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Sri Karan Narendra Agriculture University, Jobner

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    ThesisItemOpen Access
    Effects of Priming on Seed Germination and Biochemical Parameters of Chickpea (Cicer arietinum L.) Under Laboratory Conditions
    (2022) Garg, Subhangi; Kakralya,B.L.
    Pulses are a vital part of a healthy diet because they are a rich source of protein, have low fat content, lack cholesterol, have a lower glycemic index and also a rich source of micro nutrients. Pulses are also an integral part of crop rotation as they also regulate the soil health. Chickpea (Cicer arietinum L.) is an important pulse of rabi season in Rajasthan. Poor crop establishment is a serious problem in chickpea as they are usually sown in semi arid regions of Rajasthan. Seed priming is a traditional, easy and cost effective technique to enhance the seed quality parameters as it hastens the germination, growth and development of the seeds. To study the effect of Hydropriming and Halo priming and different priming hours an investigation was carried out during rabi season 2021-22 in the laboratory, Department of Plant Physiology, Sri Karan Narendra College of Agriculture, Jobner, Jaipur on Chickpea (Cicer arietinum L.) genotype RSG-888 Under Laboratory In this experiment priming was done for different period of time (0, 2, 3, 4, & 5 hrs.) with different priming solutions (Distilled water, 2% KNO3, 2% CaCl2 and 100 ppm SNP). The investigation revealed that 5 hours of priming was found to be optimum for all the four treatments (Distilled water, 2% KNO3, 2%
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    ThesisItemOpen Access
    Population Dynamics and Management of Hadda Beetle, Henosepilachna vigintioctopunctata (Fab.) on Indian Ginseng, Withania somnifera (L.) Dunal
    (2022) Kumari ,Neelam; Kumawat, K.C.
    The investigation entitled „Population dynamics and management of hadda beetle, Henosepilachna vigintioctopunctata (Fab.) on Indian ginseng, Withania somnifera (L.) Dunal‟ was conducted at Entomology Department, S.K.N. College of Agriculture, Jobner (Rajasthan) during Kharif, 2021. The study on the population dynamics revealed that the infestation of hadda beetle, Henosepilachna vigintioctopunctata (Fab.) (grub and adult) started in the first week of September and reached at peak in second week of October. Hadda beetle population (grub and adult) had significant positive correlation with maximum temperature (r=0.64), while the minimum temperature, relative humidity and rainfall showed non-significant correlation with it. The population of hadda beetle, H. Vigintioctopunctata (egg batch) had significant positive correlation with maximum temperature (r= 0.65) and non-significant correlation with minimum temperature, relative humidity and rainfall. The natural enemies of insect pests recorded in the Indian ginseng were chrysopid, Chrysoperla zastrowi arabica (Henry et al.), Camponotus compressus (Fab.), Monomorium indicum Forel and spider. Their populations were found in traces only. Therefore the population could not be recorded. The duration of egg, grub, pupa and adult stages were found to be 7.7, 14.5, 5.9 and 57.5, days respectively. Both grubs and adults were found destructive in nature. The average body length of 1st, 2nd, 3rd and 4th instar grub was 2.05 ± 0.34 mm, 3.03 ± 0.24 mm, 4.18± 0.10 mm, 6.21± 0.27 mm and 3.11± 0.29 mm, respectively. The average body breadth of 1st, 2nd, 3rd and 4th instar grub was 1.11±0.17 mm, 1.42± 0.06 mm, 1.89± 0.25 mm and 3.11± 0.29 mm, respectively. The average pre pupal length was 5.01± 0.46 mm and breadth was 2.71± 0.33 mm. The average pupal length was 5.98± 0.05 mm and breadth was 3.64± 0.24 mm. The average body length of male was 6.21± 0.17 mm and breadth was 4.62± 0.28mm, whereas in female the length was 7.15± 0.28 mm and breadth was 5.19± 0.27mm. Out of eight biopesticides and botanicals tested against hadda beetle on Indian ginseng crop, revealed that azadirachtin (0.03 EC) 5 ml/ l proved to be most effective followed by Neem oil and Neem seed kernel extract (5%) and B.bassiana (1.15 WP). The treatment ofL. lecanii (1.15 WP) and M. anisopliae (1.15 WP) were ranked in middle order of efficacy, while the plant products, viz., Karanj seed extract (5.0 %) and Karanj oil proved to be the least effective.
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    ThesisItemOpen Access
    Identification of Low Temperature Stress Tolerant Ber (Ziziphus mauritiana L.) Cultivars Under Semi-arid Condition
    (2022) Chawala, Manisha; Bagdi,D.L
    The study “Identification of Low Temperature Stress Tolerant Ber (Ziziphus Mauriitiana L.) Cultivars Under Semi-arid Condition” was conducted during rabi season of 2021-22 at Asalpur Farm, S. K. N. College of Agriculture, Jobner. The objectives of present investigation were: 1. To evaluate morpho-physiological traits of ber under low temperature stress. 2. To investigate the biochemical and antioxidant activity in leaves of ber cultivars under low temperature stress. 3. To find out the yield and quality of ber cultivars under low temperature stress. In this experiment 25 cultivars of ber were used for the identification of low temperature stress tolerant, medium tolerant and susceptible cultivars under semi-arid condition. The cultivar used in experiment were saphar chandni,Gola, Tikadi, Thornless, Katha, Kathabombay, Tabes taso, Mehroon, Dharkhi, Lakhan, Illaichi, Pathani, Chomu local, Najuk, Kheera, ZG-3, Katha phal, Sukhwani, Ashapuri -2, Supari, Chencho, Khirni, Kumari, Rashmi and Heera. Among the ber cultivars Sukhwani proved significantly superior over rest of the cultivars followed by Tabes taso, Dharkhi and Ashapuri -2 in respect to total chlorophyll protein and relative water content of ber leaves, leaf burning injury, proline content, cell membrane injury,fruit deformity, ascorbic acid, peroxidase activity,hydrogen peroxide content under low temperature stress. The yield and yield attributes differed significant with each other. Katha cultivar performed better in terms of yield and yield attributes like fruit size, fruit weight ,pulp stone ratio and fruit yield in comparision to other cultivars under low temperature stress condition in semi arid condition.
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    ThesisItemOpen Access
    Study on Productive, Reproductive Performance and Milk Composition of Gir Cows under Semi-Arid Conditions
    (2022) Mahur,Giriraj; Datt, Mahesh
    The present study was conducted at Dairy Farm of S.K.N. College of Agriculture, Jobner to assess the productive, reproductive performance and milk composition of Gir cows under semi-arid conditions. The data of 33 Gir cows those had completed three consecutive lactations was collected from the records maintained at college Dairy Farm over a period of Five years (2017 to 2022) for studying productive and reproductive performance. A total of 12 Gir cows which were in early lactation were selected for studying milk composition. This study was conducted from March 2022 to April 2022 with 216 milk samples from Gir cows. This herd is being maintained at S.K.N. College of Agriculture, Jobner Dairy Farm under semi-arid condition. Productive and reproductive performances were analyzed to determine, total lactation milk yield, standard milk yield, lactation length, dry period, service period, gestation period and calving interval during second, third and fourth lactation. The overall means obtained for total lactation milk yield, standard milk yield (305-DMY), lactation length, dry period, service period, gestation period and calving interval in Gir cows were 1833.45±84.91 litres, 2095.81±75.58 litres, 266.04±6.69 days, 128.94±7.16 days, 113.36±7.72 days and 281.53±0.35 days 394.98±7.78 days, respectively
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    ThesisItemOpen Access
    Effect of Drip Irrigation Scheduling and Fertigation on Growth, Yield and Quality of Pomegranate (Punica granatum L.) cv. Bhagwa
    (2022) Jangir, Manisha; Meena, K.K.
    The field experiment to study the “Effect of Drip Irrigation Scheduling and Fertigation on Growth, Yield and Quality of Pomegranate (Punica granatum L.) cv. Bhagwa” was conducted at Horticulture farm, Rajasthan Agricultural Research Institute, Durgapura (Jaipur-Rajasthan) during 2019-20 and 2020-21. The experiment was executed in Factorial Randomized Block design and replicated 3 times with 12 treatment combinations consisting of 3 drip irrigation levels i.e. I1 (50% irrigation at PE), I2 (75% irrigation of PE), I3 (100% irrigation of PE) and 4 fertigation levels F1 (100 % RDF as basal dose plant-1 ), F2 (100 % RDF at weekly interval plant-1 ), F3 (75 % RDF at weekly interval plant-1 ) and F4 (50 % RDF at weekly interval plant-1 ), The treatment of different irrigation levels were given from July to November and fertigation levels were through water soluble fertilizer grade (WSF19:19:19) in 10 splits from fruit set to maturity stage and remaining nitrogen was supplemented through urea. The experimental results revealed that among different treatment combinations, maximum values for the vegetative growth characters such as gain in plant height, plant spread [(E-W) and (N-S)], Leaf area index and minimum values for Initiation of flowering (days) after pruning and Fruit set to maturity (days) was found under the treatment 100% irrigation at PE level+100% RDF through drip (I3F2) which was found the best for vegetative characteristics Yield and yield attributing characters such as fruit retention (%), No. of fruits plant-1 , average fruit weight (g), fruit diameter (cm.)
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    Institutional PublicationsItemOpen Access
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    Institutional PublicationsItemOpen Access
    Semester-II: Principles of organic Farming
    (2023) SKNAU, Jobner
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    Institutional PublicationsItemOpen Access
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    Institutional PublicationsItemOpen Access
    Semester-II: Principles of Seed Technology
    (2023) SKNAU, Jobner