Paper ID: 92

EVALUATION OF SORGHUM GROWTH AND BIOMASS PRODUCTION ON CADMIUM CONTAMINATED PADDY FIELD

Authorship

Nur Azizah Uswatun Hasanah1*, Puji Harsono2, Edi Purwanto2, Samanhudi2

Doctoral Program of Agriculture Science, Graduate School, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta, 57126, Central Java, Indonesia.*email: izahazizah.ia@gmail.com.

Departement of Agrotechnology, Faculty of Agriculture, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta, 57126, Central Java, Indonesia.

izahazizah.ia@gmail.com

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Abstract

The use of agrochemicals that exceed doses and over-exploitation of land for an agricultural commodity contribute to increasing cadmium concentration. Sorghum is a multifunctional crop which has potential as a heavy metal remediation plant. This study aimed to evaluate six sorghum varieties for growth and biomass production on cadmium contaminated paddy fields. The study was carried out in paddy fields without crop rotation and technical irrigation The study was arranged in a complete randomized factor group with four replications. Six sorghum varieties tested were: Super 1, Samurai, Suri 3, Numbu, Kawali, and Blacksorghum. These varieties were planted with cadmium contaminated paddy fields. Generally, sorghum varieties can grow in cadmium contaminated paddy fields. Three of the six varieties tested namely Super 1, Samurai, and Kawali have advantages in growth such as plant height, leaf area, leaf chlorophyll levels, plant growth rate, and net assimilation rate. A large biomass production is also shown by these three varieties. The results in this study will be described and used as a reference to test the ability of sorghum varieties in absorption and accumulation of cadmium in plant organs.

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