatic factors across China

et al. 2023

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Maize (Zea mays L.) grain quality is an important economic trait directly determining the market price and application value of maize. In this study, maize grain starch, protein, oil, fiber concentrations, and bulk density were investigated based on a multi‐site experiment across China to determine the regional distribution trend of grain quality and its influencing factors. It showed that the mean starch, protein, oil, fiber concentrations, and bulk density in China were 73.4%, 9.5%, 4.2%, 3.6%, and 77.2 kg hL−1, respectively. Overall, each nutritional composition concentration did not show the same spatial distribution as grain yield that was in the order of Northwest (NW) > North (NM) > Huanghuaihai (HM) > Southwest (SW) maize region. The starch and protein concentrations were highest in SW and HM, respectively. The oil concentration was lowest in NW. The interregional difference in bulk density was not significant. As for cultivars, the starch and oil concentrations of ZD958 were higher than that of XY335 in each region, but the protein, fiber concentrations, and bulk density appeared to be the opposite trend. Correlation analysis indicated that the fiber concentration and bulk density were positively correlated with grain yield. The protein, oil, and fiber concentrations were negatively correlated with starch concentration. Among the considered climatic factors, the protein, fiber concentrations, and bulk density were mainly positively affected by temperature factors in China. The results provide a reference for the division of maize advantageous quality regions and the construction of high‐yield and quality technology model in typical ecological regions.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatial distribution of maize grain quality and its influence by climatic factors across China

et al. 2023

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“…With the improvement in rice varieties, the nitrogen in rice grains was gradually reduced, and the quality of starch was improved [4]. The nitrogen utilization efficiency of japonica rice is lower than that of indica rice, and the continuous excessive nitrogen fertilizer input in japonica rice production leads to resource and energy waste and causes ecological and environmental problems [5,6]. After several decades of genetic improvement, erect-panicle japonica rice had a more positive effect on yield, harvest index, and the size of sink [7]; the recently developed erect-panicle-type varieties have significantly improved in grain set and quality with a high yield potential, surpassing the generally curved-panicle-type varieties (loose-or sparse-panicle types) [2].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Erect-Panicle Japonica Rice in Northern China: Yield, Quality Status, and Quality Improvement Directions

Yan,

Jiang,

et al. 2024

Plants

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China is the only country that extensively cultivates the indica and japonica rice varieties, with the largest japonica rice production area being in northeast China. A study of the relationship between the yield and quality of japonica rice and the effect of nitrogen fertilizer application on this relationship is important. In this paper, we aimed to assess the current yield and quality of japonica rice in northeast China. We selected erect-panicle varieties as the test materials. Field experiments were conducted using different nitrogen fertilizer levels for two consecutive years to analyze the rice varieties’ yield, quality, interrelationship, and nitrogen fertilizer response. The average yield following high- and low-nitrogen treatments exceeded 10,000.00 kg/hm2, with a maximum of 12,285.63 kg/hm2. The high-yield–high-nitrogen treatment group had more panicles, a higher seed-setting rate, and a higher 1000-grain weight than the other groups. The high-yield–low-nitrogen group had a higher number of panicles and seed-setting rate than the other groups. The low-yield–high-nitrogen group had a lower number of whole grains, grain length-to-width ratio, and taste value than the other groups. The low-yield–low-nitrogen group had fewer primary branches than the other groups; excluding the primary branch-setting rate and 1000-grain weight, the values of the other panicle traits of the group were significantly higher than those of the other groups. The high-nitrogen–high-flavor group had lower panicle and spikelet numbers and higher spikelet fertility rates than the other groups. The low-nitrogen–high-flavor group had higher spikelet fertility rates and 1000-grain weight than the other groups. Compared to the other groups, the low-nitrogen–high-flavor group had a higher head rice yield, and the high-nitrogen–high-flavor group had a lower chalkiness rate. The main goal of the breeding and cultivation of high-yield and high-quality erect-panicle japonica rice in northern China is to achieve “dual high, dual low, and one high and one low” conditions, signifying a high yield with high or low nitrogen levels, low protein and amylose contents, high head rice rates, and low chalkiness. This study provides a new technique for enhancing the taste of northern erect-panicle japonica rice to promote the sustainable, high-yield, and high-quality development of japonica rice in northern China.

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“…Grain quality is another key economic trait that is crucial in maize production and directly determines the market price and application value of maize [32]. Maize grains with high bulk density are generally considered to be high-quality [33].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Maize Grain Weight and Quality during Field Dehydration and Delayed Harvesting

Zhao

Wang

et al. 2023

Agriculture

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Dehydration of maize grains in the field can reduce costs associated with drying after harvest. A delayed harvest approach after physiological maturity, in which plants stand in the field to allow the stems to dry, has been widely adopted in maize production. However, it remains unclear how harvesting at different time points during the dehydration stage may affect grain yield and quality. In the present study, experiments were conducted in the Ningxia Irrigation Area of northwest China from 2019 to 2022, we continuously observed and used a linear-plateau model to analyze the changes in grain weight and quality traits (such as bulk density and levels of starch, protein, oil, fiber, and free fatty acids) during the field dehydration period of maize hybrids with differing maturity times. Harvesting at a grain moisture content of >31.0% was shown to affect grain weight, whereas harvesting at a moisture content of <25.9% did not affect grain weight or yield. The stable period for grain weight occurred during the physiological maturity stage for an early-maturing hybrid and 5–12 days before physiological maturity for the mid–late-maturing hybrids. When the field grain moisture content was <37%, harvesting did not affect the grain bulk density. Grain bulk density tended to stabilize one to two weeks earlier than grain weight and two to three weeks before the physiological maturity period. The protein, oil, fiber, and free fatty acid contents in maize kernels at 30 days after silking were not affected by the harvesting period, and the starch contents were unaffected in maize kernels harvested at any time later than 50 days after silking. Overall, maize grain should be harvested during field dehydration and delayed harvesting after physiological maturity with relatively low moisture content to get a better yield with superior quality.; delayed harvesting is therefore an important technical approach to improve the efficient production of high-quality maize.

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Current progress and prospect of crop quality research

Cited by 5 publications

References 16 publications

Spatial distribution of maize grain quality and its influence by climatic factors across China

Spatial distribution of maize grain quality and its influence by climatic factors across China

Analysis of Erect-Panicle Japonica Rice in Northern China: Yield, Quality Status, and Quality Improvement Directions

Dynamics of Maize Grain Weight and Quality during Field Dehydration and Delayed Harvesting

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