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Table 3 Rice cultivars, sampling dates (indicated as days after transplanting, DAT), photosynthetic active radiation (PAR, μ mol m-2 s-1) and the number of samples in the two experiments

From: Estimating rice chlorophyll content and leaf nitrogen concentration with a digital still color camera under natural light

Experiment

Year

Cultivar

Vegetative

Tillering

Jointing

Booting

Number of samples

I

2010

Wuyunjing24

25a (937)b

36 (1536)

50 (1369)

64 (1532)

18

 

2011

Nanjing46

18 (145)

35 (692)

55 (203)

75 (296)

24

II

2010

Nanjing44

22 (1215)

35 (1058)

49 (1759)

63 (1477)

18

  

Yangjing48

22 (1449)

35 (1058)

49 (1759)

63 (1477)

18

 

2011

Nanjing45

16 (427)

29 (654)

51c (589)

57 (289)

18

  

Liangyoupeijiu

16 (427)

29 (654)

51 (589)

65 (621)

18

  1. arepresents sampling dates (the days after transplanting, DAT).
  2. brepresents the average PAR during the period of image acquisition.
  3. cBecause of the continuous sunny days in the jointing stage for Nanjing45, sampling dates was delayed about a week.