Skip to main content

Table 4 Effects of Korean canola cultivars as biofumigant on weed emergence, pepper performance, and fruit pungencya

From: An optimized biofumigant improves pepper yield without exerting detrimental effects on soil microbial diversity

 

Treatment

Control

HanRa canola

YongSan canola

Weed emergence (number/pot)

 Monocot

12.1 ± 0.5a

8.3 ± 0.9b

9.3 ± 0.3b

 Dicot

11.9 ± 0.7a

7.3 ± 1.0b

7.7 ± 0.2b

 Total

23.0 ± 0.7a

15.6 ± 1.5b

17.0 ± 0.4b

Plant height (cm)

527 ± 26.7a

573 ± 3.9a

547 ± 1.9a

Stem diameter (cm)

0.47 ± 0.02a

0.51 ± 0.01a

0.47 ± 0.02a

Chlorophyll contents (SPAD)

41 ± 0.8b

46 ± 1.4a

46 ± 0.8a

Canopy diameter (cm)

268 ± 23a

286 ± 5a

301 ± 8a

Primary branch length (cm)

5.9 ± 1.1a

7.0 ± 0.27a

7.4 ± 1.1a

Primary branch diameter (cm)

0.11 ± 0.02a

0.13 ± 0.01a

0.17 ± 0.02a

Fruit yield (g plant− 1)

30.3 ± 4.0b

45.4 ± 3.2a

47.1 ± 3.8a

Pungency (mg 100 g− 1)

 Capsaicin

178.0 ± 0.8a

171.7 ± 1.1b

109.5 ± 0.1c

 Dihydrocapsaicin

77.7 ± 0.1b

91.5 ± 0.9a

50.6 ± 0.2c

 Total pungency

255.7 ± 0.9b

263.2 ± 0.2a

160.1 ± 0.2c

  1. aWeed emergence was collected a day before transplanting and pepper growth traits were determined at the end of the experiment. Fruit yield and pungency represented three fruit picking periods. Mean values followed by different letter(s) in a column represent significant differences at p ≤ 0.05, LSD test