College of Agriculture

Hossein Zakeri

Associate Professor

Personal Information

Hossein Zakeri came to Chico from the University of Missouri where he was postdoctoral fellow studying soybean water use efficiency. He has a PhD in the field of crop physiology and cropping systems from the University of Saskatchewan. Hossein’s work and research focuses on row crops. He has done research on safflower, wheat, lentil, pea, canola and soybean. For his PhD, he studied nitrogen acquisition and biological nitrogen fixation of lentil. After his PhD, Hossein worked for Crop Development Centre and Agriculture and Agri-food Canada studying pulse crops nodulation, pea nitrogen fixation, and canola water use efficiency and drought tolerance mechanisms. Hossein has a BS in agronomy and crop breeding and an MS in crop physiology from Iran, where he also taught undergraduate agriculture during 1999 – 2006.

Courses Taught

  • PSSC 101 – Intro to Plant Sciences
  • PSSC 361 – Production of Annual Crops
  • PSSC 459 – Crop Physiology
  • AGRI 490 – Agriculture Research

Research and Professional Interests 

  • Cropping system with emphasis on plant diversity
  • Plant nutrition with emphasis on biological resources
  • Plant response to heat and drought stresses
  • Water management 

Professional Affiliations 

  • American Society of Agronomy
  • Crop Science Society of America
  • Soil Science Society of America 


The quantity of nitrogen derived from symbiotic N fixation but not the relative contribution of N fixation to total N uptake increased with breeding for greater soybean yields. Field Crops Research (2020).

First versus last born: Flowers, pods, and yield formation in no‐tillage lentil. Crop Science (2020).

Symbiosis of selected Rhizobium leguminosarumviciae strains with diverse pea genotypes: effects on biological nitrogen fixation. Canadian Journal of Microbiology (2017).

Evaluation of Growth and Nitrogen Fixation of Pea Nodulation Mutants in Western Canada. Canadian Journal of Plant Science (2017).

Post-flowering Biomass and Nitrogen Accumulation of Lentil Substantially Contributes to Pod Production. Crop Science (2015).

Indirect Estimations of Lentil Leaf and Plant N by SPAD Chlorophyll Meter. International Journal of Agronomy (2015).

Effects of Nitrogen on Reproductive Duration and Yield in Lentil Cultivars. Journal of Plant Nutrition (2013).

Lentil Performance in Response to Weather, No-Till Duration, and Nitrogen in Saskatchewan. Agronomy Journal (2012).

Controlling Indeterminacy in Short Season Lentil by Cultivar Choice and Nitrogen Management (2012).

Portrait of Hossein Zakeri