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Current Journal of Applied Science and Technology

Current Journal of Applied Science and Technology, ISSN: 2457-1024; 2231-0843 (old),Vol.: 28, Issue.: 3


Effect of Different Shade Levels on Growth, Physiology and Biochemical Characteristics of Small Cardamom (Elettaria cardamomum Maton)


M. Alagupalamuthirsolai1*, S. J. Ankegowda1 and K. S. Krishnamurthy2

1ICAR-Indian Institute of Spices Research, Regional Station, Madikeri, Karnataka– 571201, India.

2ICAR-Indian Institute of Spices Research, Kozhikode, Kerala-673012, India.


Article Information


(1) Dr. Orlando Manuel da Costa Gomes, Professor of Economics, Lisbon Accounting and Business School (ISCAL), Lisbon Polytechnic Institute, Portugal.

(2) Dr. Teresa De Pilli, Assistant Professor, Department of Science of Agriculture of Food of Environment (SAFE), University of Foggia, Via Napoli, Italy.


(1) Satya S. Narina, USA.

(2) Santosh Kumar, Indian Agricultural Research Institute, India.

(3) Miguel Aguilar Cortes, Universidad Autónoma del Estado de Morelos, Mexico.

Complete Peer review History: http://www.sciencedomain.org/review-history/25447




Elettaria cardamomum was grown under shade levels (75% shade, 50% shade and open irradiance) to evaluate its photosynthetic characteristics, physiology and biochemical characters. The highest net photosynthetic rates and stomatal conductance were observed under 75% shade, followed in descending order by 50% and open condition. The highest quantum yield of photosystem II was observed under 50% shade. As shade level increased, Chl a,Chl b and total Chl contents also increased significantly. The total number of opened stomata generally displayed the best activity in leaves subjected to 75% shade. The highest total phenol and epicuticular wax contents were observed in open irradiance treatment and highest proline level was observed in plants subjected to the 50% shade treatment.  The results indicate that increased plant height, chlorophyll and proline contents and higher quantum yield of Photosystem II and stomatal activity may play an essential role in shade adapting mechanism in small cardamom.


Keywords :

Shade; photosynthesis; stomatal behaviour; proline; phenolic content; epicuticular wax; small cardamom.


Full Article - PDF    Page 1-9    Article Metrics


DOI : 10.9734/CJAST/2018/42040

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