Step 1: Understand pomiculture.
Pomiculture is the branch of horticulture that deals with the cultivation of fruit crops.
Step 2: Review the options.
- Silk is related to sericulture (silk farming), not pomiculture.
- Fruit is the correct answer, as pomiculture focuses on the cultivation of fruit crops.
- Vegetables are part of another branch of agriculture.
- Flowers are related to floriculture, not pomiculture.
Step 3: Conclude.
Pomiculture is related to fruit cultivation, making option (B) the correct answer.
Final Answer:
\[
\boxed{\text{Fruit}}
\]