A pot culture experiment on soybean cv.Williams-82 was conducted in clay loam soil with one level (T2) of N+P2O5+K2O fertilizer @ 23+60+30 kg ha-1 and five different level (T3 to T7) of N fertilizers @ 25, 50, 75, 100 and 125 kg ha-1 plus the same constant dose of P and K fertilizer, respectively. Whereas T1 with zero level of added NPK was kept control. Whereas a constant dose of FYM was also mixed with soil (1:3). These fertilizer treatments were applied to both non-inoculated (non-inoc) and inoculated (inoc) pot culture crops. Results showed that fertilizer treatments in general significantly (P<0.05) but adversely influenced the moisture and copper content of soybean seeds when compared with treatment not receiving fertilizer (T1). While reverse was true in case of iron contents. Result also showed that by comparing the inoc with non-inoc treatments of fertilizer, inoculation in general significantly increased the moisture, iron and copper content of seeds. Statistically a maximum amount of moisture (38.14 g kg-1), iron (4.61 ppm) and copper content (2.25 ppm) is recorded in T3 and T5 inoculated dose of fertilizer, respectively. The correlation coefficient (r) studies depicted that iron content exhibited highly significant positive correlation with grain yield (0.580) and oil contents (0.566), while moisture content showed significant but negative association with grain yield (-0.474). However, copper content did not establish any significant correlation with grain yield (0.366). Therefore, it can be safely concluded that iron could be used a suitable selection criteria for improving the quality (in term of oil and soluble sugars) and quantity of grain yield in soybean cv. Williams-82.
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Abdul Kabir Khan Achakzai, 2004. Uptake of Moisture, Iron and Copper Content by Pot Culture Mature Soybean Seeds. Journal of Biological Sciences, 4: 50-54.
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