Nitrogen fertilizer at heading stage effectively compensates for the deterioration of rice quality by affecting the starch-related properties under elevated temperatures

Tang, She; Zhang, Haixiang; Liu, Wenzhe; Dou, Zhi; Zhou, Qinyang; Chen, Wenzhu; Wang, Shaohua; Ding, Yanfeng

doi:10.1016/j.foodchem.2018.10.137

Cited by 111 publications

(103 citation statements)

References 31 publications

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“…Starch granule size was affected by N fertilization. High N rates and N application at late growth stages induced the development of small starch granules in rice. Nevertheless, rice starch granule size was unaffected by N rates .…”

Section: Resultsmentioning

confidence: 99%

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Effects of Nitrogen Rates on the Physicochemical Properties of Waxy Maize Starch

Wang

Wen

et al. 2019

Starch Stärke

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Appropriate nitrogen fertilization is essential for improving grain yield and starch quality, while reducing N fertilizer costs. The starch physicochemical properties of two waxy maize hybrids, namely, Suyunuo5 (SYN5) and Yunuo7 (YN7), under N rates of 0 (zero N application [N0]), 150 (low N rate [LN]), 225 (moderate N rate [MN]), and 300 (high N rate [HN]) kg ha -1 are elucidated. Grain starch content initially increases, peaks at MN, and decreases as N rate is increased. N fertilization reduces the starch granule size of YN7. The starch granule size of SYN5 increases under MN. SYN5 exhibits high short/long amylopectin chain ratios under LN and MN. The short/long amylopectin chain ratio of YN7 is unaffected by MN but is increases by LN and HN. The swelling power of YN7 is similar among different N levels, whereas that of SYN5 increases under N fertilization. N fertilization changes starch pasting and thermal properties. Starch with large granules exhibit high trough, final, and setback viscosities and gelatinization temperatures. Starch with high long-chain ratios is susceptible to retrogradation. In conclusion, appropriate N application (225 kg ha -1 for SYN5 and 150 kg ha -1 for YN7) favors starch accumulation, and starch has high viscosity and low retrogradation tendency.

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Section: Resultsmentioning

confidence: 99%

“…High N rates induce the production of small starch granules, high relative crystallinity and swelling power, and low degrees of order over a short‐range scale . Applying high N rates during the later growth stages increases the ratio of small starch granules and reduces amylopectin branching degree and starch crystallinity . Gous et al .…”

Section: Introductionmentioning

confidence: 99%

Effects of Nitrogen Rates on the Physicochemical Properties of Waxy Maize Starch

Wang

Wen

et al. 2019

Starch Stärke

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“…2). Tang et al 32 found that temperatures during grain development had a significant effect on the accumulation of amylose and amylopectin. Kato et al 14 . reported that the higher temperature decreased the apparent amylose content and increased the ratio of short to long chains of amylopectin.…”

Section: Discussionmentioning

confidence: 99%

Seed filling under different temperatures improves the seed vigor of hybrid rice (Oryza sativa L.) via starch accumulation and structure

Wang

Zheng

Tang

et al. 2020

Sci Rep

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Seed filling is crucial for seed vigor and starch accumulation and structure. Differences in hybrid rice seed vigor were evaluated in field experiments, conducted across two sites in 2017 and 2018, under different seed filling temperatures along with the underlying mechanisms related to the seed filling characteristics and starch accumulation and structure. Significant differences in the seed vigor parameters were revealed, with different seed filling characteristics observed under different temperatures. When averaged across cultivars, the seeds with a low seed filling rate and long seed filling duration obsessed 11.9% higher germination percentage (GP) and 22.7% higher vigor index (VI) than those with a high seed filling rate and short seed filling duration. Moreover, a high seed filling rate and short seed filling duration significantly decreased the total starch and amylose contents and increased the amylopectin content. Additionally, when averaged across cultivars, the relative crystallinity and starch granule diameter obtained with a high seed filling rate and short seed filling duration were 3.8% and 15.1% higher, respectively, than those with a low seed filling rate and long seed filling duration. In summary, it can be speculated that seed filling characteristics determine hybrid rice seed vigor by affecting starch accumulation and structure. Rice (Oryza sativa L.) is one of the most important crops in China. With increasing human populations and decreasing areas of agricultural land, the promotion of rice production, especially hybrid rice production, is essential in China 1. Seed vigor, which refers to the potential of seed to germinate rapidly and uniformly under a wide range of field conditions, is an essential requirement for agricultural production 2,3. Vigorous seeds of hybrid rice, which are characterized by a fast germination, high gemination percentage and uniform seedling growth, are beneficial for increasing grain yields and profits for farmers 2. In contrast, the hybrid rice seeds with low seed vigor would result in poor crop establishment and lead to great yield losses, suggesting that the seed vigor plays a vital role in the realization of hybrid rice productivity. The seed vigor of hybrid rice can be determined by several factors including seed filling, which is characterized by the duration and rate of seed filling 4. The filling speed of hybrid rice seeds is initially slow, then a rapid filling phase occurs, and then growth slows again with maturity 5. Previous studies have reported that the grain growth of hybrid rice is associated with certain grain filling characteristics 6,7. A high seed filling rate and short seed filling duration limit grain growth and development and contribute to the losses of grain weight and seed yield 7-10. Moreover, Abayawickrama et al. 11 and Liu et al. 12 found that grain quality was affected by grain filling characteristics formed under different temperatures. Therefore, seed filling influences seed growth and development and ultimately affects the seed qu...

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“…The application of fertilizer plays a crucial role in improving rice yield and is also a key factor affecting rice quality [10]. Studies have shown that different fertilizer types, as well as fertilization modes and rates directly affect rice yield and quality [11][12][13]. The rice-crab culture system is no exception.…”

Section: Introductionmentioning

confidence: 99%

Effects of different fertilization modes on rice yield and quality under a rice-crab culture system

Zhao

Liang

et al. 2020

PLoS ONE

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Rice-crab culture is the characteristic rice ecological breeding model used in the Panjin area of Liaohe River Basin, China, and it can improve the ecological environment and create increased economic benefits. From a food perspective, both rice yield and quality, which are closely related to the fertilization mode, should be considered. However, the effect of different fertilization modes on rice quality has not been comprehensively investigated in this coculture system. This study investigated the effects of three fertilization modes(FP1, FP2, and OPT) divided according to different fertilization types and methods on rice yield and quality, and set up a non-fertilized control group. In the rice-crab culture system, FP2 used fewer fertilizers and had a lower economic cost, and the yield was only slightly less than that of OPT(highest yield) but there was no statistical difference. FP2 elicited the best appearance quality and better cooking and eating quality among all treatment modes. Compared with CK, three fertilization modes significantly increased the protein content in rice and decreased the amylose content, which would lead to the deterioration of rice eating quality. However FP2 had the least protein increase and the least amylose reduction. There was no significant change in crude fat and starch content. Therefore, the FP2 fertilization mode was the best choice for the rice-crab culture system, as it significantly improved rice yield and increased rice quality at a relatively low cost.

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Nitrogen fertilizer at heading stage effectively compensates for the deterioration of rice quality by affecting the starch-related properties under elevated temperatures

Cited by 111 publications

References 31 publications

Effects of Nitrogen Rates on the Physicochemical Properties of Waxy Maize Starch

Effects of Nitrogen Rates on the Physicochemical Properties of Waxy Maize Starch

Seed filling under different temperatures improves the seed vigor of hybrid rice (Oryza sativa L.) via starch accumulation and structure

Effects of different fertilization modes on rice yield and quality under a rice-crab culture system

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