plant phenology in a sentence

1. Tolerance to drought is a quantitative trait, with a complex phenotype, often confounded by plant phenology.
2. The first is to watch for Plant Phenology Indicators ( PPI ), plants that bloom at the same time that pests are present on another species.
3. Research activities include molecular studies of gene evolution, investigations of plant-water relations, and the monitoring of plant phenology, vegetation succession, nutrient cycling and other factors that inform studies of environmental change.
4. It's difficult to find plant phenology in a sentence.