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Agriculture University, Jodhpur

Agriculture University, Jodhpur was established on 14th September, 2013 by Government of Rajasthan under Agriculture University, Jodhpur Act 21 of 2013 to focus on holistic development of arid and semi-arid regions of the state covering 6 districts (Jodhpur, Barmer, Nagaur, Pali, Jalore and Sirohi), constituting 28% of total geographical area which is sustaining 20.8% human and 28.4% animal population of the state. The districts under jurisdiction of the university cover 3 agro-ecological zones of the state. These are Arid Western Plain Zone Ia (Jodhpur and Barmer districts), Transitional plain of Luni Basin Zone IIb (Jalore, Pali, and Sirohi districts) and part of Transitional Plain of Inland Drainage Zone IIa (Nagaur district). The university has 1 institute of diploma and 3 colleges to produce highly competent educated human resources in agriculture and allied sciences besides 2 agricultural research stations, one each in zone Ia & IIb and 3 agricultural research sub stations, one in each zone to prepare, plan and perform highly need based research in this acute water scarce but naturally rich bio-diversified zone of the country. The third most important part in tri-pillar (Teaching, Research & Extension) of agricultural development, the extension for transfer of technologies are reached to doorsteps of the farming community by 6 Krishi Vigyan Kendras (K-V-Ks), 2 in Nagaur district and 1 each in Jodhpur, Barmer, Jalore & Sirohi districts under the umbrella of the university. The different units of teaching, research and extension are coordinating to systematically run by the headquarter situated at Mandor, Jodhpur.

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  • ThesisItemOpen Access
    Population Dynamics of Insect Pests and Management of Aphid, Lipaphis erysimi (Kalt.) in Mustard
    (Agriculture University, Jodhpur, 2022-07-25) PRATIHAR, AKSHAY KUMAR SINGH; Sundria, M. M.; Pandey, Shalini; Bhardwaj, Rahul
    The investigation on “Population Dynamics of Insect Pests and Management of Aphid, Lipaphis erysimi (Kalt.) in Mustard” under semi-arid condition was carried out in Rabi, 2021-22 at Research Farm of Agricultural Research Station, Mandor, Jodhpur. The aphid infestation was initiated from 51st SMW and the peak activity (126.20 aphid/10 cm terminal shoot) on 4th SMW. After that progressive decline was observed. The painted bug infestation was observed two times, where it was initiated early on 45th SMW and no infestation during from 2nd SMW to 7th SMW. Its infestation was occurred again at 8th SMW and reached to peak level (5.13 bugs/plant) at 10th SMW. The flea beetle infestation was initiated from 1st SMW and continued till 8th SMW. Peak activity on 4th SMW (0.93 beetles/plant) and then gradually declined. The leaf webber infestation was initiated from 48th SMW and reached to peak activity (2.87 larvae/plant) on 6th SMW. Natural enemy i.e., Coccinella septempunctata appeared in 1st SMW and peak activity was noticed on 8th SMW. Mustard aphid, flea beetle and leaf webber were significantly negative correlated with minimum temp. While, ladybird beetle was significantly positive with minimum temp. and sunshine, also. Painted bug and ladybird beetle both were significantly positive with maximum temp. and average temperature whereas, aphid had significantly negative with average temperature. Morning RH correlated significant positive with aphid. While, significant negative relation of ladybird beetle with morning and avg. RH. Painted bug was significant negative correlation with evening RH and avg. temperature. There was no significant relation with rainfall. Ten genotypes/varieties of Indian mustard (Brassica juncea) were screened against mustard aphid, the results revealed that TM 108-1, Kranti and Bio 902 were found as resistant, TM 267-3, TM 316, TM 304-1, RH 749, PM 31 and GDM 4 were identified as the moderately resistant while LS-FF-57 was found as tolerant.Ten genotypes/varieties of Yellow sarson (Brassica rapa) were screened against mustard aphid, the results revealed that MYS-152, YSH-401 and NRCYS 05- 02 were found as resistant, RMYS-1, RMYS-2, RMYS-3, MYS-180, MYS-183, Jhumka and Pitambari were identified as moderately resistant. Ten genotypes/varieties of five different Brassica species were screened against mustard aphid, the results revealed that none of the genotypes/varieties were found as resistant. Tapeshwari, Bhawani, Pusa Swarna, Pusa Aaditya, MBT-27, MBT-4 and GP 115-1 were identified as the moderately resistant whereas, varieties MN-1, Karantara and RTM-1351 were found as tolerant. The treatment of imidacloprid 17.8 SL was found most effective followed by thiamethoxam 25 WG and dimethoate 30 EC while, treatments of diafenthiuron 50 WP and chlorpyriphos 20 EC as least effective. The maximum yield of 3861 kg/ha was recorded in the plot treated with imidacloprid 17.8 SL followed by thiamethoxam 25 WG (3444 kg/ha) and dimethoate 30 EC (3194 kg/ha). Maximum net profit of Rs. 2,00,290 ha-1 was obtained from imidacloprid 17.8 SL. The highest B: C ratio of computed in imidacloprid 17.8 SL (6.38:1) followed by 5.60:1 in thiamethoxam 25 WG and 4.99:1 in dimethoate 30 EC while, minimum (2.71:1) was obtained in chlorpyriphos 20 EC.