CHICKPEA ADVANCED LINES SCREENING FOR SOURCES OF RESISTANCE AGAINST TWO MAJOR DISEASES OF CHICKPEA “WILT AND BLIGHT”

Fusarium wilt caused by Fusarium oxysporum, Schlecht. emend. Snyd. & Hans. f. sp. ciceri is prevalent in most chickpea-growing countries and is a major devastating disease. Host plant resistance is the most practical method of disease management. Indigenous chickpea germplasm reveals a heterogeneous genetic make-up and the response of resistance to wilt is an unexplored potential source for disease resistance. There are 70 indigenous germplasm lines selected on the basis of their agronomic performance and diverse areas of collections in the country. Of these, four accessions had a highly resistant score of 1 and six had a score of 3 using a 1–9 rating scale, indicating their level of resistance to Fusarium wilt (race 4). Other germplasm accessions of chickpea were found to be moderately resistant to highly susceptible disease reaction. Likewise, the same set of germplasm was also screened for Meloidogyne incognita (race 1) using pot culture under controlled condition. Only one accession was found to be resistant to this pest. These resistant gene sources can be utilised effectively for race-specific chickpea wilt and root-knot resistance breeding programmes.

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CHICKPEA ADVANCED LINES SCREENING FOR SOURCES OF RESISTANCE AGAINST TWO MAJOR DISEASES OF CHICKPEA “WILT AND BLIGHT”

The Journal of Animal and Plant Sciences - February ◽

10.36899/japs.2022.2.0439 ◽

2021 ◽

Vol 32 (2) ◽

Keyword(s):

Sources Of Resistance ◽

Chickpea Wilt

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New sources of resistance in land races and advance germplasm against Fusarium oxysporum f. sp. ciceris race 2 causal agent of chickpea wilt

Legume Research - An International Journal ◽

10.18805/lr.v0i0.7586 ◽

2017 ◽

Author(s):

Parasappa Rajappa Saabale ◽

Raj Kumar Mishra ◽

Naimuddin . ◽

Sushil Kumar Chaturvedi

Keyword(s):

Fusarium Wilt ◽

Severity Index ◽

Sources Of Resistance ◽

Breeding Lines ◽

Land Races ◽

Resistant Varieties ◽

Chickpea Wilt ◽

Race 2 ◽

High Level ◽

Elite Breeding Lines

Fifty nine land races from 42 countries and 62 elite breeding lines developed at Indian Institute of Pulses Research, Kanpur, were screened against Fusarium wilt (race 2) under sick-field. Among land races the per cent wilted plants at seedling and reproductive stages ranged between 0 to 31.5% and 3.1 to 100%, respectively. Eightland races (ILC8632, ILC8666 ILC10729, ILC0, ILC1313, ILC211, ILC68 andILC0) were found highly resistant.The per centage of early wilting among elite breeding lines consisting of ‘desi’ and ‘kabuli’ types ranged between 0 to 28.5% and late wilting ranged between 0 to 100%. In ‘kabuli’ type chickpea, 10 genotypes (IPCK2012-129, IPCK2012-141, IPCK2012-258, IPCK2012-306,IPCK2012-132, IPCK2012-137, IPCK2012-138, IPCK2012-140, IPCK2012-143, IPCK2012-144)) and in ‘desi’ type, 15 genotypes(IPC2012-03, IPC2012-10, IPC2012-20 and IPC2012-28, IPC2012-02, IPC2012-04, IPC2012-05, IPC2012-13, IPC2012-18, IPC2012-19, IPC2012-21, IPC2012-24, IPC2012-25, IPC2012-26 and IPC2012-29) were found highly resistant/ resistant. Local severity index (LSI) was higher for land races (71.7%) compared to elite breeding lines (27.8%). Among elite breeding lines least LSI was noticed in ‘desi’ type (23.6%) in comparison to ‘kabuli’ type genotypes (32.1%). In the present study, high level of resistance was observed in elite breeding lines compared to land races. The genotypes found resistant to wilt in the present study may be exploited for development of Fusarium wilt resistant varieties.

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New sources of resistance to hazardous organisms in pea in the eastern forest steppe of Ukraine

Plant Breeding and Seed Production ◽

10.30835/2413-7510.2014.42054 ◽

2014 ◽

Vol 0 (105) ◽

pp. 70-76

Author(s):

Т. В. Сокол

Keyword(s):

Forest Steppe ◽

Sources Of Resistance

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RESISTANCE TO MILDEW OF SELECTION FAMILY OF RED CURRANT THE BELAYA POTAPENKO × № 1426-21-80

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2020/4/38-40 ◽

1970 ◽

pp. 38-40

Author(s):

O. O. Kalinina ◽

O. D. Golyaeva ◽

O. V. Panfilova ◽

А. V. Pikunova

Keyword(s):

Powdery Mildew ◽

Field Resistance ◽

Disease Development ◽

Artificial Infection ◽

Sources Of Resistance ◽

Climate Conditions ◽

High Productivity ◽

Local Soil ◽

The Family ◽

Red Currant

Powdery mildew is one of the most harmful fungal diseases that causes economically significant damage to berry plantations. The disease is common in all areas of currant cultivation in the Russian Federation. In this regard, in modern conditions of intensive berry growing, the problem of breeding cultivars that are highly resistant to diseases and pests becomes urgent. Breeders have a difficult task to combine the adaptive potential of the cultivar with its annual high productivity and resistance to biotic environmental factors. When studying the adaptability of introduced cultivars of red currant and selected forms of the Institute to local soil and climate conditions, the following cultivars were identified as sources of economic and useful characteristics and involved in selection: ‘Belaya Potapenko’ as a complex source of resistance powdery mildew and high marketable and taste qualities of berries; SS 1426-21-80 as a source of high productivity and long racemes (raceme length 11-13 cm; up to 20 berries in the raceme). On their base the selection family of red currant has been developed: Belaya Potapenko × ♂SS 1426-21-80. The study of data on the destruction of hybrid seedlings of the selection family by powdery mildew showed that in epiphytotic conditions, the percentage of intensity of the disease development varies over the periods of screening from 0.2% in May to 20.4% in June. Such indicators served as a prerequisite for conducting a comparative test of breeding material in the field under artificial infection with powdery mildew. After artificial infection on the background of epiphytosis, the rate of intensity of the disease development increased slightly and amounted to 35.6% for the family. There were 30 highly resistant seedlings in the family, 10 of which have remained stable and highly resistant since 2018. In these plants we can assume the presence of the so-called field resistance, controlled by polygens, each of which does not give a visible effect of stability, but with different combinations determines one or another of its degree. Highly resistant seedlings will be used in further breeding studies to identify new sources of resistance to powdery mildew.

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Resistance to Lettuce Infectious Yellows Virus in Melon

HortScience ◽

10.21273/hortsci.33.3.534b ◽

1998 ◽

Vol 33 (3) ◽

pp. 534b-534

Author(s):

James D. McCreight

Keyword(s):

Cucumis Melo ◽

Dominant Gene ◽

Field Tests ◽

Single Dominant Gene ◽

Limited Data ◽

Sweetpotato Whitefly ◽

Sources Of Resistance ◽

Lettuce Infectious Yellows Virus ◽

Greenhouse Tests

Yellowing of melon (Cucumis melo L.) incited by lettuce infectious yellows virus (LIYV) reduces yield and fruit quality of infected plants. LIYV is transmitted only by the sweetpotato whitefly (Bemisia tabaci Genn.). Two naturally infected field tests indicated several potential sources of resistance to LIYV. PI 124112 and `Snake Melon' had mild symptoms in both field tests whereas PI 313970 was asymptomatic in the test in which it was included. In greenhouse tests using controlled inoculation, PI 313970 was asymptomatic, had negative ELISA assays for LIYV, and was negative for LIYV in serial transfers to Chenopodium. `Top Mark' and `PMR 5' were symptomatic, had positive ELISA assays for LIYV, and were positive for LIYV in serial transfers to Chenopodium in these greenhouse tests. Limited data indicate that resistance in PI 313970 is conditioned by a single, dominant gene.

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