Effect of Salinity and Some Bio-Compounds on Growth, Essential Oil Yield and Chemical Composition of Marjoram Plants

Abstract

Two field experiments were carried out at Baramoon Experimental Station, Dakahlia Governorate, Egypt, during the two successive seasons of 2006/2007 and 2007/2008 to study the marjoram (Majorana hortensis Mnch) potential to survive under salinity condition and to find out the effect of some bio-fertilizers on this potential. The present investigation were planed to test (4) levels (0, 2000, 4000 and 6000 ppm) of saline water irrigation, as well as foliar nutrition of some bio-compounds i.e., (EM), Novatrein and Askobein as mixtures and their interactions on plant growth, essential oil, quantity and quality of marjoram. Marjoram plants showed a quite tolerance to salinity at 2000 ppm, whereas the excess concentrations(4000 and 6000 ppm) caused a severe damage to the irrigated plants. A remarked reduction in fresh and dry weights of plant, survival percentage, essential oil percentage and its components under different salinity concentrations. Gas Liquid Chromatography showed that saline water irrigation at levels of 2000 and 4000 ppm slightly decreased the percentages of main components whereas 6000 ppm caused vanishing of some constituents and caused severe harmful to oil principals. All bio-compounds i.e., (EM) and both of Novatrein or Askobein, slightly caused significant increments in the plant growth characters and displayed the best estimates in the two seasons. Application of these compounds raised the plant potential to tolerate salinity and simulation increased the survival percentage. In addition, utilizing these compounds slightly increased oil active principals and could overcome the harmful effect of saline irrigation water.

Influence Potassium Humate on Rosemary Plants Grown in Sandy Soil Under Irrigation With Saline Water

“…The gained findings are in harmony with those described by Aziz and Youssef (2001), Kiarostami et al (2010), Langroudi and Sedaghathoor (2012), Ali and Attia (2015), Abdelkader et al (2019), andEl-Kholy et al (2020) on Rosmarinus officinalis; Hendawy and Khalid (2005) on sage plant; and Shalan et al (2006), Massoud et al (2009), Jelali et al (2011 on marjoram plants. In contrast, Hendawy et al (2019) revealed that chamomile plants were highly resistant to salinity stress as increased flower yields were observed under high-salinity stress.…”

Effect of some Natural Compounds on Reducing the Effect of Saline Water Irrigation on Marjoram Plants

“…The role of FYM, Putrescine and K & P natural rocks in elevated the harmful effects of salinity and/or improving marjoram or other medicinal and aromatic plants were mentioned by some authors such as Massoud et al, (2009), Jelali et al, (2011) and (Mangaia and Ravi 2012) on sweet marjoram plants; Gonzalez-Hernandez et al, (2022) and Ali (2000) on reducing the harmful effects of salinity on aromatic & medicinal plants, and Parihar et al, (2015).…”

“…Majorana hortensis plant commonly known "sweet marjoram" is one of family Lamiaceae member. Cyprus and eastern Mediterranean countries considered as original zone of marjoram plant (Massoud et al, 2009). Moreover , marjoram could propagated by cuttings and seeds (Shalan et al, 2006;Abbassy et al, 2009 andMassoud et al, 2009).…”

“…Cyprus and eastern Mediterranean countries considered as original zone of marjoram plant (Massoud et al, 2009). Moreover , marjoram could propagated by cuttings and seeds (Shalan et al, 2006;Abbassy et al, 2009 andMassoud et al, 2009). Marjoram plant distinguished by a sweet, spicy pleasant odor (Verma et al, 2010).…”