The effect of water deficit levels and types of organic fertilizers on some quantitative traits, yield and mucilage percentage of borage (Borago officialis)
Subject Areas : Plant physiologyRaana gholinezhad 1 , میر مهدی هاشمی 2
1 - 4- Former Master's student in Medicinal Plants, University of Zabol
2 - کارمند شهرداری سیه رود
Keywords: Yield, borage, mucilage, compost, vermicompost,
Abstract :
In order to investigate the effects of drought stress and organic fertilizers (compost and vermicompost) on some quantitative traits, yield and mucilage percentage of borage, an experiment was conducted in split plots in a randomized complete block design with three replications in 2010 at Zabol University. The treatments included drought stress levels of 100% of field capacity (control), 80% of field capacity (mild stress) and 60% of field capacity (severe stress) as the main factor and organic fertilizer use including control (no fertilizer use), use of 40 tons of compost per hectare and use of 4 tons of vermicompost per hectare as secondary factors. The results showed that drought stress affected and reduced the dry weight of borage plants, but the use of organic fertilizers, especially compost, at stress levels was able to reduce the severity of drought stress effects and did not cause much reduction in yield. In terms of morphological traits, the highest plant height, number of leaves per plant and inflorescence height were obtained in the absence of drought stress using 40 tons per hectare of compost. In general, in mild drought stress (80 percent of field capacity), the percentage of mucilage was increased. In general, in order to produce dry yield of borage and have more mucilage, irrigation up to 80 percent of field capacity is required, but if the purpose of borage cultivation is to produce more flowers, complete irrigation with the use of compost seems appropriate.
Ali Khan, R. and Hussain Khan, M. 2006. Organic farming – composting and its mechanism. Connecting Agri - Community for better farming. Pakistan's Largest Agri.
Davis, W.J., and E. Volkenburg. 1995. The influence of water deficit on the factors controlling the daily patern of growth of Bean. Journal of Experimental Botany. 54: 987-99
Ghosh, P.K., K.K. Ajay, M.C. Bandyopadhyay, K.G. Manna, A.K. Mandal and K.M. Hati. 2004. Comprative effectiveness of cattle manure, poultry manure, phosphocompost and fertilizer-NPK on three cropping system in vertisols of semi-arid tropics. Dry matter yield, nodulation, chlorophyll content and enzyme activity. Bioresource Technology, 95: 85-93.
Harrison M.T., Tardieu F., Dong Z., Messina C.D., Hammer G.L. 2014.
Characterizing drought stress and trait influence on maize yield under current
and future conditions. Global Change Biology, 20: 867-878.
Hoffman, D. 2003. Medical herbalism. Canada, Healing Arts Press, 666 pp.
Hosseinzadeh, S.R., Amiri, H., Ismaili, A., 2016.Effect of vermicompost fertilizer on photosynthetic characteristics of chickpea (Cicer arietinum L.) under drought stress. Photosynthetica. 54 (1), 87-92.
Huerta, E., Vidal, O., Jarquin, A., Geissen, V., Gomez, R., 2010. Effect of vermicompost on the growth and production of Amashito Pepper, Interactions with Earthworms and Rhizobacteria. Compost Science and Utilization. 18, 282-288.
Laurence, R. 2004. Borage production for oil and gamma-linolenic acid. Rural Industries Development Corporation, Australian Government.
Mohammad khani, N., and R. Heidari. 2007. Effects of water stress on respiration, photosynthetic pigment and water content in tow maize cultivar. Pakistan Journal of Biological Science. 10(22): 4022-4028.
Pagter, M., Bragato C. and Brix, H. )2005) Tolerance and physiological responses of
Phragmites australis to water defcit. Aquatic Botany 81: 285-299.
Rotblatt, M., and I. Ziment. 2003. Evidence-based herbal medicine. Philadelphia, Hanley and Belfus Inc. 464 pp.
Yordanov, I., and T. Tsonev. 2003. Plant responses to drought and stress tolerance. Bulgarian Journal of Plant Physiology. 189- 206.
