Table 4. Correlation coefficients among germination, 72 hrs SSAA test, emerged seedlings, useful plants, SVIS, and seedlings with expanded cotyledons in six varieties of lettuce.


Vigor test

Germination

SSAA 72 hrs

Emerged seedlings

Useful plants

SVIS

SSAA 72 hrs

0,406*

(4,31)

Emerged seedlings

0,123 n.s.

(1,20)

0,292*

(2,96)

Useful plants

0,094 n.s.

(0,92)

0,413*

(4,40)

0,496*

(5,54)

SVIS

0,168 n.s.

(1,65)

0,372*

(3,98)

0,342*

(3,53)

0,258*

(2,59)

Seedlings with

expanded cotyledons

0,364*

(3,79)

0,384*

(4,03)

0,457*

(4,98)

0,407*

(4,32)

0,369*

(3,85)

*: significant correlation (P < 0.05)
( ) Student’s-t test statistic; t 0,975 (94) =1.98


Supported by UNESCO / MIRCEN network