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Abstract


EMERGENT LIFE SCIENCES RESEARCH - Volume 3, Issue 2, December 2017

Pages: 26-31

Incidence of chilli mite, Polyphagotarsonemus latus (Banks) on chilli fruit parameters under field conditions

Author: Monika Jangra, Rachna Gulati, Sonika

Category: Research Article

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Abstract:

Fourteen chilli hybrids were raised to study the effect of phytophagous chilli mite, Polyphagotarsonemus latus (Banks) on fruit parameters of chilli at Research Farm Area, Department of Vegetable Sciences, CCS Haryana Agricultural University, Hisar (Haryana). Chilli mites are one of the major pests of vegetable, ornamental and fruit crops, causing considerable loss in yield. Correlation coefficient (r = -0.98) calculated between mite incidence and fruit length suggested an increase in mite population led to corresponding significant decrease in fruit length in fourteen chilli hybrids. Maximum average fruit length (6.50 cm) was recorded in hybrid 9/CHIhyb-10 with corresponding lowest mite count (2.53mites/leaf). In contrast, decreased fruit length was recorded in hybrids 10/CHIhyb-7 (2.50 cm) and 10/CHIhyb-6 (2.83 cm) with highest mite count of 6.28 and 5.70 mites/ leaf, respectively. Likewise, negative and highly significant correlation was recorded between mite incidence and fruit number (r = -0.98) and fruit yield/plant (r = -0.96).

Keywords: chilli hybrids, fruit parameters, Polyphagotarsonemus latus

DOI: http://dx.doi.org/10.7324/ELSR.2017.322631