Effects of biostimulants on growth, yield, and quality of chili intercropped with palmyrah

M Nandhini; MI Manivannan; V Premalakshmi; M Theradimani; S Srinivasan; KG Sabarinathan; NR  Kennady

doi:10.14719/pst.5550

Authors

M Nandhini Department of Horticulture, V O Chidambaranar Agricultural College & Research Institute, Killikulam 628 001, Tamil Nadu, India https://orcid.org/0000-0003-0444-6176
MI Manivannan Department of Horticulture, V O Chidambaranar Agricultural College & Research Institute, Killikulam 628 001, Tamil Nadu, India https://orcid.org/0009-0003-6715-8654
V Premalakshmi Department of Horticulture, V O Chidambaranar Agricultural College & Research Institute, Killikulam 628 001, Tamil Nadu, India https://orcid.org/0000-0002-0741-1465
M Theradimani V O Chidambaranar Agricultural College & Research Institute, Killikulam 628 001, Tamil Nadu, India https://orcid.org/0000-0003-2484-6425
S Srinivasan Department of Crop Physiology, V O ChidambaranarAgricultural College & Research Institute, Killikulam 628 001, Tamil Nadu, India https://orcid.org/0000-0003-3899-1201
KG Sabarinathan Department of Agricultural Microbiology, Agricultural College & Research Institute, Madurai 625 104, Tamil Nadu, India https://orcid.org/0000-0002-8659-6479
NR Kennady Department of Horticulture, V O Chidambaranar Agricultural College & Research Institute, Killikulam 628 001, Tamil Nadu, India https://orcid.org/0000-0002-5633-0688

DOI:

https://doi.org/10.14719/pst.5550

Keywords:

chili, intercrop, palmyrah, panchakavya, potassium chloride, PPFM

Abstract

A field experiment was conducted to investigate the impact of bio-stimulants on the growth and yield of chili (var. KKM Ch-1) as an intercrop under palmyrah plantation at the College Orchard of the Department of Horticulture, VOC Agricultural College and Research Institute, Killikulam, Thoothukudi district of Tamil Nadu during 2023-24. Four treatments, including potassium Chloride (KCl) 1%, Pink-Pigmented Facultative Methylotrophs 1%, Panchakavya 3 %, and water as a control, were applied in a randomized block design with five replications. Observations were recorded on plant height (cm), number of branches at 30, 60 and 90 days after transplanting, along with yield attributing characters viz., days to 1% flowering, 50% flowering, no. of red ripened fruits per plant, individual fruit weight (g), yield per plant (g), yield per ha (tons), dry yield per plant (g), dry yield per hectare (ton), ascorbic acid content (mg per 100g), capsaicin (%), capsanthin (%) and oleoresin (%). The maximum plant height at 30 (25.48 cm), 60 (56.79 cm), and 90 days after transplanting (70.75 cm), number of branches at 30 days after transplanting (2.80), 60 days after transplanting (8.80) and 90 days after transplanting (11.40), early flowering (38.40 days), 50% flowering (46.40 days), individual fruit weight (2.18 g), number of fruits per plant (78.20), yield of red ripen fruits per plant (170.31 g), yield per ha (6.30 ton per ha), leaf area index (0.84), chlorophyll a (1.42 mg per g), chlorophyll b (1.77 mg per g), total chlorophyll (3.28 mg per g), proline content (251.85 mg per g), dry yield per plant (65.67 g), dry yield per hectare (2.43 ton per ha), ascorbic acid content (12.27 mg per 100g), capsaicin (0.53%), capsanthin (44.04) and oleoresin (14.51%) was recorded in (the 3%) Panchagavya spray treatment. The salient findings revealed that among the different treatments, 3 % Panchagavya spray exhibited superiority in promoting growth and yield in Chilli as an intercrop under palmyrah in dryland conditions of the Thothukudi district.

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