Conclusions

Potential crop dry-matter production depends on the various interacting effects of the physical environment. The complex physiological responses of this CAM plant to several simultaneously varying weather factors (Fig. 5.17) make it difficult to link weather through its effects on physiological processes to dry-matter accumulation, dry-matter partitioning or yield. Even where controlled-environment studies have increased our understanding of physiological responses to one factor, it is difficult to extrapolate such results to the field. These considerations apply to many crops but are a particular problem for pineapple because of

Temperature

Irradiance

A

Daily thermoperiod

Water supply

Proportion of C02 fixed by CAM

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