Iranian Journal of Medicinal and Aromatic Plants Research

Improvement and breeding

Effects of jasmonic acid and 24-epi brassinolid on quantitative and qualitative yield of Nigella sativa L. under salinity stress condition

A. Barghi; A. Gholipouri

Volume 36, Issue 5 , November and December 2020, , Pages 837-850

https://doi.org/10.22092/ijmapr.2020.342501.2761

Abstract

Salinity is one of the most common abiotic stresses, which causes a high decrease in crop production. Growth regulators play an important role in plant growth and development under normal and stress conditions. To study the effects of foliar application of jasmonic acid and 24-epibrassinolide on yield ... Read More Salinity is one of the most common abiotic stresses, which causes a high decrease in crop production. Growth regulators play an important role in plant growth and development under normal and stress conditions. To study the effects of foliar application of jasmonic acid and 24-epibrassinolide on yield and yield components, oil and essential oil percentage and some physiological characteristics of black cumin (Nigella sativa L.) under salinity stress conditions, a factorial experiment based on the randomized complete block design was conducted in the research greenhouse of Mohaghegh Ardabili University with three replications. The treatments included salinity at four levels (0, 5, 10 and, 15 ds.m-1 NaCl) and plant growth regulators at three levels (control, 0.1 mmol 24-epibrassinolide, and 0.5 mmol jasmonic acid). Results of mean comparisons indicated that salinity stress decreased plant yield, number of seeds per capsule, number of capsules per plant, and seed oil percentage, while significantly increased 1000-seed weight and proline content. Growth regulators also increased 1000-seed weight and seed oil percentage and decreased proline content. Chlorophylls a and b contents of the leaves decreased with increasing salinity levels, and the use of jasmonic acid and 24-epibrassinolide increased their amounts at all salinity levels. Malondialdehyde content increased with increasing salinity levels, and plant growth regulators foliar spray decreased its content at all stress levels. Besides, the percentage of seed essential oil increased with increasing salinity levels and also with plant growth regulators application at all salinity levels. It is recommended to foliar spray the plant with 24-epibrassinolide and jasmonic acid growth regulators under salinity conditions to avoid stress damages and increase black cumin essential oil, which is a very important compound in the pharmaceutical industry, as well as to enhance seed oil percentage, 1000-seed weight, and photosynthetic pigments of black cumin.

Effects of inoculation of seeds with different strains of bacteria and mycorrhizal fungi on growth, essential oil production, biochemical and physiological characteristics of basil (Ocimum basilicum L.)

E. Farajzadeh Memari Tabrizi; M. Roshdi Maleki; N. Farajzadeh Memari Tabrizi; V. Ahmadzadeh

Volume 34, Issue 5 , November and December 2018, , Pages 805-819

https://doi.org/10.22092/ijmapr.2018.121269.2287

Abstract

The aim of this study was to investigate the effects of seed treatment on different strains of bacterial biofertilizers (control, Azosperilium 21, pseudomonas 168, istofyu, her bacillus and a combination of strains) and different strains of mycorrhizal fertilizer (control, Glomus mossae, G. intradices, ... Read More The aim of this study was to investigate the effects of seed treatment on different strains of bacterial biofertilizers (control, Azosperilium 21, pseudomonas 168, istofyu, her bacillus and a combination of strains) and different strains of mycorrhizal fertilizer (control, Glomus mossae, G. intradices, G. hoei and all three strains of mycorrhiza) on growth, essential oil yield, and physiological characteristics of basil (Ocimum basilicum L.). Experiments were carried out in 2009 as split plot based on randomized complete block design with three replications in the farms of the Malakan Islamic Azad University. The measured traits were crop height, leaf area, chlorophyll index, chlorophyll a content, chlorophyll b content, number of stomata in the leaf surface, number of stomata in the substrate, essential oil content, essential oil yield, dry matter yield, glycol peroxidase, catalase and proline. In this study, mycorrhizal fertilizer treatments had a positive effect on the growth and yield of basil essential oil. In addition to the improvement of growth indices, physiological parameters including chlorophyll a and b contents, number of stomata and antioxidant content increased as a result of application of manure. The essential oil yield increased by 16.1%, 11.9% and 17.9%, respectively, due to the application of Azospirilum 21, application of bacteria, and the combined application of bacterial biofertilizer strains. This increase was mainly due to the increase in the percentage of basil essential oil. Contrary to growth characteristics, physiological characteristics such as chlorophyll a and b content and antioxidant content were positively affected by the use of bacterial biofertilizer. According to the results of this study, the application of Azospirilium 21, application of the bacteria, and the combined application of bacterial biofertilizer strains along with each of the mycorrhizal fungi strains will increase the qualitative and quantitative properties of basil essential oil.

COMPOUND RECOGNITION IN ESSENTISL OIL OF HYSSOPUS OFFICINALIS

M. Najafpour Navaei

Volume 11, Issue 1 , February 2002, , Pages 25-35

Abstract

Hyssopus officinalis, a medicinal plant, has been as a healer in ancient times. Works of Avicina and Hippocrates, thisplant has several times been mentiond, According to the recent scientists also it has positive affect on treatment of asthma, bronchitis,herpes simplex(1) , and HIV virus (6). The main ... Read More

Articles in Press

Current Issue

Volume 40 (2024)

Volume 39 (2023)

Volume 38 (2022)

Volume 37 (2021-2022)

Volume 36 (2020-2021)

Volume 35 (2019-2020)

Volume 34 (2018-2019)

Volume 33 (2017-2018)

Volume 32 (2016-2017)

Volume 31 (2015-2016)

Volume 30 (2014-2015)

Volume 29 (2013-2014)

Volume 28 (2012-2013)

Volume 27 (2011-2012)

Volume 26 (2010-2011)

Volume 25 (2009-2010)

Volume 24 (2008-2009)

Volume 23 (2007-2008)

Volume 22 (2006-2007)

Volume 21 (2005-2006)

Volume 20 (2004-2005)

Volume 19 (2003-2004)

Volume 18 (2003)

Volume 17 (2003)

Volume 16 (2003)

Volume 15 (2003)

Volume 14 (2003)

Volume 13 (2002)

Volume 12 (2002)

Volume 11 (2002)

Volume 10 (2001-4)

Volume 9 (2001-3)

Volume 8 (2001-2)

Volume 7 (2001-1)

Volume 6 (2000)

Volume 5 (2000)

Volume 4 (1999)

Volume 3 (1999)

Volume 2 (1999)

Volume 1 (1999)

Keywords = essence

Effects of jasmonic acid and 24-epi brassinolid on quantitative and qualitative yield of Nigella sativa L. under salinity stress condition

Abstract

Effects of inoculation of seeds with different strains of bacteria and mycorrhizal fungi on growth, essential oil production, biochemical and physiological characteristics of basil (Ocimum basilicum L.)

Abstract

COMPOUND RECOGNITION IN ESSENTISL OIL OF HYSSOPUS OFFICINALIS

Abstract