Which of the following plants is not a leguminous forage?

This question is asking which of the following plants is not a leguminous forage. Leguminous forages are plants that belong to the legume family and have the ability to fix nitrogen from the atmosphere into the soil through a symbiotic relationship with nitrogen-fixing bacteria. These plants are commonly used as forage crops for livestock because they have high protein content and are nutritious.

Let's look at the options:

Option A: Centrosema Pubescens - Centrosema Pubescens is a leguminous forage. It is commonly known as centro and is used as a cover crop and forage in tropical and subtropical regions.

Option B: Panicum maximum - Panicum maximum is not a leguminous forage. It is a type of grass commonly known as Guinea grass or elephant grass. While it is used as a forage crop for livestock, it does not have the ability to fix nitrogen like leguminous forages.

Option C: Stylosanthes gracilis - Stylosanthes gracilis is a leguminous forage. It is commonly known as stylo and is used as a forage crop in tropical and subtropical regions.

Option D: Calopogonium mucunoides - Calopogonium mucunoides is a leguminous forage. It is commonly known as Calopo or creeping legume and is used as a cover crop and forage in tropical regions.

So, the correct answer is Option B: Panicum maximum. It is not a leguminous forage.

Remember, leguminous forages are important for sustainable agriculture as they contribute to soil fertility through nitrogen fixation. They also provide high-quality forage for livestock.

To learn more about leguminous forages and their importance in agriculture, please see the recommended textbooks.