Investigation of reflective mulches effect on soybean physiology character at low light intensity

Paper Details

Research Paper 01/04/2017
Views (327) Download (24)

Investigation of reflective mulches effect on soybean physiology character at low light intensity

Syahrun Mubarak, Impron, Tania June
Int. J. Agron. Agri. Res.10( 4), 50-56, April 2017.
Certificate: IJAAR 2017 [Generate Certificate]


The effort to scale up soybean production is by agro forestry system. However, these conditions give a response to the plants because the light is reduced by the canopy of trees so that affects the plant microclimate and plant physiology. This study aimed to analyze the effect of using reflective mulch to physiology character and soybean production in shaded and not shaded conditions. The efforts to increase the light that reach the plants is by using reflector. The research conducted in Bogor, West Java Indonesia using nested design-two factors model, the first factor had two levels, respectively shade 50% (N50%) and without shade (N0%). The second factor had reflector mulches three levels, respectively black silver mulch (MP-PH), metalic mulch (MP-MA) and without mulch (M0). The results showed that the using of reflective mulch in 50% shade condition were able to give a positive response to physiology and crop production. The using of mulch increased the rate of plants photosynthesis significantly in 50% shade condition 14.52μmol μmol CO2.m².s-1 for the black and silver mulch and 18.17μmol CO2.m².s-1 for metalic mulch, whereas only 12.61μmol CO2.m².s-1 for the control (M0). The increase of photosynthesis rate was positively correlated in the increase of crop yields 4.79 and 4.79 tons/ha respectively for metallic mulch and silver black mulch, whereas 2.93 tons/ha for without mulch in 50% shade condition. In 0% shade condition, the potential yield were 5.17, 4.11, 3.43 tons/ha respectively for silver black mulch, metallic mulch, and without mulch.


Central of Statistics BPS. 2015. Food Crop Production 2015. BPS catalog: 5203014. The Central Bureau of Statistics. Jakarta, Indonesia.

Jufri Akhmad. 2006. Adaptation Mechanism of Soybean [Glycine max (L) Merrill] to Low Light Intensity Stress. Magister thesis, Bogor Agricultural University, Indonesia.

June T. 2002. Environmental effects on photosynthesis of c3 plants: scalling up from electron transport to the canopy (stude case: Glycine max L. merr). Doctor thesis, Australia National University, Canberra, Australia.

Khumaida N, Takami Y, Sopanie, takano T. 2001. Adaptability of soybean to shade stress: Expression of photosynthetic genes in soybean genotypes. Proceeding of the Seminar To ward Harmonization between Development and environmental conservation in biological production. Toyo University, Japan, February 21-23, 2001.

Lersten N K, Carlson JB. 1987. Vegetative Morphology in J.R. Wilcox (Ed) pp 51-94. Soybean Improvement, Production, and Uses. Am. Soc. Agron. Madison.

Manurung GES, Roshetko JM, Budidarsono S, Kurniawan I. 2008. Dudukuhan tree farming systems in West Java: How to mobilize self-strengthening of community-based forest management?, In: Snelder, DJ & Lasco, R (Eds), Smallholder tree growing for rural development and environmental services, World Agroforestry Centre (ICRAF) ICRAF, Bogor, Indonesia.

Mejias Barrera P. 2012. Effect of crushed glass, used as a reflective mulch, on Pinot noir performance. Submitted in partial fulfilment of the requirements for the Degree of Master of Horticultural Science. Thesis Lincoln Universiy, Christchurch, New Zaeland.

Meyer GE, Paparozzi ET, A Walter SE, Blankenship E, Adams SA. 2012. An investigation of reflective mulches for use over capillary mat systems for winter‐time greenhouse strawberry production. Applied Engineering in Agriculture. American Society of Agricultural and Biological Engineers ISSN 0883-8542.

Muhuria LA. 2007. Mechanism of physiology and heredity tolerant characters in heritance of soybean (Glycine max L) to low light intensity. Magister thesis, Bogor Agricultural University, Indonesia.

Ribeiro VR, Eduardo CM, Ricardo FO. 2006. Temperature response of photosynthesis and its interaction with light intensity in sweet orange leaf discs under non photo respiratory condition. Journal Cienc Agrotec Lavras 30(4), 670-678.

Velasco L, Fernandez Mrtinez JM, De Haro A. 2001. Inheritance of trichome density in ethopian mustard leaves. Euphytica 117, 241-244.