Flower Biomass, Essential Oil Production and Chemotype Identification of Some Iranian Matricaria chamomilla Var. recutita (L.) Accessions and Commercial Varieties

Matricaria chamomilla is one of the most important medicinal herbs. The aim of this study was to investigate irrigation and N-fertilization effect on German chamomile yield and essential oil production. For the purposes of this study, field experiments were established at the Experimental Farm of the University of Thessaly, Larissa, Greece, in 2016 and 2017. The experimental design was a factorial split-plot design with main factor irrigation (I1: rainfed, I2: 100% ETo) and sub factor N-fertilization (F1: 0, F2: 80, and F3: 160 kg ha-1) with four replications. Flower yield measured by samplings at the ideal collection stage (2/3 of the rounds of tubes have been opened on the elevated flowering plant). Essential oil content was determined, using a Clevenger-type distillation apparatus and essential oil analysis by a GC-MS on a fused silica DB-5 column. Irrigation had a significant effect on yield, with irrigated treatments producing higher yield in comparison with rainfed treatments (5,250 and 2,200 kg ha-1, fresh and dry flowers, respectively). Furthermore, N-application had also a significant effect on yield, with the higher N-supply producing higher yield. The highest yield and essential oil production were found for the irrigated and fertilized treatment with the higher N-dressing (I2F3, 3,800 and 25 kg ha-1 dry flowers and essential oil yield, respectively). Moreover, it was found that the irrigated treatments produced lower amount of essential oil, while N-fertilization had a positive effect on α-bisabolol and chamazulene and a negative effect on bisabolol oxide A. Although irrigation had a negative impact on the content of essential oils, the high increase in yield led to a maximization of the essential oil production for the irrigated cultivation with maximum nitrogen fertilization. Therefore, chamomile seems to be a promising annual cultivation in Greece which can be established in areas of similar environmental conditions producing satisfactory yields.

Download Full-text

Proliferating effect of radiolytically depolymerized carrageenan on physiological attributes, plant water relation parameters, essential oil production and active constituents of Cymbopogon flexuosus Steud. under drought stress

PLoS ONE ◽

10.1371/journal.pone.0180129 ◽

2017 ◽

Vol 12 (7) ◽

pp. e0180129 ◽

Cited By ~ 8

Author(s):

Minu Singh ◽

M. Masroor A. Khan ◽

Moin Uddin ◽

M. Naeem ◽

M. Irfan Qureshi

Keyword(s):

Drought Stress ◽

Essential Oil ◽

Oil Production ◽

Water Relation ◽

Plant Water ◽

Active Constituents ◽

Plant Water Relation ◽

Cymbopogon Flexuosus ◽

Physiological Attributes ◽

Essential Oil Production

Download Full-text

Essential Oil Production in Relation to Organogenesis in Tissue Cultures of Eucalyptus Citriodora Hook

Plant Cell Culture in Crop Improvement ◽

10.1007/978-1-4684-4379-0_29 ◽

1983 ◽

pp. 299-308 ◽

Cited By ~ 4

Author(s):

P. K. Gupta ◽

A. F. Mascarenhas

Keyword(s):

Essential Oil ◽

Oil Production ◽

Tissue Cultures ◽

Eucalyptus Citriodora ◽

Essential Oil Production

Download Full-text

Biomass production and essential oil yield from leaves, fine stems and resprouts using pruning the crown of Aniba canelilla (H.B.K.) (Lauraceae) in the Central Amazon

Acta Amazonica ◽

10.1590/s0044-59672012000300007 ◽

2012 ◽

Vol 42 (3) ◽

pp. 355-362 ◽

Cited By ~ 7

Author(s):

Adriana Pellegrini Manhães ◽

Valdir Florêncio da Veiga-Júnior ◽

Larissa Silveira Moreira Wiedemann ◽

Karenn Silveira Fernandes ◽

Paulo de Tarso Barbosa Sampaio

Keyword(s):

Essential Oil ◽

Oil Production ◽

Oil Yield ◽

Leaf Biomass ◽

Canopy Openness ◽

Tree Crown ◽

Wet Season ◽

Tree Cutting ◽

Essential Oil Yield ◽

Essential Oil Production

Aniba canelilla (H.B.K.) Mez. is a tree species from Amazon that produces essential oil. The oil extraction from its leaves and stems can be an alternative way to avoid the tree cutting for production of essential oil. The aim of this study was to analyse factors that may influence the essential oil production and the biomass of resprouts after pruning the leaves and stems of A. canelilla trees. The tree crowns were pruned in the wet season and after nine months the leaves and stems of the remaining crown and the resprouts were collected, in the dry season. The results showed that the essential oil yield and chemical composition differed among the stems, leaves and resprouts. The stems' essential oil production differed between the seasons and had a higher production in the resprouting stems than the old stems of the remaining crown. The production of essential oil and leaf biomass of resprouts were differently related to the canopy openness, indicating that light increases the production of the essential oil and decreases the biomass of resprouting leaves. This study revealed that plant organs differ in their essential oil production and that the canopy openness must be taken into account when pruning the A. canelilla tree crown in order to achieve higher oil productivity.

Download Full-text