Correct

物候

/ wùhòu / 
Strokes

Definition

natural phenomena of a seasonal nature

Example

As a Noun

phenology

1
Wù
物
hòu
候
jìjié
季节

phenological season

2
Wùhòu
物候
zīliào
资料

phenological data

3
Wùhòu
物候
zhīshi
知识

phenological knowledge

4
Wùhòu
物候
yánjiū
研究

phenological study

5
Wù
物
hòu
候
rìlì
日历

phenological calendar

6
Guānchá
观察
wù
物
hòu
候

observe various phenomena