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Table 1 Results of field measurements of soybean CCC (Dualex units)

From: Method for accurate multi-growth-stage estimation of fractional vegetation cover using unmanned aerial vehicle remote sensing

Date (2015)

Stage and abbreviation

n

Min

Max

Mean

Standard

deviation

Coefficient

of variation

UAV

July 29

Flowering (S1)

42

23.19

33.84

26.82

2.42

9.01%

-

August 13

Early-podding (S2)

42

20.99

28.91

25.54

1.58

6.20%

-

August 31

Later-podding (S3)

42

29.27

47.83

37.38

3.01

8.07%

√

September 17

Grain-filling (S4)

42

6.52

38.28

25.92

8.18

31.58%

√

September 28

Harvest (S5)

24

8.81

36.05

21.33

7.62

35.77%

-

–

All stages

192

6.52

47.83

27.97

7.31

26.14%

-

  1. Field soybean CCC measured by the Dualex 4 is marked as “Dualex units,” and n is the number of soybean plots. Some early-maturing plots were harvested during stage S5. Min, max and mean represent the minimum, maximum, and averaged value of soybean CCC
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Plant Methods

ISSN: 1746-4811