Jasmonates Improve Flowering at the expense of Runner Production in Strawberry

Author: Mohammad Javad Mahdavi and Rahele Seifi

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Abstract

Now a days, hydroponically strawberry production in greenhouse is noticeably increasing in Iran, however there are several problems including low yield, low fruit quality, misshaped fruits and susceptibility to environmental stresses. Using of plant growth regulators is a important means to ameliorate above mentioned problems. Therefore, in this research the effect of foliar application of Jasmonic Acid(JA) at the rate of 0, 0.5, 1, 1.5 and 2 mM and Methyle Jasmonate(MJ) at the rate of 0, 0.25, 0.5, 1 and 1.5 on flowering, and runner production of strawberry cultivars (Paros and Selva) was investigated. Results indicated that both JA and MJ at the rate of 1.5 mM produced the greatest number of flower and inflorescence per plant. JA at concentrations of 1.5 and 2 mM and MJ at 1.5 mM significantly decreased the number of runners.

Keywords

Fragria ananassa Duch., Jasmonic acid, Methyle Jasmonate, Runnering.

Conclusion

Now a days, hydroponically strawberry production in greenhouse is noticeably increasing in Iran, however there are several problems including low yield, low fruit quality, misshaped fruits and susceptibility to environmental stresses. Using of plant growth regulators is a important means to ameliorate above mentioned problems. Therefore, in this research the effect of foliar application of Jasmonic Acid(JA) at the rate of 0, 0.5, 1, 1.5 and 2 mM and Methyle Jasmonate(MJ) at the rate of 0, 0.25, 0.5, 1 and 1.5 on flowering, and runner production of strawberry cultivars (Paros and Selva) was investigated. Results indicated that both JA and MJ at the rate of 1.5 mM produced the greatest number of flower and inflorescence per plant. JA at concentrations of 1.5 and 2 mM and MJ at 1.5 mM significantly decreased the number of runners.

References

Strawberry (Fragaria x ananassa Duch.) is a dicotyledonous plant belongs to Rosaceae family. According to FAO, high portions of strawberry production comes from United states, Spain, Japan, Poland, Italy and south korea (FAO, 2006). Strawberry production under hydroponic conditions in greenhouse is an ever increasing industry. Although there are some problems such as low yield, poor quality and sensitivity to indoor conditions (Eshghi and Jamali, 2009). Production of fruits with high quantity and quality is among the general goals of growing strawberry in greenhouse. Usage of plant bioregulators such as Jasmonic acid (JA) has been the subject of many studies, for improving the yield and quality of fruits in different species but literatures on strawberry are relatively limited. So the aim of this investigation was to evaluate the effect of JA on vegetative and reproductive growth of 2 strawberry cultivars: ' Paros' and 'Selva'. MATERIALS AND METHODS For assessing the effect of JA on

How to cite this article

Mohammad Javad Mahdavi and Rahele Seifi (2017). Jasmonates Improve Flowering at the expense of Runner Production in Strawberry , Biological Forum – An International Journal 9(1): 131-132.