Some agronomic and physiological studies of eight different strains of Coriandrum sativum L.

The commercial production of coriander (Coriandrum sativum L. ) is limited by a variety of factors. Very few field and laboratory studies have been done. The existence of a significantly low germination percentage in the seeds of coriander has been noted. ' 1 his crop is an important spice in tropical countries, and little is known about the effect of environmental factors on physiological and morphological characteristics of the plant. Basic studies are needed to give objective information on management and improvement of coriander. Photoperiod and temperatures are indeed important factors in the flowering of plants. A thorough understanding of these two factors and their possible interactions is essential to an interpretation of the flowering time and fruiting behavior. It has been reported that coriander is being grown in different latitudinal areas. The influence of photoperiod and temperature on growth and development is an essential consideration in field propagation whether for vegetative or seed production. The purpose of this study was to ascertain whether photoperiod, temperature, and other factors affect seed germination and development of coriander. Evaluation of plant growth characteristics was also made on eight cultivars.