FIGURE 8
3.5 The hormone
content in grains
In Exp. 3, the hormone contents related to grain filling changed with
time in different treatments (Figure 9). Correlation analysis indicated
that the average of grain filling rate was negatively correlated with
the ZR content in both superior and inferior grains (Table 2). Compared
with CK, ZR content was increased by 11% in DHS treatment on the
16th DAP for superior grain (Figure 9a). It was
increased by 19% in DS treatment, 20% in HS treatment and 16% in DHS
treatment on the 16th DAP for inferior grain. The mean
grain filling rate was positively correlated with the IAA content in
superior grains on the 32th DAP. For IAA content, it
was reduced by 21% in DS treatment, 26% in HS treatment and 20% in
DHS treatment on the 32th DAP for superior grain
(Figure 9b).