Efficacy of biological agents and fillers seed coating in improving drought stress in anise

Author:

Hoseini Atefeh,Salehi Amin,Sayyed R. Z.,Balouchi Hamidreza,Moradi Ali,Piri Ramin,Fazeli-Nasab Bahman,Poczai Peter,Ansari Mohammad Javed,Obaid Sami Al,Datta Rahul

Abstract

Many plants, including anise, have tiny, non-uniform seeds with low and light nutrient reserves. The seeds also show a weak establishment, especially under stressful conditions where their accurate planting in the soil and optimal yield are tough. This study sought to improve anise seeds’ physical and physiological characteristics under drought stress. To this end, two factorial experiments under laboratory and greenhouse conditions were performed in a completely randomized design with 4 and 3 replications, respectively. Five levels of seed inoculation (inoculation with T36 and T43 ofTrichoderma harzianum, and CHA0 and B52 ofPseudomonas fluorescent, and non-inoculation which means that control seeds were not treated with microbial inoculant), three levels of coating (K10P20, K10P10V5, and non-coating), and three levels of drought stress (0, –3, and –6 bars) were considered as the factorial experiment [vermiculite (V), kaolin (K), and perlite (P) numbers refer to the amount of material used in grams]. The laboratory experiment revealed that the combined treatments of bio-agents with coating increased the physical and germination characteristics of anise seeds compared to the control treatment. The greenhouse experiment showed that drought stress reduced the initial growth indices. Still, the combination treatments of biological agents and coating (fillers) could alleviate the destructive effects of drought stress to some extent and improve these indices. The best treatment was provided by T36 and K10P20 in both experiments, which significantly increased morphological indices.

Funder

Yasouj University

Helsinki Institute of Life Science, Helsingin Yliopisto

Publisher

Frontiers Media SA

Subject

Plant Science

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