The effect of Bacillus subtilis on Growth and Crocin Content of Saffron
کد مقاله : 1154-11THCBIOCONTROL (R1)
فهیمه صالحی *1، میترا اعلائی2، نجم الدین مرتضوی2
1گروه R@D شرکت دانش میوه خاورمیانه
2گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران
چکیده مقاله:
Biofarming stands as a suitable alternative to preserve soil fertility currently. A potential way to limit chemical fertilizers is to utilize bacteria. The aim of this study is to explore the impact of varied concentrations of Bacillus subtilis on the morphophysiological characteristics of saffron within two years. In this examination 4 treatments with 3 replications were considered including two ecotypes saffron (Zanjan and Natanz) and 4 concentrations of B. subtilis (102, 105, 106, 108 cfu/ml), alongside a control (devoid of bacterial application). Morphophysiological attributes such as flower yield, flowering duration, total weight of corm, petal phenol and antioxidant, and crocin content were measured. All these traits displayed significant variations influenced by the varying bacteria concentrations and saffron ecotypes. The controlled plants exhibited the highest number of flowering days in both years (53.833 and 42 days, respectively), while the 108 cfu/ml treatment showed the fewest flowering days (33.83 and 28.33 days, respectively). Moreover, the concentration of 108 cfu/ml resulted in the highest flower yield (26.09 g/m2) compared to the control (17.13 g/m2). The Natanz saffron demonstrated a higher yield (28.45 g/m2) than the Zanjan saffron. Bacterial treatments at 108 cfu/ml yielding were the highest total corm weight (98.39 gr) against the control (46.28 gr). The assessment of saffron metabolites HPLC revealed a significant increase in crocin content (30.89%) in the treated sample (108 cfu/ml) compared to the control. These findings indicate the considerable influence of B. subtilis on enhancing the quality characteristics of saffron.
کلیدواژه ها:
Bacteria, Crocin, Saffron, Stigma, Total phenol
وضعیت : چکیده برای ارائه به صورت پوستر پذیرفته شده است