Triacontanol-mediated regulation of growth and other physiological attributes, active constituents and yield of Mentha arvensis L.

Abstract

Triacontanol (TRIA) has been realized as a potent plant growth promoting substance for a number of agricultural and horticultural crops. Out of a large number of essential oil bearing plants, mint (Mentha arvensis L.) constitutes the most important source of therapeutic agents used in the alternative systems of medicine. The mint plant has marvelous medicinal properties. In view of enhancing growth, yield and quality of this medicinally important plant, a pot experiment was conducted according to simple randomized block design. The experiment was aimed at studying the effect of four concentrations of TRIA (10 -0 , 10 -7 , 10 -6 and 10 -5 M) on the performance of mint with regard to growth and other physiological attributes, crop yield and quality attributes and the yield and contents of active constituents of the plant. The growth and other physiological parameters as well as yield and quality attributes were studied at 100 and 120 DAP. The foliar application of TRIA at 10 -6 M concentration significantly enhanced most of the growth and other physiological attributes, crop herbage yield and the yield and content of active constituents (menthol, L-methone, isomenthone and menthyl acetate) of mint at both the stages. However, the next higher concentration of TRIA (10 -5 M) exhibited slightly negative effect and did not further increase the values of the attributes studied, but it proved significantly better than the control. Application of TRIA significantly enhanced the yield and content of all the active constituents determined by GLC technique.

Triacontanol: a potent plant growth regulator in agriculture

“…The TRIA alone or in combination with gibberellic acid significantly enhanced the activities of NR and CA in artemisia and coriander ). Moreover, a remarkable enhancement in the activities of NR and CA in hyacinth bean, coffee senna and mint was reported by Naeem et al (2009Naeem et al ( , 2010Naeem et al ( , 2011 as a result of TRIA application. Naeem et al (2009) reported significant effect of foliar application of TRIA on N, P, K, and Ca content of leaves in hyacinth bean.…”

“…Similarly, TRIA alone or in combination with gibberellic acid (1.5 mg L Á1 of TRIA'75 mg L Á1 of GA 3 ) significantly increased the net photosynthetic rate, stomatal conductance and internal CO 2 concentration in Artemisia annua . Moreover, Naeem et al (2009Naeem et al ( , 2010Naeem et al ( , 2011 also found the significant effect of TRIA on photosynthetic parameters regarding hyacinth bean (Lablab purpureus L.), coffee senna (Senna occidentalis L.), and Japanese mint (Mentha arvensis L).…”

“…Exogenous application of TRIA has been reported to regulate directly or indirectly several physiological and biochemical processes Ries 1991;Ries et al 1993;Naeem et al 2009Naeem et al , 2010Naeem et al , 2011. Application of TRIA to barley roots resulted in a rapid stimulation of membrane associated Ca 2 ' / Mg 2 ' dependent ATPase activity (Lesniak et al 1986) in a calmodulin-dependent manner.…”

Penggunaan biostimulan Orgamin untuk efisiensi pemupukan dan peningkatan produktivitas kelapa sawit di dataran tinggi Application of Orgamin biostimulan to enhance fertilizer efficiency and productivity of oil palm grown in highland

“…Senyawa yang secara alami terdapat pada tanaman alfafa ini (Ries et al, 1977), dilaporkan memiliki aktivitas pemacu pertumbuhan tanaman (Laughlin et al, 1983). Aplikasinya pada beberapa tanaman dilaporkan meningkatkan pertumbuhan dan produktivitas tanaman secara signifikan (Kilic, 2010;Khan, 2009;Naeem, 2011). Secara genetika molekuler, aktivitas pemacu pertumbuhan pada tanaman dari TRIA ini terjadi melalui peningkatan ekspresi gen-gen yang menyandi protein-protein yang berperan dalam fotosintesis dan respirasi tanaman.…”

Changes in growth, yield, photosynthetic characteristics, enzyme activities and essential oil production of fennel (Foeniculum vulgareMill.) under growth regulator treatments

“…Fennel (Foeniculum vulgare Mill. ), belonging to the Apiaceae family, is an annual, biennial or perennial aromatic herb, depending on the variety (2)(3)(4)(5)(6)(7)(8)(9). It is a high value medicinal crop used as a stimulant, diuretic, digestive, carminative, sedative, galactagogic, emmenagogic, expectorant and antispasmodic agent (2,3,10,11).…”