Author(s):

Yatendra Kumar and Vishwanath

Abstract: The present investigation was carried out to study the effect of integrated nutrients management with PGR on growth and yield of African marigold (Tagetes erecta L.) cv. Pusa Narangi Gainda at the Horticulture Research Farm, Department of Horticulture, Kulbhaskar Ashram P.G. College, Prayagraj, U.P. during the year 2016-2017 and 2017-18 and pooled data of both the year of experiments are taken. The experiment was laid out in a randomized block design with three replications comprising 36 treatment combinations with control. The treatments comprised of Azotobacter, PSB and Vermicompost with Cycocel (2- Chloroethyle Triemethyle Ammonium Chloride). The results revealed that application of the treatment T₂₂ (Azotobacter- 500 ml/ha, PSB- 500 ml/ha and Vermicompost- 2.50 t/ha) recorded maximum growth characters, duration of flowering (67.50 days), diameter of maim stem (2.46 cm), number of compound leaves per plant (208.70) and yield parameters viz., number of flowers per plant, fresh weight of flower, fresh weight of flower per plant, fresh weight of flower per plot and flower yield per ha (73.10, 8.42 g, 615.97 g, 9.86 kg and 456.27 q/ha). Whereas application of T₃₂ (Azotobacter- 750 ml/ha, PSB- 500 ml/ha and Vermicompost- 5.00 t/ha) produced significantly maximum plant height and primary branches per plant at 90 and 120 DAT (75.23 cm, 17.90 and 20.30 per plant respectively), maximum primary branches per plant at 60 DAT (12.20) and length of compound leaves (8.92 cm) were recorded under T₃₅ (Azotobacter- 750 ml/ha, PSB- 1000 ml/ha and Vermicompost- 5.00 t/ha), while the fresh weight of plant (360.30 g) was observed under T₂₅ (Azotobacter- 500 ml/ha, PSB- 1000 ml/ha and Vermicompost- 2.50 t/ha).

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