Open AccessSorghum genotypes evaluation in drought-prone land of East Flores agroecosystem for biomass improvement with liquid organic fertilizer application
Author(s) -
Sigit Budi Santoso,
Suwarti,
Marcia B. Pabendon
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/460/1/012008
Subject(s) - sorghum , biomass (ecology) , agronomy , agroecosystem , panicle , plant stem , fertilizer , biology , sweet sorghum , organic fertilizer , agriculture , environmental science , ecology
Drought tolerant sorghum varieties cultivation on dryland areas is one of the potential sources of plant biomass to be used for bioethanol production. East Nusa Tenggara which has a short month of rainfall and mainly consists of drought-prone areas is suitable for sorghum to thrive where most other food crops simply withered. Eleven sorghum genotypes were evaluated on the dry land of East Flores in East Nusa Tenggara with treatment in the different applications of organic liquid fertilizer. Results showed that genotypes values were significantly different in all traits observed, and the interaction factors between fertilizer and genotypes had a significant effect on all traits except panicle length and width. The application of liquid organic fertilizer, however, did not significantly affect traits in both plant and stem biomass. Super 2 genotype showed the highest stem biomass value and differed significantly compared to other genotypes, even though fertilized treatment obtained less yield (29.87 t.ha −1 ) compared to without fertilizer (44.11 t.ha −1 ). Pearson correlation between all observed traits showed that stem biomass was significantly highly correlated to various traits, such as number of internodes (r = 0.77), plant height (r = 0.74), stem diameter (r = 0.72), and plant biomass weight (r = 0.97).