3.2 Plant growth and yield components
Grain yield, straw and root dry weight of Nipponbare
were significantly higher than those of Jiaxing27
(Table 2). Regardless of genotypes, the watersaving
management and Zn fertilization significantly
increased grain yield, straw and root dry weight
(Table 2). The AWD regime significantly increased
grain yield, straw and root dry weight by 11.4%, 11.0%,
and 14.1%, respectively, as compared to those under
the CF regime. For the harvest index, no significant
differences were observed between CF and AWD or
between the two genotypes (Table 2). However, Zn
fertilization significantly increased the harvest index
by 6.23%–10.20%, and the highest harvest index was
observed with ZnSO4 fertilization (Table 2). Plant
growth was significantly impacted by Zn fertilization.
When compared to the control, the grain yield increased
by 29.6% and 19.9% with the ZnSO4 and
Zn-EDTA fertilization, respectively. The straw dry
weight significantly increased by 20.0% and 11.9%
with the ZnSO4 and Zn-EDTA application, respectively.
Root dry weight was significantly increased by
12.10%–21.61%, with more pronounced effects of
ZnSO4 observed as compared with Zn-EDTA.
3.2 Plant growth and yield componentsGrain yield, straw and root dry weight of Nipponbarewere significantly higher than those of Jiaxing27(Table 2). Regardless of genotypes, the watersavingmanagement and Zn fertilization significantlyincreased grain yield, straw and root dry weight(Table 2). The AWD regime significantly increasedgrain yield, straw and root dry weight by 11.4%, 11.0%,and 14.1%, respectively, as compared to those underthe CF regime. For the harvest index, no significantdifferences were observed between CF and AWD orbetween the two genotypes (Table 2). However, Znfertilization significantly increased the harvest indexby 6.23%–10.20%, and the highest harvest index wasobserved with ZnSO4 fertilization (Table 2). Plantgrowth was significantly impacted by Zn fertilization.When compared to the control, the grain yield increasedby 29.6% and 19.9% with the ZnSO4 andZn-EDTA fertilization, respectively. The straw dryweight significantly increased by 20.0% and 11.9%with the ZnSO4 and Zn-EDTA application, respectively.Root dry weight was significantly increased by12.10%–21.61%, with more pronounced effects ofZnSO4 observed as compared with Zn-EDTA.
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