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Table 3 Effect of bio-control agents, aqueous plant extracts, and citric acid as soil treatment and/or foliar spray on yield parameters of potato plants in field application

From: Field application of bio-control agents and aqueous plant extracts for controlling bacterial soft rot and enhancement yield quality of Solanum tuberosum L. cv. Diamond

TreatmentsSoil treatmentFoliar spray
Tuber weight/pitTuber no./pittotal yield /pitTuber weight/pitTuber no./pitTotal yield /pit
gIncr.%No.Incr.%gIncr.%gIncr.%No.Incr.%gIncr.%
Bacillus subtilis83.7bc*17.27.0ab17.2590.5a93.2146.3a104.05.3bcd26.2753.1ab154.9
Bacillus pumilus101.1ab40.45.2c40.4549.3a79.7138.7ab93.45.2bcd23.8709.1bc140.0
Trichoderma harzianum119.5a65.15.0c65.1581.2a90.1122.9b71.45.7abc35.7669.9bc126.8
Trichoderma virens118.0a63.95.0c63.9557.2a82.3130.5ab82.06.5a54.8822.9a178.6
Lantana83.6bc16.77.2a16.7575.3a88.284.7 cd18.15.3bcd26.2445.4de50.8
Lemongrass91.4bc26.95.5bc26.9506.1ab65.679.7d11.26.7a59.5529.4d79.2
Olive cake79.2bc10.05.5bc10.0438.4abc43.4101.5c41.66.3ab50.0641.9c117.3
Citric acidNT100.3c39.96.7a59.5667.6bc125.1
PDB medium only74.6c2.64.5c2.6335.8bc9.874.8d4.34.6 cd9.5344.3ef16.6
NB medium only80.8bc8.84.5c8.8363.5bc18.975.od4.64.7a11.9352.6ef19.4
Control72.0c-4.3c-305.7c-71.7d-4.2d 295.4f-
  1. NT not test
  2. *Means in each column followed by different letter(s) are significantly different according to Duncan’s multiple range test at P ≤ 0.05