Waterworts
The Elatinaceae family, commonly known as the waterworts, consists of small annual or perennial herbs that thrive in aquatic or semi-aquatic habitats. While not considered crops in the conventional sense, they are of significant interest in agronomy, particularly concerning weed management in rice production and wetland agriculture.
What the section contains
Waterworts
The family is cosmopolitan in its distribution, occurring globally from tropical to temperate climates. They are typically found in shallow water, mudflats, and irrigation channels. Their presence is a strong indicator of water stagnation and can often signify a need for improved water management practices in commercial farming operations.
Botanically, these plants are characterized by minute, opposite or whorled leaves and tiny, regular flowers. They possess a high degree of phenotypic plasticity, often changing their growth habit depending on whether they are submerged or stranded on moist soil. Their root systems are minimal, reflecting their ability to absorb nutrients directly through their leaves and stems.
Agronomic requirements for controlling waterworts focus primarily on managing the hydroperiod of the field. In rice cultivation, strategies include adjusting water depths and implementing drainage periods to disrupt the life cycle of these weeds. They do not serve any significant economic purpose, although some species are occasionally used in aquatic horticulture for artificial ponds.
Regarding pest and disease management, the Elatinaceae family is generally resilient. They are rarely targeted by specialized diseases that would impact primary crops. However, dense infestations can harbor various aquatic pests that might inadvertently affect the target crop. Chemical control is occasionally utilized in intensive agricultural systems to maintain clean irrigation channels.