Effects of Sediment Content, Flooding, and Drainage Process on Rice Growth and Leaf Physiology of Early Rice During Heading–Flowering Stage DOI Creative Commons
Shuo Cai,

W. J. Zhang,

Bingrui Wang

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 334 - 334

Published: Jan. 28, 2025

In recent years, there has been a notable increase in the frequency and intensity of floods heavy rains, which resulted frequent inundation rice-growing areas. Flooding during heading–flowering stages early rice can result significant yield losses. To elucidate response to sediment content, flooding, drainage processes their underlying mechanisms, pot experiment was conducted investigate effects contents (S1: 0, S2: 0.10 kg m−3, S3: 0.25 m−3), flooding time (F1: 3 days F2: 6 days), (D1: D2: days) stage on oxidation resistance grain Poyang Lake Region. At same time, an experimental control group (CK) set up with no sediment, or treatment. The results showed that flag leaf area S1F1D2 treatment diminished by flooding. relative chlorophyll content (SPAD) reached its lowest value prior drainage. S2F2D1 greatest decrease SPAD 41.57%, only 53.88% activity superoxide dismutase (SOD), peroxidase (POD), malondialdehyde (MDA) were observed period comparison maximum values for these parameters recorded at 5.68, 3.09, 1.9 times higher than those treatment, respectively. However, after Furthermore, occurrence reduction number per spike fruiting rate, consequently leading considerable decline yields, ranging from 31.81% 69.96%. findings indicate yet enhanced antioxidant capacity leaves. Regression analyses indicated prediction model actual stress could be constructed using SFW as independent variable. this study provide theoretical basis formulation scientific reasonable scheme objective reducing loss following southern region China.

Language: Английский

Effects of Sediment Content, Flooding, and Drainage Process on Rice Growth and Leaf Physiology of Early Rice During Heading–Flowering Stage DOI Creative Commons
Shuo Cai,

W. J. Zhang,

Bingrui Wang

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 334 - 334

Published: Jan. 28, 2025

In recent years, there has been a notable increase in the frequency and intensity of floods heavy rains, which resulted frequent inundation rice-growing areas. Flooding during heading–flowering stages early rice can result significant yield losses. To elucidate response to sediment content, flooding, drainage processes their underlying mechanisms, pot experiment was conducted investigate effects contents (S1: 0, S2: 0.10 kg m−3, S3: 0.25 m−3), flooding time (F1: 3 days F2: 6 days), (D1: D2: days) stage on oxidation resistance grain Poyang Lake Region. At same time, an experimental control group (CK) set up with no sediment, or treatment. The results showed that flag leaf area S1F1D2 treatment diminished by flooding. relative chlorophyll content (SPAD) reached its lowest value prior drainage. S2F2D1 greatest decrease SPAD 41.57%, only 53.88% activity superoxide dismutase (SOD), peroxidase (POD), malondialdehyde (MDA) were observed period comparison maximum values for these parameters recorded at 5.68, 3.09, 1.9 times higher than those treatment, respectively. However, after Furthermore, occurrence reduction number per spike fruiting rate, consequently leading considerable decline yields, ranging from 31.81% 69.96%. findings indicate yet enhanced antioxidant capacity leaves. Regression analyses indicated prediction model actual stress could be constructed using SFW as independent variable. this study provide theoretical basis formulation scientific reasonable scheme objective reducing loss following southern region China.

Language: Английский

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