Study of Effects o
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.
