Phosphorus application affects lowland rice yields by changing phenological development and cold stress degrees in the central highlands of Madagascar

Andrianary, Bruce Haja; Tsujimoto, Yasuhiro; Oo, Aung Zaw; Rabenarivo, Michel; Ramifehiarivo, Nandrianina

doi:10.1016/j.fcr.2021.108256

Cited by 15 publications

(8 citation statements)

References 48 publications

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“…The application of P accelerates phenology development in both black and white rice, with higher P rates resulting in faster flowering. Phosphorus deficiency delayed heading by 5-16 days, consistent with that reported by other authors (Rakotoarisoa et al, 2020;Andrianary et al, 2021). This is because P plays a critical role in the development of reproductive tissues.…”

Section: Discussionsupporting

confidence: 91%

“…In both black and white rice, P application significantly increased shoot biomass, tiller number, and photosynthetic efficiency, resulting in improved grain yield (Figure 1), as has been reported in many previous studies (Fageria et al, 2013;Taliman et al, 2019;Andrianary et al, 2021;Kurnia, 2021). In this study, varietal difference was observed in the optimal P rate.…”

Section: Discussionsupporting

confidence: 80%

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Optimizing phosphorus management to increase grain yield and nutritional quality while reducing phytic acid concentration in black rice (Oryza sativa L.)

Asai

Kawamura

et al. 2023

Front. Sustain. Food Syst.

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Rice with a black-colored pericarp (hereafter, black rice) has attracted considerable attention because of its high nutritional value. It is traditionally grown in infertile agroecosystems, where soil nutrient deficiency would affect grain yield and nutritional quality of the rice. This study examined the effects of phosphorus (P) application (0, 100, 250, 500, 1,000, and 1,300 mg P2O5 pot−1) on the growth, grain yield, and certain quality parameters of unpolished black (“Asamurasaki”) and white (“Takanari”) rice. The results showed that black rice grew poorly under P limitation, resulting in fewer tillers and a lower grain yield, while maintaining higher photosynthetic efficiency than white rice. However, black rice produced under P stress exhibited higher levels of Zn, Fe, and antioxidant (total phenolic and flavonoid content) than white rice, making it more nutritious. The optimal P application rates for black and white rice were 250 and 500 mg P2O5 pot−1, respectively, to achieve high yields. At the optimal rate, black rice exhibited high Fe, Zn and antioxidant levels compared to that at higher P application rates and had lower phytic acid levels, which could alleviate its inhibition of mineral absorption in the digestive tract. Moreover, low grain P due to P stress decreased the lightness L* value in the CIE-Lab system, improving the visual grain quality. Therefore, optimal P management is crucial for maintaining optimal grain yield with low phytic acid concentration and enhancing the nutritional quality of black rice for human consumption.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 80%

Optimizing phosphorus management to increase grain yield and nutritional quality while reducing phytic acid concentration in black rice (Oryza sativa L.)

Asai

Kawamura

et al. 2023

Front. Sustain. Food Syst.

Self Cite

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“…Therefore, proper change of phenological development through cultivation and management measures to avoid LTS at the early flowering stage can help to reduce the impact of LTS on crop yield and quality. Andrianary et al (2021) has reported that phosphorus application affects lowland rice yields by changing phenological development and reducing cold stress events in the central highlands of Madagascar. In addition, previous studies also have shown that fertilization and irrigation are the two main cultivation practices that regulate rice yield and quality ( Huang et al, 2019b ; Haghighi et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Extreme Low-Temperature Stress Affects Nutritional Quality of Amino Acids in Rice

et al. 2022

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Global climate change has increased the frequency of extreme climate events, and their effects on the nutritional quality, especially on amino acids in rice, have not been quantified. The data from a 3-year low temperature stress (LTS) experiment including two rice varieties (Huaidao 5 and Nanjing 46), seven minimum/maximum temperature levels (one optimal 21/27°C and six LTS levels from 17/23 to 6/12°C), and three LTS durations (3, 6, and 9 days) after flowering, revealed significant interactive effects of LTS at different stages, durations, and temperature levels on the content and accumulation of amino acids. LTS increased rice total amino acid content, while decreasing its accumulation, with higher sensitivities to LTS at the flowering stage than at the grain filling stage. In most treatments, the lysine (the first limiting amino acid) and phenylalanine content were increased under LTS at early and peak flowering stages but decreased at the grain filling stage in both varieties, and only leucine content was increased at all three stages after flowering, while the content of other essential amino acids differed among the two varieties. With an increase of 1°C·d per day in the accumulated cold degree days, the relative content of the essential amino acids was increased by 0.01–0.41%, depending on the rice variety and growth stage. Our results suggest that LTS can improve nutritional quality of amino acids of rice grains in terms of amino acids content, especially at flowering stage. These results provide critical insights for assessing the potential impact of extreme climates on the nutrient quality of rice under future climate change.

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“…This P fertiliser dependence is greater in the economically poor regions, which are characterised by upland and rainfed rice farms 7 . However, most farmers in these regions, where rice demand is generally higher, already cannot afford the fertiliser costs or do not have access to P fertilisers 7 – 9 . This situation is bound to be aggravated as the demand for rice production is on the rise to feed an alarmingly increasing world population 10 , 11 .…”

Section: Introductionmentioning

confidence: 99%

Comparative transcriptome analysis reveals a rapid response to phosphorus deficiency in a phosphorus-efficient rice genotype

Prodhan

Pariasca‐Tanaka

Ueda

et al. 2022

Sci Rep

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Phosphorus (P) is an essential plant nutrient. Most rice growing lands lack adequate P, requiring multiple P fertiliser applications to obtain expected yields. However, P fertiliser is environmentally damaging, and already unaffordable to the marginal farmers. This warrants developing P-efficient rice varieties that require less P to produce the expected yield. However, genetic factors underlying P-use efficiency (PUE) in rice remain elusive. Here, we conducted comparative transcriptome analysis using two rice varieties with contrasting PUE; a P-efficient landrace DJ123 and a P-inefficient modern cultivar IR64. We aimed to understand the transcriptomic responses in DJ123 that allow it to achieve a high PUE under low P conditions. Our results showed that both DJ123 and IR64 had replete tissue P concentrations after 48 h of P deprivation. Yet, DJ123 strongly responded to the external low P availability by inducing P starvation-inducible genes that included SPX2, PHO1, PAPs and SQDs, while these genes were not significantly induced in IR64. We envisage that the ability of DJ123 to rapidly respond to low P conditions might be the key to its high PUE. Our findings lay a valuable foundation in elucidating PUE mechanism in rice, thus will potentially contribute to developing P-efficient modern rice variety.

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Phosphorus application affects lowland rice yields by changing phenological development and cold stress degrees in the central highlands of Madagascar

Cited by 15 publications

References 48 publications

Optimizing phosphorus management to increase grain yield and nutritional quality while reducing phytic acid concentration in black rice (Oryza sativa L.)

Optimizing phosphorus management to increase grain yield and nutritional quality while reducing phytic acid concentration in black rice (Oryza sativa L.)

Extreme Low-Temperature Stress Affects Nutritional Quality of Amino Acids in Rice

Comparative transcriptome analysis reveals a rapid response to phosphorus deficiency in a phosphorus-efficient rice genotype

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