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Table 2 Vascular bundle and air chambers of the N4 internode culm in two japonica rice cultivars under different nitrogen rates

From: Lodging Resistance of Japonica Rice (Oryza Sativa L.): Morphological and Anatomical Traits due to top-Dressing Nitrogen Application Rates

Treatments

NLVB

ALVB (μm2)

NSVB

ASVB (μm2)

NAC

AAC

(μm2)

Wuyunjing23

LN

32.2a

21032.0a

32.8a

5594.5a

29.0a

21099.7a

MN

32.6a

19726.4a

31.3b

4706.5b

29.0a

21215.2a

HN

32.0a

16109.8b

32.5a

4245.1b

29.5a

22507.0a

W3668

LN

29.6a

14002.8a

27.8a

3213.6a

27.2a

11850.3a

MN

29.3a

12986.7a

28.6a

2846.5a

26.2a

12072.6a

HN

28.8a

12706.5a

27.2a

2440.6b

26.8a

12915.9a

Analysis of variance

Variety (V)

171.5b

139.6b

160.1b

598.8b

14.7b

64.1b

Nitrogen (N)

2.5

14.0b

0.7

32.0b

0.3

2.1

V × N

1.2

5.7a

6.0a

13.0b

0.2

0.6

  1. Different lowercase letters represent a significant difference at the 0.05 level
  2. Abbreviations: NLVB number of large vascular bundles, ALVB area of large vascular bundles, NSVB, number of small vascular bundles, ASVB area of small vascular bundles, NAC number of air chambers, AAC area of air chambers
  3. a, b Means significant at the 0.05 and 0.01 probability levels, respectively