Author: G. R. Guru PrasadPublisher:
ISBN:
Category :
Languages : en
Pages : 99
Book Description
Bio-management of Root Knot Nematode (Meloidogyne Incognita) Infecting Carrot (Daucus Carota)
Author: G. R. Guru PrasadQTL for Meloidogyne Incognita Root Knot Nematode Resistance and Other Traits of Interest in Carrot (Daucus Carota)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Root-knot nematodes (RKN, Meloidogyne spp.) are major pests attacking carrots (Daucus carota) worldwide, causing galling and forking of the storage roots, rendering them unacceptable for market. Genetic resistance could significantly reduce the need for broad-spectrum soil fumigants in carrot production. In this study genetic resistance to M. incognita was mapped. Three diverse sources of resistance, from Syria (HM), Europe (SFF) and South America (Br1091) were identified. Two F2 mapping populations were developed using these parents, (Br1091xHM1) and (SFFxHM2), as well as a segregating population derived from the self-pollination of a HM plant (HM3). Analysis revealed four QTLs conditioning resistance in Br1091xHM1, three in SFFxHM2, and three in HM3. A consensus genetic map of the three populations revealed five non-overlapping QTLs for M. incognita resistance, one each on carrot chromosomes 1, 2, 4, 8, and 9. One QTL was present in all 3 populations, in the same region of chromosome 8 as Mj-1 which imparts resistance to M. javanica. Along with M. incognita RKN resistance, the Br1091xHM1 and SFFxHM2 populations were segregating for several other traits of interest. Carrot root and shoulder color have important implications for nutritional value and marketable yield. Segregation patterns for orange versus yellow exterior root color revealed one QTL in both populations, on chromosome 3, along with two additional QTL detected in the SFFxHM2 population. Segregation for purple shoulder color revealed one QTL also on chromosome 3 in both populations with two additional QTL identified in SFFxHM2. An additional QTL for green shoulder color in Br1091xHM1 co-localized with the purple shoulder color QTL. Annual flowering and vernalization are important traits that have implications for root quality since, as flowering progresses, the root quickly lignifies. Evaluating early flowering in the field, early flowering in the greenhouse, and annual growth habit allowed mapping additional QTL in the Br1091xHM1 population that behave in a manner similar to days to flowering QTL identified in other crops. These additional studies lay the foundation for future research to validate and refine the QTL.
A Study of Tolerance in Carrots (Daucus Carota L.) to Northern Root-knot Nematode (Meloidogyne Hapla Chitwood)
Author: Lawrence William YargerPublisher:
ISBN:
Category : Carrots
Languages : en
Pages : 106
Book Description
Biology and Management of Root Knot Nematode (Meloidagyne Incognita (Kofoid and White) Chitwood) Infecting Carnation (Dianthus Caryophyllus L.)
Author: T. R. KavithaBio-management of Root-knot Nematode, [Meloidogyne Incognita (Kofoid and White, 1919) Chitwood, 1949] on Sunflower (Helianthus Annuus L.)
![Bio-management of Root-knot Nematode, [Meloidogyne Incognita (Kofoid and White, 1919) Chitwood, 1949] on Sunflower (Helianthus Annuus L.) PDF](https://books.google.com/books/content/images/frontcover/Tq3fmAEACAAJ?fife=w80-h100)
Author: Syeda Samina AnjumManagement of Root-Knot Nematode Using Entomopathogenic Nematodes
Author: Ajay Kumar MaruPublisher: LAP Lambert Academic Publishing
ISBN: 9783847346760
Category :
Languages : de
Pages : 104
Book Description
Management of Root-knot Nematode Using Entomopathogenic Nematodes: Biological control of insect pests using entomopathogenic nematodes (EPN s) has gained popularity world over in recent past as they have long term effect against target pests without any adverse effect on non-target organisms. These are potential bioagents, highly virulent, have broader host range and can bring out quick kill of the target pests. Preliminary studies have shown that EPN s are equally pathogenic to plant parasitic nematodes also. The results obtained from series of experiments conducted to find out the effect of EPN s on root knot nematode (Meloidogyne incognita) showed that these are effective in suppressing root knot population infecting tomato significantly.
Ontogeny of Daucus Carota in Relation to Meloidogyne Hapla with a Preliminary Endomycorrhizal Study
Author: Lucille Ann SlingerPublisher:
ISBN:
Category : Carrots
Languages : en
Pages : 332
Book Description
Studies on the Biology and Management of Root-knot Nematode, Meloidogyne Incognita on Coriander and Fenugreek [With CD Copy]
![Studies on the Biology and Management of Root-knot Nematode, Meloidogyne Incognita on Coriander and Fenugreek [With CD Copy] PDF](https://books.google.com/books/content/images/frontcover/UGnNzgEACAAJ?fife=w80-h100)
Author: Promila JangraNovel Biological and Biotechnological Applications in Plant Nematode Management
Author: Mujeebur Rahman KhanPublisher: Springer Nature
ISBN: 9819928931
Category : Science
Languages : en
Pages : 543
Book Description
The volume focuses on novel and effective biological and biotechnological methods for managing major plant parasitic nematodes in economically important agricultural crops. Nematodes develop a wide variety of interactions with soil microbes and host plants, and cause enormous losses in crop yields equivalent to around USD 173 billion annually. In view of growing concern for pesticide contamination in crops, coupled with ban on several efficacious pesticides, and increasing demand for organic foods, the biological and biotechnological approaches offer a good alternative to chemicals for managing nematode infestations in agricultural crops. The book embodies twenty-two chapters which are arranged in two groups. The first group covers different novel methods of nematode management such as biotechnological, biopesticides, microbial consortia, host resistance, omics technology, transgenics, nano-nematicides, nano-diagnosis, etc. The second groups of chapters describe important nematode problems in major crops such as cereals, vegetables, pulses, spices, wood yielding conifers, etc. Overall, the book collates the latest information on above topics and offers practical solutions to the limitations and challenges in the existing management technologies. This book is of interest and serves up-to-date and elaborated information to agriculture researchers, teachers, scientists, under-graduates, post-graduates, plant nematologists, plant pathologists, plant protectionists, agronomists, horticulturalists, helminthologists, extension workers, and NGOs.
Author: RANGASWAMY S. D