Response of soybean genotypes to salinity in germination stage

Abstract

Abstract. Kuntyastuti H, Sutrisno. 2017. Effect of manure, Phosphate Solubilizing Bacteria, and chemical fertilizer application on the growth and yield of soybean. Nusantara . This study aimed to determine the dosages of organic, chemical and biological fertilizers for optimum growth and yield of soybean grown in acidic dryland. Treatments applied were twelve combinations of inorganic fertilizer, phosphate solubilizing bacteria (PSB), and manure. These treatments were arranged in a randomized block design, each was three replicates. The growth variables of plant height and chlorophyll index were observed in every two weeks interval, started at two weeks after planting. Root length and number of nodules were observed at 45 days after planting when the maximum vegetative growth occurred. Stem and root dry weight, number of filled and empty pods, pod dry weight, grain weight, and number of seeds per plant were observed at harvest. Optimum soybean growth and yield were achieved when soybean plants were treated with a combination of 1500 kg ha -1 of manure + PSB +150 kg ha -1 of NPK chemical fertilizer.Keywords: Chemical fertilizer, dry acid soil, manure, phosphate solubilizing bacteria, soybeanAbbreviations: NPK = nitrogen, phosphate, potassium, PSB = Phosphate solubilizing bacteria, DAP = day after planting, WAP = week after planting, LCI = leaf chlorophyll index, CEC = cation exchange capacity

Determination of Seed Size Properties of Soybean Cultivars and Their Response under Salinity during Early Growth

“…The early germination of large seeds could elevate competing capacity with the surrounding weeds and efficient uptake of the resources. The detrimental impacts of high levels of NaCl are in line with earlier observations in soybean by Putri et al (2017) and Yin et al (2022).…”

Germination and vigor of soybean genotypes seeds under saline stress

“…Several authors have confirmed that the germination potential of soybean seeds reduces in response to salinity, and variations have been seen between genotype responses. Similar to the study conducted by Putri et al (2017) on 16 soybean genotypes (Detam 2, Detam 3, Detam 4, Pangrango, Ijen, Mahameru, Baluran, Petek, G100H, Kaba, Ichiyou, IAC100, Argopuro, Gumitir, Seulawah, and Merbabu), and that of Begum et al (2022) with four genotypes (PI408105A (PI5A), PI567731 (PI31), PI567690 (PI90), and PI416937 (PI37)) under saline stress ranging from 0 mM NaCl to 150 mM NaCl. The reduction in germination in response to osmotic stress occurs because of a deficit in water and the effects of an accumulation of toxic ions that interfere with the absorption of nutrients and cause cytotoxicity and reductions in cell division and embryo development (Taiz et al, 2017;Silva et al, 2019).…”

Comparing the Salt Tolerance of Different Spring Soybean Varieties at the Germination Stage

“…China is one of the largest soybean consumers in the world, and its import volume increases every year; therefore, it has an urgent need to increase its domestic soybean production [4]. Salinity is one of the main forms of abiotic stress and one of the most common agricultural problems in arid and semi-arid regions [5,6]. Salinity monitoring agencies such as the United States Salinity Laboratory (USSL) found that approximately 1 billion hectares of land out of the 13 billion hectares in the world are affected by salt, according to data from the Food and Agriculture Organization (FAO) of the United Nations [7].…”