INTERACTIVE EFFECTS OF BIO-FERTILIZERS AND PLANT GLYCINE MAX L POPULATION ON TWO SOYBEAN (.) CULTIVARS PERFORMANCE IN SOUTH-EASTERN SUDAN

Abstract

In order to estimate effect of bio-fertilizers x genotype × plant population interaction on soy bean
performance, an experiment was conducted for two successive summer seasons (2018 and 2019)
at Demonstration Farm of Damazin Agricultural Research Station in Damazin, Blue Nile State,
South-eastern Sudan.Two cultivars of soybean namely,Sudan-1(V1) and Sudan-2(V1) inoculated
with [Rhizobacteria (B1), Azotobacter (B2) and Bacillus(B3), and without bacteria as control(B0),
respectively] under three plant population (D1≡ 210000, D2≡110000 and D3≡70000 plants/ha).
The experiment was laid out in (RCBD) with three replications as split-split-plots trail. The traits
of dry matter, leaf area, number of nodules, branches, pods per plant, seeds in pod, 100- seedweight, seeds and straw yield were studied. The results revealed that, the interaction between of
plant population and bio-fertilizer with genotypes showed significant effects on the most of these
traits. The highest leaf area (8.97,9.98), seeds yield (967.22 and 986.22 kg/ha), HI (36.17 and
36.67) recorded when sowing seeds of V1 at higher density D1inoculated with B1 (V1×D1×B1)in
both seasons. Also, the heavier dry weights (0.95 and 0.92 kg), higher 100-seed weight (15.49 g),
seeds/pod (7.48) were observed in V1×D3×B1 treatment. The superiority of the above two
interaction treatments, it was noted that the Sudan-1 genotype and bio-fertilizer (B1) ranked first
in all traits of the seed yield and its components.