Toleransi Genotipe Kedelai terhadap Salinitas

Pratanti Haksiwi Putri, Gatut Wahyu Anggoro Susanto, Abdullah Taufiq


Soybean (Glycine max (L.) Merr.) is generally sensitive to soil salinity. Soybean cultivars tolerant to salinity, if available, is importance to produce the crop on saline soil. The objective of the research was to evaluate the degree of tolerance of soybean genotypes to salinity. The research was conducted on saline soil in Lamongan District, during the dry season of 2016 (May-August). Nineteen soybean genotypes that had been selected for salinity tolerance in the previous greenhouse experiment were evaluated in the field, usin g a randomized blo ck de sign wit h t hree replications. Cultivar Wilis was used as a sensitive check to salinity. Observations were done on soil properties before planting, number of plants survive at 13 and 41 days after sowing (DAS), plant height at 41, 56 and 71 DAS, chlorophyll content index at 27, 41 and 56 DAS, soil EC at 71 DAS, number of harvested plants, grain yield and yield components. Results showed that among 19 genotypes tested, five genotypes survived on high level of salinity soil until harvest of around 30 to 50% of the original plant population. Salinity reduced plant population by more than 50% and reduced 50% plant height from its normal growth. Based on soil EC, plant populations at harvest, and grain yield, genotype Karat 13, Grayak 3, and Grayak 5 were considered as tolerant to high salinity soil (EC 11,7-14,4 dS/m), while MLGG 0160 was only tolerant to moderate salinity soil (EC up to 9,1 dS/m). Grain yield of tolerance varieties, however, were low and unfeasible for the economic soybean production on the saline soil.


Glycine max (L.) Merril; salinity; tolerant

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P-ISSN: 2541-5166
E-ISSN: 2541-5174
Terakreditasi No.646/AU3/P2MI-LIPI/2015 oleh Lembaga Ilmu Pengetahuan Indonesia

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