Population fluctuations and reaction of chickpea genotypes to root lesion nematodes (Pratylenchus thornei and P. neglectus) in Turkey
The root lesion nematodes (RLN) Pratylenchus thornei and P. neglectus are significant pests that parasitize the roots of chickpea plants and cause direct damage and indirect damage causing yield reduction. They have been widely distributed and attack many crops, especially chickpea, causing signific...
Saved in:
Published in | Indian phytopathology Vol. 75; no. 2; pp. 437 - 447 |
---|---|
Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
New Delhi
Springer India
01.06.2022
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The root lesion nematodes (RLN)
Pratylenchus thornei
and
P. neglectus
are significant pests that parasitize the roots of chickpea plants and cause direct damage and indirect damage causing yield reduction. They have been widely distributed and attack many crops, especially chickpea, causing significant damage in Turkey. Therefore controlling nematode numbers is important not only for the in-season crop but for the wider rotation as well. There is little diversity for nematode resistance in domesticated chickpea. New collections have identified very high genetic diversity in
Cicer reticulatum
and
C. echinospermum
compared to domestic chickpea. The study was set up in a range of Turkish chickpea environments to evaluate the population dynamics of the root-lesion nematodes (
P. thornei
and
P. neglectus
) in wild and domesticated
Cicer
spp. to understand this new diversity harbors useful resistance. The field study was conducted in contrasting cold, long-season and hot, short-season environments (Ankara and Şanliurfa) in 2015/2016 and 2016/2017. The results on population dynamics indicated that the RLNs attack started in February–March on the chickpea cultivars and population increased gradually with the growth of the plant. The maximum numbers of nematodes were extracted from roots and soil during June to mid-summer (July) and the population densities were at the lowest during cold months winter (February–March).
Cicer echinospermum
genotypes were more resistant to
P. thornei
than any
C. reticulatum
and
C. arietinum
genotypes. The low population density was observed on lines 232, 323, 412, 82
to P. thornei
and 12, 32, 118, 202, and 232 to
P. neglectus
. |
---|---|
ISSN: | 0367-973X 2248-9800 |
DOI: | 10.1007/s42360-022-00468-x |