Prediction of vertical distribution of SPAD values within maize canopy based on unmanned aerial vehicles multispectral imagery

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Дек. 18, 2023

Real-time monitoring of canopy chlorophyll content is significant in understanding crop growth status and guiding precision agricultural management. Remote sensing methods have demonstrated great potential this regard. However, the spatiotemporal heterogeneity within canopies poses challenges to accuracy stability remote estimation models. Hence, study aimed develop a novel method for estimating (represented by SPAD values) maize ( Zea mays L.) canopies. Firstly, we investigated distribution patterns values under varying nitrogen application rates different stages. The results revealed non-uniform, “bell-shaped” curve vertical direction. Nitrogen significantly influenced structure canopy. Secondly, achieved satisfactory fitting Lorentz peak function leaf positions maize. performance, evaluated using R 2 RMSE, ranged from 0.69 0.98 0.45 3.59, respectively, year 2021, 0.77 2.38 6.51, 2022.Finally, based on correlation between vegetation indices (VIs) at stages, identified sensitive selected CCCI (Canopy Chlorophyll Index) each stage. 6th (r = 0.662), 4th 0.816), 12th 0.722), 0.874) exhibited highest correlations. Compared model wide values, showed improved accuracy, with increases 34%, 3%, 20%, 3% stage, respectively. In conclusion, findings contribute enhancement models provide valuable insights integration methods.

Язык: Английский

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Investigating the efficacy of purple non-sulfur bacteria (PNSB) inoculation on djulis (Chenopodium Formosanum Koidz.) growth, yield, and maturity period modulation

Plant and Soil, Год журнала: 2023, Номер 496(1-2), С. 289 - 317

Опубликована: Окт. 28, 2023

Язык: Английский

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Developing carotenoids-enhanced tomato fruit with multi-transgene stacking strategies

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 210, С. 108575 - 108575

Опубликована: Март 28, 2024

Язык: Английский

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Combination of light quality and melatonin regulates the quality in mustard sprouts

Food Chemistry X, Год журнала: 2024, Номер 23, С. 101560 - 101560

Опубликована: Июнь 15, 2024

Mustard sprouts is a new form of vegetable product that gaining attention due to its high content health-promoting compounds such as glucosinolates. This study investigated the effects different light qualities (white, red, and blue) alone in combination with 100 μmol L−1 melatonin on growth substance mustard sprouts. The results showed white + treatment promoted accumulation glucosinolates (compared increased by 47.89%). edible fresh weight treated red was highest, followed treatment. In addition, blue contained more ascorbic acid, flavonoids, total phenolics. Therefore, combined quality (especially light) can provide strategy improve

Язык: Английский

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Tuber quality enhancement via grafting potato onto a wooden goji rootstock through vitalizing multi-pathways

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 214, С. 108927 - 108927

Опубликована: Июль 18, 2024

Язык: Английский

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