Table 4. Leaf P concentrations due to effect of variety and
 of rates of nematicide.


 Nematicide rates (kg a.i. ha-')
Variety 0 0.56 0.84 1.12
 -----------------------g kg------------------

Leflore 3.87AX 3.66AX 3.64AX 3.71AX
Davis 2.73BY 3.44AX 3.12BXY 3.05BXY


Leaf concentration mean values not followed by the same letter
(A, B) within a column or (X, Y) within a row (variety) are
significantly different at the 5% level, according to the
Duncan's Multiple-Range Test and to polynomial contrasts,
respectively.

Table 5. Concentrations of soil K, Ca, and change in soil pH
 ra +t* nvri +sa1 ffcmr*+


Variety K Ca pH
 ---------g kg- -------

Leflore 0.026B 0.23A 6.09A
Davis 0.034A 0.21B 5.92B


Leaf concentration mean values not followed by the same letter
are significantly different at the 5%, level according to the
Duncan's Multiple-Range Test.

Table 6. Analysis of variance (mean squares) of leaf Cu, Mn,
 Zn. and Fe for the varietal effect.
 df Cu Mn Zn Fe

Rep 3 1.86ns 3312.70** 111.45ns 11.46ns
Variety 1 7.03* 20351.53** 3220.03** 28.13ns
Nematicide 3 0.28ns 859.53ns 34.36ns 44.79ns
Var x Nem 3 0.531ns 509.95ns 133.45ns 128.13ns
Error 21 1.484 500.91 72.38 80.51

*, ** Significant at the 5% and 1% level, respectively.
ns = nonsignificant

Table 7.- Leaf Cu, Mn, Fe, and Zn concentrations due to the
 varietal effect.
 Cu Mn Fe Zn
 ------------mg/kg-------------------------

Leflore 2.69B 142.56A 80.00A 62.44A
Davis 3.63A 92.13B 81.88A 42.38B

Leaf concentration mean values not followed by the same letter
are significantly different at the 5%, level according to the
Duncan's Multiple-Range Test.