Rice Physiology

Nawaz, Ahmad; Farooq, Muhammad

doi:10.1007/978-3-319-47516-5_17

Cited by 5 publications

(11 citation statements)

References 146 publications

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“…OS has several distinctive growth stages, including tillering, heading, ripening and et al (Zhang et al 2018), which typically require different levels of nutrients (Fairhurst et al 2007). For example, during the tillering stage, OS biomass increases much faster than during other stages of OS growth, and consequently requires a more intensive nutrient supply (Nawaz & Farooq 2017). If the nutrient supply needs are not met (i.e., due to low nutrient concentrations in the water), many tillers become non-productive, and the few remaining productive tillers enter the reproductive stage earlier than normal (Nawaz & Farooq 2017).…”

Section: Discussionmentioning

confidence: 99%

“…For example, during the tillering stage, OS biomass increases much faster than during other stages of OS growth, and consequently requires a more intensive nutrient supply (Nawaz & Farooq 2017). If the nutrient supply needs are not met (i.e., due to low nutrient concentrations in the water), many tillers become non-productive, and the few remaining productive tillers enter the reproductive stage earlier than normal (Nawaz & Farooq 2017). In submerged paddy fields, the intensity of nutrient supply is manipulated by top-dressing fertilizers (Fairhurst et al 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the tender shoots and leaves of IA are consumable, and providing additional economic value. Alternatively, Oryza sativa (OS) is a submerged grain crop that is common in Asia, and its assimilation ability of nitrogen and phosphorus is similar to IA (Nawaz & Farooq 2017). OS is thus another candidate for EN replacement.…”

Section: Introductionmentioning

confidence: 99%

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Peer Review #3 of "Using Ipomoea aquatic as an environmental-friendly alternative to Elodea nuttallii for the aquaculture of Chinese mitten crab (v0.1)"

Liversage¹

2019

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Elodea nuttallii (EN) is widely used in Chinese mitten crab (CMC) rearing practice, but it is not a native aquatic plant and cannot endure high temperature. Thus, large EN mortality and water deterioration events could occur during high temperature seasons. The aim of this study was to identify the use of local macrophytes in CMC rearing practice, including Ipomoea aquatic (IA) and Oryza sativa (OS). A completely randomized field experiment was conducted to investigate the crab yield, water quality, bacterioplankton community and functions in the three different systems (EN, IA, and OS). Average crab yields in the different macrophyte systems did not differ significantly. The IA and OS systems significantly decreased the TN and NO 3-N quantities in the outflow waters during the rearing period compared to the EN system, and the IA and OS plants assimilated more nitrogen than the EN plant. Moreover, the significant changes of bacterioplankton abundances and biodiversity in the three systems implied that cleanliness of rearing waters was concomitantly attributed to the differential microbial community and functions. In addition, principle component analysis successfully differentiated the bacterioplankton communities of the three macrophytes systems. Environmental factor fitting and the cooccurrence network analyses indicated that pH was the driver of bacterioplankton community structure. Functional predictions using PICRUSt (v.1.1.3) software based on evolutionary modeling indicated a higher potential for microbial denitrification in the IA and OS systems. Notably, the OS plants stopped growing in the middle of the rearing period. Thus, the IA system rather than the OS system could be a feasible and environmental-friendly alternative to the EN system in CMC rearing practice.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Peer Review #3 of "Using Ipomoea aquatic as an environmental-friendly alternative to Elodea nuttallii for the aquaculture of Chinese mitten crab (v0.1)"

Liversage¹

2019

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“…O. sativa has several distinctive growth stages, including tillering, heading, ripening and et al (Zhang et al, 2018), which typically require different levels of nutrients (Fairhurst et al, 2007). For example, during the tillering stage, O. sativa biomass increases much faster than during other stages of O. sativa growth, and consequently requires a more intensive nutrient supply (Nawaz & Farooq, 2017). If the nutrient supply needs are not met (i.e., due to low nutrient concentrations in the water), many tillers become non-productive, and the few remaining productive tillers enter the reproductive stage earlier than normal (Nawaz & Farooq, 2017).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the tender shoots and leaves of I. aquatic are consumable, and providing additional economic value. Alternatively, Oryza sativa is a submerged grain crop that is common in Asia, and its assimilation ability of nitrogen and phosphorus is similar to I. aquatic (Nawaz & Farooq, 2017). O. sativa is thus another candidate for E. nuttallii replacement.…”

Section: Introductionmentioning

confidence: 99%

Using Ipomoea aquatic as an environmental-friendly alternative to Elodea nuttallii for the aquaculture of Chinese mitten crab

Shi

Jin²,

Shen³

et al. 2019

PeerJ

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Elodea nuttallii is widely used in Chinese mitten crab (CMC) rearing practice, but it is not a native aquatic plant and cannot endure high temperature. Thus, large E. nuttallii mortality and water deterioration events could occur during high-temperature seasons. The aim of this study was to identify the use of local macrophytes in CMC rearing practice, including Ipomoea aquatic and Oryza sativa. A completely randomized field experiment was conducted to investigate the crab yield, water quality, bacterioplankton community and functions in the three different systems (E. nuttallii, I. aquatic, and O. sativa). Average crab yields in the different macrophyte systems did not differ significantly. The I. aquatic and O. sativa systems significantly decreased the total nitrogen and nitrate-N quantities in the outflow waters during the rearing period compared to the E. nuttallii system, and the I. aquatic and O. sativa plants assimilated more nitrogen than the E. nuttallii plant. Moreover, the significant changes of bacterioplankton abundances and biodiversity in the three systems implied that cleanliness of rearing waters was concomitantly attributed to the differential microbial community and functions. In addition, principle component analysis successfully differentiated the bacterioplankton communities of the three macrophytes systems. Environmental factor fitting and the co-occurrence network analyses indicated that pH was the driver of bacterioplankton community structure. Functional predictions using PICRUSt (v.1.1.3) software based on evolutionary modeling indicated a higher potential for microbial denitrification in the I. aquatic and O. sativa systems. Notably, the O. sativa plants stopped growing in the middle of the rearing period. Thus, the I. aquatic system rather than the O. sativa system could be a feasible and environmental-friendly alternative to the E. nuttallii system in CMC rearing practice.

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Seed Priming with Poly-Gamma-Glutamic Acid (γ-PGA) Improves Rice Germination Performance under Drought Conditions

Dueñas,

Calvio,

Slamet-Loedin

et al. 2024

Agriculture

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Drought poses a significant threat to global food security, particularly impacting rice cultivation during the germination stage. In this study, a soil-based system that utilizes soil moisture content was used to simulate optimal and stress conditions to assess the effect of the specific seed priming protocols on germination. Eleven rice varieties, representative of indica and japonica subspecies, grown in different ecosystems and having diverse nutrient contents, were treated with water or solutions of either poly-gamma-glutamic acid (γ-PGA) or denatured γ-PGA. Collected data regarding germinability and stress indices revealed different drought sensitivity between japonica and indica subspecies and genotype-specific responses to priming. Particularly, γ-PGA improved germination of highly susceptible indica varieties whereas water soaking was more effective for the moderately sensitive japonica varieties. Integrative analyses evidenced differences between biofortified and non-biofortified rice under γ-PGA treatment, suggesting a possible correlation between γ-PGA efficacy and Zn/Fe seed content. These findings underline that priming strategies should be tailored based on genotype and therefore this factor should be always taken under consideration for future works. The current study provides relevant information for optimizing seed priming techniques to sustain the development of drought-resilient crops as a sustainable strategy to address agricultural resilience and safeguard food security amidst environmental challenges.

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Rice Physiology

Cited by 5 publications

References 146 publications

Peer Review #3 of "Using Ipomoea aquatic as an environmental-friendly alternative to Elodea nuttallii for the aquaculture of Chinese mitten crab (v0.1)"

Peer Review #3 of "Using Ipomoea aquatic as an environmental-friendly alternative to Elodea nuttallii for the aquaculture of Chinese mitten crab (v0.1)"

Using Ipomoea aquatic as an environmental-friendly alternative to Elodea nuttallii for the aquaculture of Chinese mitten crab

Seed Priming with Poly-Gamma-Glutamic Acid (γ-PGA) Improves Rice Germination Performance under Drought Conditions

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