Meloidogyne incognita INFECTING BRINJAL IN KHYBER PAKHTUNKHWA, PAKISTAN: ITS DISTRIBUTION, REPRODUCTION AND MANAGEMENT THROUGH RESISTANCE

Main Article Content

TAUHEED ALI
ISHRAT NAZ
MUSTANSAR MUBEEN
QAISER SHAKEEL
BEENISH GUL
HAFIZ MUHAMMAD USMAN
RIDA FATIMA
MUHAMMAD NAUMAN ATIQ
MUHAMMAD ATEEQ
AQLEEM ABBAS
SONUM BASHIR
MUHAMMAD AAMIR SOHAIL

Abstract

The Khyber Pakhtunkhwa (KPK) was investigated for incidence and severity of Meloidogyne incognita infecting Solanum melongena (eggplant/Brinjal). Further, the eggplant varietal resistance to root-knot nematode (RKN) was studied. The extensive survey revealed that the most prevalent species of KPK was M. incognita followed by M. javanica, with disease incidence ranging from 24-72%. The Peshawar fields proved to be the hotspot for RKN reproduction and development with 72% disease incidence. In a screening trial, the reaction of 16 brinjal genotypes to RKN was evaluated in pot conditions by applying standard inoculum @ 5000 eggs of nematodes per seedling. Statistically, a significant difference was noted among the studied eggplant varieties for RKN reproduction i.e., eggmass index, galling index, and juvenile populations. The results revealed that the reaction of two varieties (10 #1 (14) and 10/A-1 (14) was resistant, while the response of the remaining 14 varieties was ranged from moderately resistant to highly susceptible. In-vitro study on three different brinjal root diffusates (D1, D2 and D3) obtained from a resistant brinjal line (10/A-1 (14) at three different time intervals viz., 6, 12 and 24 hrs were evaluated against percent eggs hatching and J2s mortality of M. incognita at three different incubation periods viz., 24, 48 and 72 hrs. Egg inhibition (96.5%) and J2s mortality (90.5%) were maximum for diffusate D3 at 72 hrs of exposure. The inhibition of eggs and mortality of juveniles increased with an increase in the exposure time. The current study suggests that eggplant resistant germplasms can suppress RKN and could be used in the breeding program for developing nematode's resistant cultivars.

Keywords:
Brinjal, Meloidogyne incognita, distribution, resistance, RKN

Article Details

How to Cite
ALI, T., NAZ, I., MUBEEN, M., SHAKEEL, Q., GUL, B., USMAN, H. M., FATIMA, R., ATIQ, M. N., ATEEQ, M., ABBAS, A., BASHIR, S., & SOHAIL, M. A. (2021). Meloidogyne incognita INFECTING BRINJAL IN KHYBER PAKHTUNKHWA, PAKISTAN: ITS DISTRIBUTION, REPRODUCTION AND MANAGEMENT THROUGH RESISTANCE. PLANT CELL BIOTECHNOLOGY AND MOLECULAR BIOLOGY, 22(27-28), 126-138. Retrieved from https://ikpresse.com/index.php/PCBMB/article/view/6191
Section
Original Research Article

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