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Acharya Narendra Deva University of Agriculture & Technology, Ayodhya

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Author: Kumar, Deepak ×
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    ThesisItemOpen Access
    Depth wise studies of soil properties as affected by different agroforestry system
    (ANDUAT,Kumarganj, Ayodhya, 2021-08-17) Kumar, Deepak; Kumar, Suresh
    Soil Sampling was done on GPS basic Investigation area of the agro Forestry farm to evaluate the effect of plantations of tree species and cropping systems on soil Physico-chemical and biological characteristics and their correlations and carbon sequestration.
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    ThesisItemOpen Access
    Studies of the Variabilities in Alternaria Alternata causing leaf spot of Ber(Ziziphus mauritiana Lamk.)
    (ANDUAT, Kumarganj, Ayodhya, 2021-08-04) Kumar, Deepak; Singh, Dr. H.K.
    The Indian jujube (Zizyphus mauritiana Lamk.) is one of the most important fruit trees, widely planted in tropics, subtropics regions and Mediterranean regions. India is considered the origin of ber. The fruit is Rhamnaceae, which is generally considered the fruit of the poor. Ber is a good source of carbohydrates, essential minerals, ascorbic acid, iron, calcium, and phosphorus etc. Ber are attacked by many pests and pathogens. Many fungal diseases are also present such as powdery mildew (Oidium erysiphoides f.sp. zizyphi), rust (Phakospora zizyphus vulgaris), leaf spot (Alternaria alternata, Cercospora zizyphi, Cladosporium zizyphi, Phoma macrostoma, Isariopsis indica var. Zizyphi), etc. Due to the Alternaria Alternata fungus, it causes maximum damage to plants. As a result of this disease large parts of the blade are burnt and in such cases the leaflets often wilt and drop and cause severe yield loss. This study was conducted in the ber growing area of Uttar Pradesh, Ayodhya. The experiment carried out at ANDUAT, Kumarganj Main Experiment Station of Horticulture (MES)and plant pathology laboratory in 2019-2021. This fungus was isolated from infected leaves of ber plants and isolation, purification and identification of pathogen was performed. Morphological and cultural study was performed by Poison food technique to find that the fungus was Alternaria alternata with branching mycelium. And septate with light brown to blackish conidiophore in the acropetal sequence. And spores are olive colured, green to dark brown with transverse and longitudinal septa.
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    ThesisItemOpen Access
    Incidence and management of bark eating caterpillar (Indarbela sp.) on aonla
    (ANDUAT, kumarganj, Ayodhya, 2021-07-30) Kumar, Deepak; Chandra, Umesh
    The studies on. Incidence and management of bark.eatingcaterpillar, Indarbela sp. revealed that in Agronomy Research Farm of ANDUAT, the minimum incidence was recorded in 1st SMW (65.73 %) and maximum incidence was racorded in 48 SMW (86.89 %).The average minimum number of active holes per infested tree were recorded in 1st SMW(.66) and maximum number of active holes were recorded in 36 SMW(7.36). In Main Experiment Station Horticulture of ANDUAT, the minimum incidence was recorded in 1st SMW (55.5 %) and maximum incidence was racorded in 39 SMW (83.85%). The average minimum number of active holes per infested tree were recorded in 1st SMW(.56) and maximum number of active holes were recorded in 36 SMW(6.55). In Akma Research farm of ANDUAT, the minimum incidence was recorded in 33 SMW (44.78 %) and maximum incidence was racorded in 48 SMW (83.85%). The average minimum number of active holes per infested tree were recorded in 33 SMW(.45) and maximum number of active holes were recorded in 35 SMW(3.33). The data of relationship mean incidence of bark eating caterpillar( Indarbela sp). with abiotic factor was worked out and infestation had highly negative non-significant correlation with minimum temperature (-0.216NS) as well as maximum temperature (-0.817**), however it was significant positive correlated with relative humidity (0.761**) and non-significant negative correlated with rainfall (- 0.339) in the year of 2020. Among different managemeot practices Thrusting of wire in active hole + plugging the hole with mud, thrusting of wire + plugging holes with cotton swab dipped in Thiomethoxam WS proved quite effective in checking the infestation causing 100 and 90 per cent larval mortality.