اﺛﺮﺳﻄﻮح ﺗﻨﺶ ﺧﺸﻜﻲ و ﻛﻮدﻫﺎی آﻟﻲ ﺑﺮ ﻋﻤﻠﻜﺮد و درﺻﺪ ﻣﻮﺳﻴﻼژ ﮔﺎوزﺑﺎن(Borago officinalis)

n order to study the effects of drought stress and biofertilizers (compost and vermicompost) on yield and mucilage percent of borage (Borago officinalis) a field experimental was conducted in split plot design with three replications in 2012 at University of Zabol. Drought stress treatments included: S1: control (100% FC), S2: moderate stress (80%FC) and S3: severe stress (60% FC) as the main plot and application of biofertilizer: N1:control, N2: 40 ton compost ha-1, N3: 4 ton vermicompost ha-1 as sub plot. Results indicated that the drought stress had significant impact on dry weight of borago and decreased it compared with the control. But the use of organic fertilizers, composting, especially in stress levels could reduce the severity of the
effects of drought stress and a decrease in performance is not Dry yield (13482.6 kg/ ha) irrigation level that
significant control was achieved with a moderate stress level (80% field capacity) was. The greatest yield and
plant height, were obtained in no-stress along with application of 40 ton compost ha-1. Mucilage content
increased with increasing drought stress (80% FC) severity. Generally mild drought stress (80% field
capacity) were added to the percentage of mucilage.