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Table 6 The effects of cultivar, sowing date, and transplant location on days from transplant to initial bolting, to 50% bolting and bolting rate by 30 April in 2011 and 2012

From: The effect of cultivar, sowing date and transplant location in field on bolting of Welsh onion (Allium fistulosumL.)

Treatment

Days from transplant to initial bolting (d)

Days from transplant to 50% bolting (d)

Bolting rate by 30 April (%)

 

2011

2012

2011

2012

2011

2012

Grand mean

128.4

139.7

140.5

-

39.7

16.0

Cultivars

      

JinGuan

110.9ca

118.6c

125.8c

-

53.9a

26.7a

XiaHei

145.2a

158.9a

-a

-

29.3c

5.9c

YeFu

129.1b

141.6b

130.8b

-

36.0b

15.5b

Sowing date

      

08.20

118.0c

124.2c

119.8c

-

64.5a

30.1a

09.09

125.6b

141.9b

136.8b

-

39.7b

12.6b

09.29

141.7a

152.9a

-a

-

15.0c

5.4c

Transplant location

      

Open field

155.0a

151.9a

-a

-

9.3c

5.6c

Cold shed

123.7b

138.4b

132.8b

-

44.7b

16.0b

Plastic tunnel

106.6c

128.7c

123.8c

-

65.2a

26.4a

F-test

      

Cultivar (C)

***

***

***

NS

***

***

Sowing date (D)

***

***

***

NS

***

***

Transplant location (L)

***

***

***

NS

**

***

C*D

***

***

*

NS

***

***

C*L

***

***

NS

NS

*

***

D*L

***

***

**

NS

***

***

C*D*L

***

***

NS

NS

***

***

  1. * Significant at P = 0.05.
  2. ** Significant at P = 0.01.
  3. *** Significant at P = 0.001.
  4. NS, Not significant.
  5. aDifferent letters indicate significant differences between means within columns at the 5% probability level by LSD.
  6. -a stands for no bolting, where 3 May (165 days for 2011 and 166 d for 2012) was used as the bolting date for LSD tests.