Effect of foliar application of humic acid micronutrients and cytokinin on yield and some quality traits of Italian basil (Ocimum basilicum L.) under hydroponic cultivations

Subject Areas : Crop Production Research

Roma Kalhor. monfared ¹ , Mohamad Nabi.ilkayi ² , Farzad Paknejad ³

1 - دانشجوی دکتری گروه زراعت و اصلاح نباتات، واحد کرج، دانشگاه آزاد اسلامی، کرج، ایران
2 - دانشیار گروه زراعت و اصلاح نباتات، واحد کرج، دانشگاه آزاد اسلامی، کرج، ایران
3 - استاد گروه زراعت و اصلاح نباتات، واحد کرج، دانشگاه آزاد اسلامی، کرج، ایران

Received: 2021-04-06 Accepted : 2021-07-28 Published : 2021-09-02

Keywords: Chlorophyll, carotenoids, Relative Water Content (RWC), Iron foliar, Zinc foliar,

Abstract :

 One of the most important applications of nanotechnology in agriculture is the use of Nanofertilizers to feed plants to improve plant nutrition and minimize the costs of environmentalprotection, and hydroponic cultivation, due to the lack of environmental pollution to the soil, isa suitable method. To produce agricultural products. For this purpose, a factorial study wasconducted in the form of a complete randomized design with three replications in a greenhouselocated in Nazarabad, Karaj, on Italian basil as hydroponic cultivation. The treatments of thisexperiment include foliar application of humic acid at three levels (no consumption control ascontrol, 500, 1000 mg.l-1), foliar application of micronutrients at three levels (0, iron Nanochelate and zinc Nano chelate) and solution Spray of cytokinin hormone was at two levels (0and 100 μM). The results showed that after increasing in humic acid concentration, the yieldand quality traits of Italian basil increased and foliar application of micronutrients (iron andzinc) as well as cytokinin hormone increased the traits studied compared to the control. Humicacid 1000 mg.l-1 × Nano-chelate on × cytokinin leads to an increase of 39.99% and also theinteraction of humic acid 1000 mg/l iron Nano-chelate × cytokinin gained to 115.34% increasein plant dry weight ratio Witnessed.