~ 2629 ~ International Journal of Chemical Studies 2020; 8(1): 2629-2631 P-ISSN: 2349–8528 E-ISSN: 2321–4902 www.chemijournal.com IJCS 2020; 8(1): 2629-2631 © 2020 IJCS Received: 16-11-2019 Accepted: 18-12-2019 Chavali Siri Department of Crop Physiology, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, India RP Patil Department of Crop Physiology, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, India A Amaregouda Department of Crop Physiology, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, India TC Suma Department of Crop Physiology, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, India Mallikarjun Kenganal Department of Plant Pathology, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, India Corresponding Author: Chavali Siri Department of Crop Physiology, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, India Influence of different agrochemicals on yield atributes & yield of chilli ( Capsicum annuum L.) grown under HK region of Karnataka Chavali Siri, RP Patil, A Amaregouda TC Suma and Mallikarjun Kenganal DOI: https://doi.org/10.22271/chemi.2020.v8.i1an.8668 Abstract A field experiment was conducted at Agriculture college farm Raichur, University of Agricultural Sciences, Raichur, Karnataka to study the influence of different agrochemicals on morphological parameters and yield and yield components of chilli variety. The experiment was laid out in randomized complete block design with 3 replications during kharif season 2018. The experiment consisting of 9 different agrochemicals treatment along with a control i.e., T1: Gibberellic Acid (GA3) @10 ppm, T2: Naphthalene acetic acid (NAA) @10 ppm, T3: Methyl Jasmonates (Me JA) @ 0.5mM, T4: T2 + T3, T5: Cycocel @ 1000 ppm, T6: Nitrobenzene @ 10 ppm), T7: Brassinosteroides @ 0.15%, T8: T5+ T7, T9: Control. Among the treatments, NAA @ 10ppm recorded significantly higher number of fruits (146.33) over all other treatments followed by GA3 and Brassinosteroids (137.67 and 135.33). However, the treatments CCC, Nitrobenzene and combination of CCC and brassinosteriods (128.33, 106.00 and 106.67) did not differ significantly among themselves. Lowest yields (50.67) were recorded in control. However, the treatments GA3 and brassinosteriods and CCC were on par with each other. The treatment NAA @ 10ppm recorded significantly higher number of fruits (9.42 cm) followed by GA3 (9.13 cm) and Brassinosteriods (8.46 cm). However, the treatments CCC (8.41 cm), Nitrobenzene (8.18 cm) and combination of CCC and brassinosteriods (8.17 cm) did not differ significantly among themselves. The treatment NAA @ 10ppm recorded significantly higher yield (904 kg ha -1 ) over all other treatments followed by GA3 and Brassinosteriods 855 and 847 kg ha -1 , respectively. However, the lowest yield (496.67 kg ha -1 ) was recorded in control. Keywords: Agrochemicals, foliar application, yield Introduction The chilli (Capsicum annuum L.) is an important vegetable cum spice crop grown in almost all parts of tropical and subtropical regions of the world. It was first introduced in India by Portuguese towards the end of 15 th century. It belongs to the family solanaceae and originated from South and Central America where it was domesticated around 7000 BC. The genus capsicum includes 30 species, five of which are cultivated viz., Capsicum annuum L., C. frutescens L., C. Chinense jacq, C. pubescens and C. baccatum L. (Bosland and Votava, 2000, Wang and Bosland, 2006 and Ince et al., 2010) [4, 17] . Capsicum annum is cultivated either for pungent fruited genotypes called chilli (synonyms: hot pepper, American pepper, azi, cayenne, paprika etc.) or non-pungent fruited genotypes called sweet pepper (synonyms: Capsicum, paprika, bell pepper, Shimla mirchi). Being a crop of tropical and sub-tropical regions, it requires warm humid climate. It is grown throughout the year all over the contry in india. Chilli has many culinary advantages. It comprises numerous chemicals including steam- volatile oils, fatty oils, capsaicinoids, carotenoids, vitamins, proteins, fibres and mineral elements (Bosland and Votava, 2000) [4] . Capsicum fruits may serve as a source of natural bactericidal agents to be used in food and medicinal systems. Besides conventional nutritional food uses, a number of versatile food (paprika oleoresin) and non-food (defense, spiritual, ethno botanical) uses of chillies are known Meghavansi et al., 2010). In India chilli occupies an area of 3.09 lakh hectares with an annual production of 35.92 lakh tonnes. In India, major chilli producing states are Andhra Pradesh, Telangana, Tamil Nadu, Karnataka and Madhya Pradesh (Agriwatch, 2017) [1] Karnataka stands third in area (1.02 lakh