Development of Low-Cost IoT System for Monitoring Piezometric Level and Temperature of Groundwater.

Rural communities in Mexico and other countries with limited economic resources require a low-cost measurement system for the piezometric level and temperature of groundwater for their sustainable management, since anthropogenic action (pumping extractions), natural recharge and climate change phenomena affect the behavior of piezometric levels in the aquifer and its sustainability is at risk. Decrease in the piezometric level under a balanced level promotes salt intrusion from ocean water to the aquifer, salinizing and deteriorating the water quality for agriculture and other activities; and a decrease in water level under the pumps or well drilling depth could deprive communities of water. Water temperature monitoring is essential to determine electric conductivity and dissolved salt content in groundwater.

Cell wall-related genes and lignin accumulation contribute to the root resistance in different maize ( L.) genotypes to (Sacc.) Nirenberg infection.

Introduction: The fungal pathogen (Sacc.) Nirenberg () causes considerable agricultural and economic losses and is harmful to animal and human health. can infect maize throughout its long agricultural cycle, and root infection drastically affects maize growth and yield.

[Food habits of Lutjanus peru (Pisces:Lutjanidae) in the coasts of Guerrero, Mexico].

In this paper we describe the feeding habits of the Red snapper (Lutjanus peru) in the southern coast of Guerrero state, Mexico. This data could be relevant to local fisheries management. In total 385 full stomachs (206 from females and 179 from males) were collected monthly in 1993 and 1994, from commercial catches.

[Gonadal development and reproductive cycle of Lutjanus peru (Pisces: Lutjanidae) in Guerrero, Mexico].

In this paper, aspects of the reproductive biology of Lutjanus peru that can be used for the fishery management are described. Samples were taken monthly in 1993 and 1994, from commercial catches in the southern coast of Guerrero, Mexico. A global sex ratio of 1:1.