Paper Information

Journal:   JOURNAL OF PLANT PRODUCTION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)   2017 , Volume 24 , Number 3 #A0046; Page(s) 137 To 141.
 
Paper: 

EFFECT OF PLANTING DENSITY ON SOME PROPERTIES OF PEPPERMINT (MENTHA PIPERITA L.) IN GREENHOUSE (SHORT TECHNICAL REPORT)

 
 
Author(s):  AMANI M.*, OLFATI J.A.
 
* DEPT. OF HORTICULTURAL SCIENCE, UNIVERSITY OFGUILAN, IRAN
 
Abstract: 

Background and objectives: Peppermint (Mentha piperita L.) is a perennial herb belonging to the family Lamiaceae. One of the most important factors in crop production management is determination of appropriate planting density. Plant density is an important factor in determining the micro environment in the mint field. The optimization of this factor can lead to a higher yield in the mint. This study was undertaken to know the effect of plant density on some properties of peppermint and introduce suitable plant density for peppermint cultivation in greenhouse condition.
Materials and methods: In order to evaluate the effect of planting density on some characteristics of peppermint a study was conducted in a completely randomized design with three replications at university of Guilan during 2016. Planting density with four levels including 6, 9, 15 and 30 plants m-2 was investigated in present research. The soil of field was loamy with pH 7.4, containing 1% total N and 1% C. At harvest, total leaf dry and fresh yield, oil yield, number of lateral branches per plant, plant fresh and dry weight and plant height were determined.
Results: Results indicated that the highest number of leaf, node and branch, leaf dry and fresh yield was related to 6 plants m-2 .Fresh weight of plant reduced 73.45% in 30 plants m-2 compare to 6 plants m-2. 6 plants m-2 density had highest percent of essential oil content (2.25 %) in different level of planting density. The effect of plant density on growth and development is largely due to change in the interception of radiant energy, the low plant density leads to higher interception and consequently to the greater growth of peppermint. The commercial production of peppermint depends on the ecological conditions affecting yield and quality. Low plant density have higher fresh herbage yield, while moderate plant density have higher oil yield.
Conclusion: The results indicated that there were significant differences between cultivation plant densities in all measured characteristics. The results also showed that the best plant density to improve some important properties of peppermint was 6 plants m-2. According to the results increasing plant density only to 15 plant m-2 is advisable.

 
Keyword(s): ESSENCE EFFICIENCY, MORPHOLOGICAL TRAITS, PEPPERMINT, PLANTING DENSITY
 
References: 
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