Study of Ef
Study of Effects of different levels of irrigation
interval and nitrogen on some physiological traits of signet marigold (Tagetes
tenuifolia)
Mohammad Kafi*, Zeinolabedin
jouyban**
* Department of
Agronomy, Ferdowsi University of Mashhad, P.O. Box 1163, Mashhad, Iran
** Young Researchers Club, Borujerd Branch, Islamic Azad University, Borujerd,
Iran
E-mail: [email protected]
Abstract: In
order to study the effect of different levels of irrigation and nitrogen on some
physiological traits of signet marigold (Tagetes tenuifolia), a study
was carried out in greenhouse of Ferdowsi University of Mashhad, Iran in 2012
on the basis of a Randomized Complete Block Design with three replications. The
main plot was irrigation interval at three levels of 2, 4 and 6 days and the
sub-plot was N fertilization at three levels of 0, 15 and 30 g. Analysis of
variance showed that the effect of irrigation interval was not significant on
chlorophyll index, stomatal conductance and leaf area. N fertilization level
significantly influenced total leaf area, but its effect was not significant on
chlorophyll index and stomatal conductance, so that the increase in N
fertilization level significantly increased total leaf area by 3.8%. So, it is
recommended to use irrigation interval of 2 days and 30 g N fertilization to
achieve the highest level of the studied physiological traits.
[Mohammad Kafi, Zeinolabedin jouyban. Study of Effects of different
levels of irrigation interval and nitrogen on some physiological traits of
signet marigold (Tagetes tenuifolia). Life Sci J 2013;10(7s):
348-350]. (ISSN: 1097-8135).http://www.lifesciencesite.com. 55
Keywords: signet marigold, irrigation, nitrogen, physiological
traits. Full Text 55
