What are some selective advantages of large beans?

- Increased protection against pests and pathogens: Larger beans have a thicker seed coat, which can provide increased protection against pests and pathogens. This can be particularly beneficial in environments where these threats are common.

- Improved water retention: Larger beans can store more water, which can be an advantage in dry environments or during periods of drought.

- Greater nutrient reserves: Larger beans have more nutrient reserves, which can support seedling growth and development.

- Increased seed dispersal: Larger beans may be more likely to be dispersed by animals or wind, which can help to increase the plant's range.

- Enhanced germination and seedling vigor: Larger beans may have higher germination rates and more vigorous seedlings, which can improve plant establishment and survival.

- Better competitive ability: Larger beans may be more competitive with other plants for resources such as water and nutrients, which can give them an advantage in diverse plant communities.

- Increased reproductive success: Larger beans may produce more flowers and seeds, which can increase the plant's reproductive success.