The effects of biofertilizers on physiological traits and biomass accumulation of red beans (Phaseolus vulgaris cv.Goli) under water stress

Iranian Journal of Plant Physiology

مقاله 6، دوره 8، شماره 4، آبان 2018، صفحه 2555-2562   

نوع مقاله: Original Article

شناسه دیجیتال (DOI): 10.30495/ijpp.2018.543427

نویسندگان

Saeid Chavoshi¹؛ Ghorban Nourmohamadi¹؛ Hamid Madani^{* 2}؛ Hossein Heidari Sharif Abad¹؛ Mojtaba Alavi Fazel³

¹Department of Agronomy, Islamic Azad University, Science and Research Branch, Tehran, Iran

²Departments of Agronomy, Islamic Azad University, Arak Branch, Arak, Iran

³Departments of Agronomy, Islamic Azad University, Ahvaz Branch, Ahvaz, Iran

چکیده

This field experiment was executed as the split plot in a randomized complete block design with three replications in 2014. In a red bean irrigated farm, halt irrigation was implemented in main plots and the treatments included the control (full irrigation) and halt irrigation at vegetation, flowering, and pod development stages. In subplots utilization of biofertilizers were applied at four cases of control, phosphorus solubilizing bacteria, potassium solubilizing bacteria, and combined application of these bacteria in soil. Results showed that halt irrigation and biofertilizers had significant interaction on red bean biomass. Normally, to achieve the highest biomass full irrigation and application of phosphorus and potassium solubilizing bacteria (8023 and 7978 kg ha-1) are suggested. But the use of biofertilizers instead of chemical fertilizers led to more water efficiency under low water condition. Finally, our results showed that maximum biomass in red bean (about 7985 kg. ha^-1) was recorded in ecological nutrition management under limited water resources. In other words, halt irrigation at flowering stage was compensated by Bio-P and Bio-K fertilizer application as a logical method to mitigate and moderate biomass losses about 37%.
 

کلیدواژه‌ها

bio fertilizer؛ Water stress؛ red beans؛ biomass accumulation؛ Chlorophyll