In the European feudal system under manorilism what is the most significant economy commodity?

In the European feudal system under manorialism, the most significant economic commodity was land. Land was the primary source of wealth and power, as it provided the means for agricultural production, which was essential for sustenance and trade. Peasants, or serfs, worked the land in exchange for protection and a place to live, making their labor crucial to the economy. Thus, landownership and agricultural output were central to the feudal economy.