in order to identify the plant parasitic nematodes associated with polianthes tuberosa in dezful regions, iran, 300 soil and root samples were collected from different parts of the region, during 2012-2014. the samples were washed and the nematodes were extracted by centrifugal flotation technique. the nematodes were fixed and transferred to glycerin, and then the permanent slides of the nemato...

plant spacing and nitrogen are the most important factors for increasing tuberose quality and quantity. in this study, field experiment carried out as factorial randomized completely block design (rcbd) in 3 replications. different levels of nitrogen (0, 50, 100, 150, 200, 250 kg/ha) of ammonium nitrate was used. second factor was different plant spaces (10, 15, 20 and 25 cm). results showed th...

Flowers are a key source of released fragrance volatiles in the biotic world. Despite fact that volatile organic compounds (VOCs) have low molecular weights, polarity, and vapour pressures, process release is influenced by floral tissue’s morphology, anatomy, cellular properties. Polianthestuberosa L. flowering plant Agavaceae family (also known as Asparagaceae Amaryllidaceae some botanists) co...