Status and distribution of root knot nematode (Meloidogyne spp.) and other major plant parasitic nematodes associated with kiwi (Actinidia deliciosa chev.) in Kumaon region of Uttarakhand
| dc.contributor.advisor | Satya Kumar | |
| dc.contributor.author | Veratiya, Arun Kumar | |
| dc.date.accessioned | 2021-10-09T05:16:18Z | |
| dc.date.available | 2021-10-09T05:16:18Z | |
| dc.date.issued | 2021-09 | |
| dc.description.abstract | Kiwi is the most important horticulture crop of Uttarakhand. It plays a significant role in the economy of Uttarakhand. Plant parasitic nematodes are one of the limiting factors in kiwi production which results in quality deterioration and yield loss. Keeping this view, an extensive survey was conducted in four districts of Kumaon region of Uttarakhand to study the status of important plant parasitic nematodes associated with kiwi. Soil samples were collected from different locations of the districts and analysis was done in Nematology Laboratory of Department of Plant Pathology, Govind Ballabh Pant University of Agriculture & Technology, Pantnagar. Analysis revealed the presence of eight genera of plant parasitic nematodes associated with kiwi viz., Meloidogyne spp., Helicotylenchus spp., Aphelenchus spp., Criconemoides spp., Pratylenchus spp., Tylenchus spp., Ditylenchus spp. and Tylenchorhynchus spp. Among these Meloidogyne spp. was predominant in all the four districts surveyed viz, Almora, Champawat, Nainital and Pithoragarh. From Almora district, Majkhali showed highest population of plant parasitic nematodes and was affected maximum with RKN both in terms of soil (200cc) and roots (per gram) with total population (1820). From Champawat district, Suie showed maximum population of plant parasitic nematodes and was affected maximum with RKN both in terms of soil and roots with total population (2603). In Nainital district, Satbunga showed maximum population of plant parasitic nematodes whereas Kashiyalekh was affected maximum with RKN both in terms of soil and roots with total population (2020). In Pithoragarh district, Aincholi showed maximum population of plant parasitic nematodes and affected maximum with RKN both in terms of soil and roots with total population (2747). Aincholi in Pithoragarh district was maximum affected by RKN among all the locations surveyed. Presence of two Meloidogyne spp. were found i.e., Meloidogyne incognita and Meloidogyne hapla.In present study, soil pH showed positive correlation with the population of Tylenchorhynchus spp. However, soil pH was found to be negatively correlated with the population buildup of Pratylenchus spp., Meloidogyne spp., Helicotylenchus spp. And Ditylenchus spp. Soil moisture showed its positive correlation with Helicotylenchus spp., Aphelenchus spp., Criconemoides spp., Pratylenchus spp., Tylenchorhynchus spp. And Ditylenchus spp. While population buildup of Meloidogyne spp., Aphelenchus spp., Tylenchorhynchus spp., Pratylenchus spp. and Ditylenchus spp. were found to be negatively correlated with soil temperature. On the basis of survey, it can be inferred that occurrence of root knot nematode is a serious threat to kiwi growing areas in Uttarakhand. Instant attention of the researchers and kiwi growing community is required to take appropriate decision to limit their further spread. Kiwi farmers need to be aware about the threat so that timely preventive management strategies could be taken so as to increase the quality and yield of kiwi crop. | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810176840 | |
| dc.keywords | nematoda, Meloidogyne, plant parasites, kiwies, Actinidia delicios, Uttarakhand | en_US |
| dc.language.iso | English | en_US |
| dc.pages | 85 | en_US |
| dc.publisher | G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand) | en_US |
| dc.research.problem | kiwies | en_US |
| dc.sub | Plant Pathology | en_US |
| dc.theme | Nematoda | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | Status and distribution of root knot nematode (Meloidogyne spp.) and other major plant parasitic nematodes associated with kiwi (Actinidia deliciosa chev.) in Kumaon region of Uttarakhand | en_US |
| dc.type | Thesis | en_US |