Effect of Cycocel growth regulator on yield and yield components of Wheat under drought stress conditions

Subject Areas : Crop Production Research

Ali Noshirvani ¹ , Shahram Mehri ² , Hossein SoleymanZadeh ³ , Saeed AkbariMehr ⁴

1 - Moghan Uni
2 - Islamic Azad University, Parsabad Branch
3 - Moghan Uni
4 - Takestan Uni

Received: 2023-05-05 Accepted : 2023-06-12 Published : 2024-08-16

Keywords: Cycocel, Drought stress, Wheat,

Abstract :

In order to investigate the effect of cycocel foliar application on the yield and yield components of cultivar wheat (Kuhdasht) under drought stress conditions, an experiment was carried out at the research station of the Agricultural Research, Education and Extension Center of Ardabil Province (Moghan) during the crop year (1399-1400). . The experiment was conducted as a factorial in the form of a randomized complete block design with three replications. The first factor includes cycocel with concentrations (zero (S1), (S2) 400, (S3) 800 and (S4) 1200 mg/liter) and the second factor includes drought stress in 3 levels of full irrigation (control) (D1), interruption of irrigation They were in the spike stage (D2) and stop irrigation in the seed filling stage (D3). The results showed that with increasing concentration of cycocel plant height, spike per plant, seed per spike, biological yield, thousand seed weight, stem weight. In drought stress, the highest number of seeds per spike, spike per plant, 1000 seed weight and stem weight were obtained in the spike stage. In water stress, the highest plant and stem height was obtained in the seed filling stage. The lowest number of seeds per spike, spike per plant, plant height, thousand seed weight, leaf weight, stem weight were obtained in foliar spraying with a concentration of 0 mg/liter with the control treatment. cycocel increased all traits compared to the control, and this indicates an increase in plant resistance with the use of cycocel. Finally, it seems that with foliar spraying with a concentration of 800 mg/liter and drought stress in the seed filling stage, a higher yield can be achieved. acquired.