Trichoderma-BASED BIO-STIMULANT APPLIED ON OKRA (Abelmoschus esculentus L.) BIOPRODUCT APPLIED ON OKRA

Abstract

Okra is a popular lucrative crop in African countries but it hasn’t yet been scientifically experimented

with Algerian open fields. This work aims to examine the potential of a Trichoderma-based bio- stimulant on the performance of this crop. The experiment was conducted, in the region of Touggourt,

according to a randomized complete block design with three rehearsals. Three plots were treated with the bioproduct (20g/2.5 m2

) and three others were untreated (controls). The assessment was conducted by measuring 13 agro-morphological plant characters associated with growth and yield. The study revealed that the biological product has a stimulating efficiency towards the mostly examined parameters especially the yield, which was doubled compared with the untreated crop. Statistical analysis revealed a significant stimulant effect on quantitative variables of growth (Wilk’s Ʌ= 0.440, F (7, 52) 9.45, p= < 0.05) and yield (Wilk’s Ʌ= 0.72, F (3, 38) 4.89, p= 0.006). Moreover, three stages of development (lifting, flowering, and fruiting) were improved after treatment application. Pearson’s Chi2 test showed that qualitative parameters were strongly associated with the bio-stimulant effect, χ2 = 97, df= 4, p= < 0.05.This treatment incorporated upstream of the culture was very efficient in promoting okra attitude and it can turn local ideology to use organic products in agriculture.