Abstract
Abstract Leaf area is an important factor affecting crop yield. However, leaf area has spatial variability and the relationship between leaf area and yield have scale dependence. For these reasons, we establish multifractal model of maize ( Zea mays L.) leaf area and joint multifractal model of maize leaf area and yield. The experiment was carried at the Xiangyang base of Northeast Agricultural University. The size of experimental plot was 9,216 m 2 which included 64 sampling points. The spatial and temporal variability of maize leaf area was studied with traditional statistics and multifractal methods, and the relationship between maize leaf area and yield at multiple scales was analyzed with the joint multifractal method. Multifractal theory can effectively characterize spatial and temporal variability of maize leaf area and multiscale relationship between leaf area and yield. Maize leaf area exhibited a moderate degree of variation which first decreased then increased with the change in the growth stage, and spatial variability at different growth stages was mainly caused by low leaf area values . At the observed scale, axis weight per ear, ear weight, and grain weight per ear were most significantly related to maize leaf area at the milk, filling, and jointing stages; at the multiscale level, axis weight per ear was most significantly related to maize leaf area at the tasseling, filling, milk, and jointing stages, and ear weight and grain weight per ear were most significantly related to maize leaf area at the tasseling, filling and ripening stages.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Multifractal methods characterized spatial and temporal leaf area variation and its multiscale yield relation.
- Outcome
- spatial and temporal variability of maize leaf area and multiscale relationship between leaf area and yielde0
Zea maysNot reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Multifractal theory can effectively characterize spatial and temporal variability of maize leaf area and multiscale relationship between leaf area and yield”
Claim · model-written summary
Maize leaf area showed moderate variation that first decreased then increased with growth stage.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize leaf area exhibited a moderate degree of variation which first decreased then increased with the change in the growth stage”
Claim · model-written summary
Low leaf area values mainly caused spatial variability across growth stages.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spatial variability at different growth stages was mainly caused by low leaf area values”
t0“maize”
Claim · model-written summary
At the observed scale, axis weight per ear, ear weight and grain weight per ear were most strongly related to leaf area at milk, filling and jointing stages.
- Organ / stage
- milk, filling, and jointing stagese0
- Outcome
- axis weight per ear, ear weight, and grain weight per eare0
- Comparator
- maize leaf areae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the observed scale, axis weight per ear, ear weight, and grain weight per ear were most significantly related to maize leaf area at the milk, filling, and jointing stages”
Claim · model-written summary
At multiple scales, axis weight per ear was most related to leaf area at tasseling, filling, milk and jointing stages.
- Organ / stage
- tasseling, filling, milk, and jointing stagese0
- Outcome
- axis weight per eare0
- Comparator
- maize leaf areae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the multiscale level, axis weight per ear was most significantly related to maize leaf area at the tasseling, filling, milk, and jointing stages”
Claim · model-written summary
At multiple scales, ear and grain weight per ear were most related to leaf area at tasseling, filling and ripening.
- Organ / stage
- tasseling, filling and ripening stagese0
- Outcome
- ear weight and grain weight per eare0
- Comparator
- maize leaf areae0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ear weight and grain weight per ear were most significantly related to maize leaf area at the tasseling, filling and ripening stages”