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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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2020 - 20226
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Subject: Nematology × End date: 2022 × Start date: 2020 ×
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Now showing 1 - 6 of 6
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    ThesisItemOpen Access
    Studies on the effect of various factors on survival and efficacy of Heterorhabditis spp. against brinjal shoot and fruit borer, Leucinodes orbonalis Guenee
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-11) Deepak Kumar; Anil Kumar
    Present investigations were carried out on “Studies on the effect of various factors on survival and efficacy of Heterorhabditis spp. against brinjal shoot and fruit borer, Leucinodes orbonalis Guenee” under laboratory and field conditions in Department of Nematology, CCS HAU, Hisar between years, 2019 to 2022. Entomopathogenic nematodes (EPNs) infestations were found in 40 of the 160 soil samples that were collected from eight districts of Haryana during survey. On the basis of corpse colour, 25 of the 40 soil samples tested positive for Steinernema species and eight of those contained Heterorhabditis species. The highest frequency of occurrence of EPNs was found in Panipat (40.9%) followed by Hisar (37.5%) and Sonipat district (36.4%), while Karnal district had the lowest incidence of EPNs i.e. 19 percent. Among the four temperature tested for storage, both of the effective isolates of H. indica (D-2 & D-6) had greater viability at a temperature of 25º C. The highest multiplication of IJs of H. indica D-2 and H. indica D-6 was observed in modified dog biscuit medium followed by modified wout’s medium-III. Survival and activity of EPNs decreased gradually in glycerin and liquid paraffin antidesiccants in 90 days storage. The active IJs obtained from glycerin @ 1 percent storage, showed maximum efficacy against the test insect in both the isolates of H. indica (D-2 & D-6). When H. indica isolates were applied in two spray treatments with a three-day interval, the maximum mortality of Leucinodes orbonalis was seen and this was considerably comparable with spinosad 45 SC @ 72ml per acre was applied as a treatment for the management of insect pests of brinjal in field conditions. So, the native isolates of H. indica (D-2 & D-6) proved virulent and effective against brinjal shoot & fruit borer in field conditions. Hence, it was concluded from the study that H. indica isolates are environmentally safe alternate to chemical pesticides in brinjal.
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    ThesisItemOpen Access
    Studies on development and bioefficacy of chitosan based nano formulation (s) against root knot nematode, Meloidogyne incognita
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-11) Sharma, Lochan; Banakar, Prakash
    Present study was conducted to investigate the synthesis, characterization and bioefficacy of chitosan based nanoformulation (s) against root knot nematode, Meloidogyne incognita. Nanoparticles were synthesized by ionic gelation method and characterized by DLS, FTIR, FESEM and TEM. The DLS results confirmed the size, stability and charge of synthesized Cu-chitosan and chitosan-saponin NPs.Whereas FTIR, FESEM, FESEM-EDS and TEM, observations confirmed the functional group, crystalline porous structure, elemental compostion and spherical shape of synthesized nanoparticles. Encapsulation and release profile of Cu was confirmed by ICP-MS under varying pH and time.Maximum Cu release confirmed at pH 1 and 144 h of time period. In in vitro, assay results revealed that increasing the concentration and time exposure of Cu-chitosan and chitosan-saponin NPs leads to more nematode mortality and egg hatching inhibition. The maximum mortality and egg hatching inhibition was documented in 1000 ppm of Cu-chitosan NPs after 72 and 96 h respectively. In pluronic gel experiment NPs exposure to M. incognita juveniles for 16 h affect host finding behavior. A minimum number of juveniles reached around tomato roots were observed in chitosan-saponin NPs at 1200 ppm in 4 and 8 h as compared to water and octopamine control. Increasing the NPs concentration reduced nematode penetration and minimum number of nematode penetrated in 1200 ppm of chitosan-saponin NPs as compared water control in tomato roots. In management experiment foliar spray was more effective in increasing the plant growth parameters as compared to seedling root dip and soil drenching method. But, in reduction of nematode parameters observed in seedling root dip treatment (8 h) was more effective as compared to 4 h seedling root dip and other treatments. Cu-chitosan is more effective in reduction of number of galls, number of egg masses, eggs per egg mass and soil population per 200 cc soil, while chitosan-saponin NPs was more effective in increasing plant growth parameters. It was observed NPs also caused toxicity in M. incognita J2s and up regulates the detoxifying genes. Hence, the chitosan based nano formulation (s) proved to be of great nematicidal potential and opened new opportunities for expanding their effectiveness as new nematode control agents.
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    ThesisItemOpen Access
    Studies on the efficacy of native strains of entomopathogenic nematodes in the management of insect-pests of cauliflower
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-11) Babita Kumari; Anil Kumar
    Out of 280 soil samples collected from different localities, 83 samples contained EPNs with 29.6 per cent frequency of occurrence. Six isolate (strains) viz., HAR-St-I, HAR-St-II, HAR-St-III, HAR-Ht-I, HAR-Ht-II and HAR-Ht-III were selected from the EPNs isolated. On the basis of morphological, morphometric and molecular characterization, these isolates were identified as Metarhabditis amsactae. Efficacy of these strains of M. amsactae were tested against Pieris brassicae, Spodoptera litura and Plusia orichalcea under laboratory condition, at four inoculum levels i.e. 05, 10, 20 and 40 IJs /insect larva. In both strains (HAR-St-II and HAR-Ht-III), as the observation time and level of IJs increased, there was a significant increase in per cent mortality of all three insects. Recovery of M. amsactae was less from cadaver of Plusia orichalcea than Pieris brassicae and Spodoptera litura.In Wout’s medium-I, multiplication of strain HAR-St-II was more than strain HAR-Ht-III, both after 30 and 60 days. Multiplication of both strains of M. amsactae was higher after 30 days than after 60 days. Among cadaver based formulation, alginate gel, foam chips, clay chips and water dispersible granules, cadaver based formulation was found to be best. Maximum numbers of active IJs after 90 days were obtained from this formulation were 3370 and 2728 /Petri plate in strains HAR-St-II and HAR- Ht-III, respectively. In 25, 50, 75 and 100 μm nozzles, 100 μm nozzle gave maximum larval mortality of S. litura, and mortality increased with increase in size of nozzle and period of observation. Two sprays of both strains proved better than single spray, but it was less effective than Malathion 50 EC @ 400 ml/acre to control insect-pests of cauliflower.
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    ThesisItemOpen Access
    Isolation, identification and evaluation of indigenous fungal bio-agents against Meloidogyne incognita in okra
    (CCSHAU, Hisar, 2021-07) Saharan, Ritul; Patil, J.A.
    Investigations were carried out for the Isolation, identification and evaluation of indigenous fungal bio-agents against Meloidogyne incognita in okra both under in-vitro and pot house conditions. Under in-vitro condition, the effect of fungal isolates on egg hatching inhibition and juvenile mortality of Meloidogyne incognita was assessed at various concentrations, i.e., 20%, 40%, 60% and 80%. Among all the isolates, Trichoderma asperellum FbMi-6 gave significantly highest and maximum mortality of root-knot nematode juvenile followed by Trichoderma asperellum FbMi-4, at all the four concentrations. The highest mortality of juveniles was observed at 80% concentration. For hatching inhibition of root-knot nematode at all the different concentrations, i.e., 20%, 40%, 60% and 80% showed that all fungal isolates inhibited the hatching of root-knot nematode as compared to the untreated check. Significantly highest and maximum egg hatching inhibition was observed in Trichoderma asperellum FbMi-6 followed by Trichoderma asperellum FbMi-4. The rate of juvenile hatching of all the isolates was inversely proportional to the concentration of culture filtrate. The nematicidal activity of the culture filtrates of Trichoderma isolates increased with the increase in the concentration of the filtrates and the time of exposure. Under pot conditions, significantly highest plant growth parameters (plant height, fresh shoot and root weight, dry shoot and root weight, germination percentage and germination vigour) were achieved in neem cake enriched with T. asperellum FbMi-6 @ 20g kg-1 soil followed by neem cake enriched with T. asperellum FbMi-4 @ 20g kg-1 soil. Numbers of galls per plant, number of eggs per egg mass, number of egg masses per plant, final nematode population and reproduction factor were significantly lowest in T. asperellum FbMi-6 @ 20g kg-1 soil followed by neem cake enriched with T. asperellum FbMi-4 @ 20g kg-1 soil. Higher amount of polyphenols, total chlorophyll, nitrogen balance index, anthocyanin and flavonoids in neem cake enriched with T. asperellum FbMi-6 @ 20g kg-1 soil as compared with untreated inoculated check.
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    ThesisItemOpen Access
    Studies on life cycle, pathogenicity and resistance of Meloidogyne graminicola on pearl millet [Pennisetum glaucum (L.) R. Br.]
    (CCSHAU, Hisar, 2020-02) Gurpreet Singh; Kanwar, R.S
    Investigations were carried out on screening of germplams of pearl millet against Meloidogyne graminicola, its life cycle and pathogenicity on susceptible hybrid HHB 272. Biochemical and physiological changes induced by Meloidogyne graminicola susceptible and resistant hybrids of pearl millet were also studied. Out of 36 germplasms lines of pearl millet 25 showed resistant, 9 moderately resistant and only 2 showed susceptible reaction. Under screen house conditions nematode completed its life cycle J2 to J2 in 23 days at average maximum temprature 35.1 0C maximum and a minimum average of 24.6 0C. 500 J2/kg soil was found pathogenic on pearl millet hybrid HHB 272. All the inoculum levels significantly reduced the plant growth parameters except dry plant weight at 2000 and 4000 J2/kg soil. Nematode multiplication rate was also increased up to 2000 J2/kg soil but after this level it was reduced. Males population in the roots was increased with higher inoculums level. Per cent increase in protein and phenol of root and shoot of pearl millet was recorded in resistant (HHB 146) and susceptible hybrid (HHB 272). Protein content was increased more in roots of susceptible hybrids as compared to resistant hybrid. Increase in the total protein was high up to 30 DAI and became lower at 45 DAI. Contrary to it, phenol content in root and shoots was increased more in resistant hybrid as compared to susceptible hybrid. At all the observation periods, phenol content was higher in resistant plants as compared to susceptible plants. Total sugar in shoot portion decreased in both the hybrids while it increased in the infected roots. Per cent decrease in total sugar content in shoots was reduced with passage of time. Increase in the sugar per cent in susceptible hybrid was much higher than the resistant hybrid. Physiological parameters viz., chl a, chl b, carotenoid, NDVI were reduced more in susceptible than resistant hybrids. Decrease in all these parameters was much pronounced in susceptible hybrids as compared to resistant plants
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    ThesisItemOpen Access
    Population development and management of rice root-knot nematode, Meloidogyne graminicola in rice
    (CCSHAU, Hisar, 2021-09) Rohit Kumar; Vinod Kumar
    Investigation was carried out on “Population development and management of rice root-knot nematode, Meloidogyne graminicola in rice”. In population development on different soil-types, growth parameter of rice and population development of M. graminicola was studied in four different types of soil viz., sandy loam, loamy sand, clay loam and sandy soil. Maximum and significantly higher growth parameters of rice was observed in clay loam soil followed by loamy sand, sandy loam and sandy soil. Nematode multiplication and reproduction was significantly highest in sandy soil followed by sandy loam, loamy sand and clay loam. In different water regimes experiment, growth parameter of rice and population development of M. graminicola was studied in four different water regimes viz., irrigation after 24 hours, irrigation on alternate days, flooded and saturated. Maximum and significantly higher growth parameters of rice was recorded in flooded condition followed by saturated condition, irrigation after 24 hours and irrigation on alternate day. Nematode multiplication and reproduction was significantly highest in irrigation on alternate day followed by irrigation after 24 hours, saturated condition and flooded condition. For screening, out of 47 genotypes of rice were screened, four genotypes (HKR 09-189, HKR 09-93, IR 95780-43-1-1-1 and NVSR 2098) showed resistant reaction and 15 genotypes showed moderately resistant reaction against M. graminicola. Remaining genotypes were either susceptible or highly susceptible reaction against M. graminicola. Under nursery condition, maximum and significantly higher plant growth parameters of rice were observed in plants treated with neem cake enriched with Pseudomonas fluorescens @ 50 g/pot followed by FYM enriched with Trichoderma viride @ 50 g/pot. It was found that nematode reproduction and multiplication parameters such as number of galls/seedling, no. of eggs/seedling and final nematode population were significantly reduced in neem cake @ 50 g/pot + P. fluorescens @ 50 g/pot. Between different organic amendments higher plant growth parameters were obtained in neem cake than FYM. Similarly, in case of bio-agents, significantly higher plant growth parameters were observed in neem cake enriched with P. fluorescens followed by T. viride and Purpureocillium lilacinum.