Regulation effect of seed priming on sowing rate of direct seeding of rice under salt stress DOI Creative Commons
Yicheng Zhang,

Haider Sultan,

Asad Shah

и другие.

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Март 6, 2025

Direct seeding of rice (DSR) is a widely used method for its labor- and cost-saving advantages. However, the global intensification soil salinization presents significant challenge to food security. Increasing sowing rates common practice enhance germination under salt stress, although it leads higher seed costs. Recently, priming has emerged as an effective technique improve seedling emergence abiotic but regulation treatment on rate DSR saline conditions rarely been reported. Therefore, field experiments were conducted at two salinity levels 1.5‰ (1.5 g kg −1 ) (T2) 3.0‰ (3 (T3) one non-saline condition (0‰) (T1). The control (P1) consisted non-primed seeds, while treatments included 160 mg L − ¹ ascorbic acid (P2), γ-aminobutyric (P3), 200 zinc oxide nanoparticles (P4); three applied: 90 (S1), 150 (S2), 240 seeds m −2 (S3). Our results demonstrated that T1–T3, rate, α-amylase activity, soluble sugar protein contents significantly increased after treatments. reactive oxygen species (i.e., O 2 H malondialdehyde (MDA) decreased, activities enzymatic antioxidants superoxide dismutase, peroxidase, catalase) K + /Na ratio above Under grain yield by 13.39%–36.94% treatments, primarily due enhanced germination, which boosted panicle number per unit area. Among P2–P4 P4 consistently resulted in highest increase (26.96%–36.94%) compared P1, outperforming P2 P3 T1–T3. Furthermore, with was equivalent obtained without . potential mechanisms tolerance include osmoregulatory substances elevated antioxidant enzymes, collectively support improved germination. optimize economic benefits when concentration below 3‰, could be reduced using ZnO-nanoparticle treatment.

Язык: Английский

Regulation effect of seed priming on sowing rate of direct seeding of rice under salt stress DOI Creative Commons
Yicheng Zhang,

Haider Sultan,

Asad Shah

и другие.

Frontiers in Plant Science, Год журнала: 2025, Номер 16

Опубликована: Март 6, 2025

Direct seeding of rice (DSR) is a widely used method for its labor- and cost-saving advantages. However, the global intensification soil salinization presents significant challenge to food security. Increasing sowing rates common practice enhance germination under salt stress, although it leads higher seed costs. Recently, priming has emerged as an effective technique improve seedling emergence abiotic but regulation treatment on rate DSR saline conditions rarely been reported. Therefore, field experiments were conducted at two salinity levels 1.5‰ (1.5 g kg −1 ) (T2) 3.0‰ (3 (T3) one non-saline condition (0‰) (T1). The control (P1) consisted non-primed seeds, while treatments included 160 mg L − ¹ ascorbic acid (P2), γ-aminobutyric (P3), 200 zinc oxide nanoparticles (P4); three applied: 90 (S1), 150 (S2), 240 seeds m −2 (S3). Our results demonstrated that T1–T3, rate, α-amylase activity, soluble sugar protein contents significantly increased after treatments. reactive oxygen species (i.e., O 2 H malondialdehyde (MDA) decreased, activities enzymatic antioxidants superoxide dismutase, peroxidase, catalase) K + /Na ratio above Under grain yield by 13.39%–36.94% treatments, primarily due enhanced germination, which boosted panicle number per unit area. Among P2–P4 P4 consistently resulted in highest increase (26.96%–36.94%) compared P1, outperforming P2 P3 T1–T3. Furthermore, with was equivalent obtained without . potential mechanisms tolerance include osmoregulatory substances elevated antioxidant enzymes, collectively support improved germination. optimize economic benefits when concentration below 3‰, could be reduced using ZnO-nanoparticle treatment.

Язык: Английский

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