Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   FALL 2015 , Volume 25 , Number 3; Page(s) 119 To 135.
 
Paper: 

EFFECT OF MYCORRHIZAL FUNGI ON YIELD AND YIELD COMPONENTS OF SESAME (SESAMUM INDICUM L.) LANDRACES UNDER DIFFERENT IRRIGATION LEVELS

 
 
Author(s):  GHOLINEZHAD ESMAEIL*, DARVISHZADEH REZA
 
* DEPT. OF AGRONOMY, PAYAME NOOR UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

In order to investigate the effects of different levels of drought stress and two kinds of mycorrhizal fungi on yield and yield components of eight sesame (Sesamum indicum L.) landraces, an experimental using factorial split plot design was conducted with three replications in research field of Urmia agricultural high school. The main factor was consisted different levels of irrigation, normal irrigation (irrigation after 70 mm evaporation of crop (ETc)), moderate drought stress (irrigation after 90 mm ETc) and severe drought stress (irrigation after 110 mm ETc), sub plots including two kinds of mycorrhizal fungi Glomus mosseae, Glomus intraradices and noninoculated (control). Sub-sub plots consisted of eight landraces of sesame names Jiroft13, Zanjan Tarom landrace, Moghan landrace, several branches Naz, TC-25, TS-3, Darab 14 and Dashtestan 5. Results of analysis showed that the effect of different levels of irrigation, mycorrhizal fungi and genotypes on studied traits was significant. Mean comparison showed that with increasing severity of drought stress, grain yield, capsule no per plant, grains no per area, grains no per capsule and biological yield decreased significantly. Severe drought stress reduced grain yield and biological yield about 63 and 52 percent, respectively. Using two kinds of mycorrhizal fungi Glomus mosseae, Glomus intraradices in compared with non-inoculated (control) all traits such as yield and yield components increased. Among under studied sesame landraces, Moghan landrace and Zanjan Tarom landrace based on traits yield and yield components had superiority on other landraces. For improvement yield and yield components, using mycorrhizal fungi, especially G.mosseae is recommendable. Also in three different irrigation conditions, Moghan landrace and Zanjan Tarom landrace were superior landraces.

 
Keyword(s): DROUGHT STRESS, GRAIN YIELD, LANDRACES, MYCORRHIZAL FUNGI, SESAME
 
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