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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola

Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola was established on 20th October, 1969 with its head-quarter at Akola. This Agricultural University was named after the illustrious son of Vidarbha Dr. Panjabrao (alias Bhausaheb) Deshmukh, who was the Minister for Agriculture,Govt. of India. The jurisdiction of this university is spread over the eleven districts of Vidarbha. According to the University Act 1983 (of the Government of Maharashtra), the University is entrusted with the responsibility of agricultural education, research and extension education alongwith breeder and foundation seed programme. The University has its main campus at Akola. The instructional programmes at main campus are spread over in 5 Colleges namely, College of Agriculture, College of Agricultural Engineering & Technology, College of Forestry, College of Horticulture and Post Graduate Institute. At this campus 4 degree programmes namely B.Sc.(Agri.) B.Sc. (Hort.), B.Sc. (Forestry) and B.Tech. (Ag. Engg.) , two Master’s Degree Programmes viz. M.Sc.(Agri.) and M.Tech. (Agri.Engg.) and Doctoral Degree Programmes in the faculties of Agriculture and Agril. Engineering are offered. The University has its sub-campus at Nagpur with constituent College, College of Agriculture which offers B.Sc.(Agri.) and M.Sc.(Agri.) degree programmes. The Nagpur Campus is accomplished with a garden, surrounded by its natural beauty and a well established Zoo which attract the general public and visitors to the city. A separate botanic Garden is being maintained on 22 hectares with a green house for the benefit of research workers. In addition there are 2 affiliated grant-in-aid colleges and 14 private non-grant-in-aid colleges under the umbrella of this University A Central Research Station is situated at the main Campus which caters to the need of research projects undertaken by Crop Scientists of the principle crops of the region are Cotton, Sorghum, Oilseeds and Pulses.

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20173
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Subject: Botany × End date: 2019 × Start date: 2010 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    PHYSIOLOGICAL AND BIOCHEMICAL INVESTIGATION ON LEAF REDDENING IN Bt AND NON Bt COTTON (Gossypium spp.).
    (Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2017-09-16) RAUT, SUMIT MURLIDHAR.; DURGE, Dr. D. V.
    Cotton is an important commercial fibre crop of global significance which plays a dominant role in world agriculture and industrial economy. India is important grower of cotton on a global scale. Among the production constraints leaf reddening is the predominant problem of Bt cotton growers which became issue of debet for ascertaining the causes and remedies for leaf reddening. To ascertain the role of nutrients in leaf reddening, the present field experiment entitled, “Physiological and biochemical investigation on leaf reddening in Bt and non Bt Cotton (Gossypium spp.)" was carried out at AICCP, experimental field of Cotton Research Unit, Dr. PDKV Akola, (M.S.) during Kharif season of 2013-14 and 2014-15 in split plot design replicated thrice. Main plot treatments consisted of three hybrids [viz., Mallika (Bt), RCH 2 (Bt) and PKV Hybrid 2 (non Bt)], sub plot treatments were two fertilizer doses [viz., 100% RDF and 125% RDF]. Sub-sub plot treatments consisted of seven different chemical sprays [viz., 2% Urea, 2% DAP, 2% KNO3, 1% MgSO4, 500 ppm Cycocel, irrigation and control]. Thus, 42 treatment combinations were formed. The fertilizer dose for Bt (120:60:60 NPK kg/ha) and non Bt cotton (60:30:30 NPK kg/ha) was applied in two split doses. At the time of sowing 50% N and full dose of P and K was applied and remaining N was applied after 30 DAS. The two foliar sprays were given at 60 and 80 DAS. The recommended package of practices was followed during course of investigation. Besides the yield data, periodical observations on morphological (plant height, leaf area plant-1, dry matter plant-1 and red leaf incidence), physiological (photosynthetic efficiency and relative water content) and biochemical (cell sap pH, total chlorophyll, N, Mg, anthocyanin, proline and carbohydrate content of leaf) parameters were recorded at 60, 80, 100 and 120 DAS. The Phenological observations were also recorded. Soil fertility status (available N, P and K) were recorded before sowing and after harvesting in both the years. The observations on sucking pest (number of leafhopper, aphids, thrips and whitefly leaf-1) were also recorded. The experimental evidences pointed out that the incidence of leaf reddening was more in Bt cotton than non Bt cotton. The minimum intensity of reddening in Bt and non Bt cotton was observed in the treatment combination of 125 % RDF + foliar sprays with KNO3 and MgSO4. Among the foliar sprays 2% KNO3 (60 and 80 DAS) had shown minimum leaf reddening, However, the treatment combination (125 % RDF + 1 % MgSO4) was found to be the best for highest total chlorophyll content. The study also revealed that the mineral nutrients, which were mostly responsible for reddening viz., nitrogen and magnesium content in leaves, were decreased as the crop growth stage advanced. The PKV Hybrid 2 recorded maximum cell sap pH, total chlorophyll, leaf nitrogen and magnesium content than the Bt cotton hybrids. In case of fertilizer dose, 125% RDF and foliar sprays of 2% KNO3 and 1% MgSO4 maintained higher cell sap pH, total chlorophyll, nitrogen, and magnesium content of leaves in non Bt cotton than Bt cotton. Accumulation of highest proline, anthocyanin and carbohydrate were found in reddening affected leaves. It was evident that, the application of 125% RDF showed 9.21 % reduction in leaf reddening incidence. Similarly 16.14% increased seed cotton yield per plant with application of 125% RDF over 100% RDF. Per cent reduction of red leaf incidence was recorded 18.33% in 2% KNO3 treated plot followed by 1% MgSO4 i.e. 14.76% over control. Seed cotton yield per plant was increased by 39.33% in 2% KNO3 treated plot followed by 1% MgSO4 sprayed plot i.e. 31.88% over the control (untreated plots). Application of 125% RDF and the two foliar sprays of 2% KNO3 and 1% MgSO4 at 60 and 80 DAS had reduced the risk of leaf reddening as well as helped in increasing seed cotton yield in Bt and non Bt cotton hybrids at Akola conditions. It is concluded from the present study that the reduction in chlorophyll, nitrogen and magnesium content in plant at boll development stage was the cause of reddening in Bt and non Bt cotton. This study also suggested that, the nutrients were one of the causes for leaf reddening. Bt cotton had more nutrients requirement especially at boll development stage, which was fulfilled by the foliar sprays. Hence, present study also provides future guide line of research for various combinations of nutrients for foliar sprays for Bt cotton hybrids at different development stages, which can reduce leaf reddening and there by yield sustainability can be achieved.
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    ThesisItemOpen Access
    MORPHO-PHYSIOLOGICAL AND BIOCHEMICAL EVALUATION OF WHEAT GENOTYPES UNDER DIFFERENT SOWING WINDOWS.
    (Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra., 2017-12-28) BERAD, PRAVIN BABASAHEB.; Amarshettiwar, Dr. S. B.
    The present investigation entitled “Morpho-physiological and biochemical evaluation of wheat genotypes under different sowing windows.” was carried out during Rabi 2014-15 and 2015-16, at Wheat Research Unit, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, The experiment comprised of two dates of sowing i.e. 17th November and 11th December with seven promising wheat genotypes viz., AKAW-4627, AKDW-4021, AKAW-3722, AKW-1071, NIDW-295, AKAW-3997 and AKAW-4210-6. The experiment was laid out in Factorial Randomized Block Design, replicated thrice. Timely sowing (17th November) recorded significantly higher grain yield of 35.94 qt ha-1) than the crop sown on 11th December (late sowing) i.e., 28.35 qt ha-1). Grain yield ranged from 31.38 to 42.45 qt ha-1 under timely sown condition and 20.67 to 37.81 qt ha-1 under late sown condition. The early duration genotype AKAW-4210-6 recorded the significantly highest mean grain yield of 40.13 qt ha-1 among all the wheat genotypes followed by AKAW-4627 (34.47 qt ha-1), AKAW-3997 (32.43 qt ha-1), AKAW-3722 (31.76 qt ha-1), AKW-1071 (31.38 qt ha-1), AKDW-4021 (28.85 qt ha-1) and NIDW-295 (26.03 ha-1). On the basis of heat susceptibility index, genotypes viz., AKAW-4627 (0.48) identified as highly thermotolerant, AKAW-4210-6 (0.52) and AKAW-3722 (0.61) identified as thermo tolerant, are of immense commercial value. Different morpho-physiological traits viz., tillers m-1 row length at harvest, relative water content, membrane thermostability index, canopy temperature depression, biochemical traits like enzyme catalase activity and yield traits viz., productive tillers m-2, the number of grains spike-1, grain weight spike-1 and test weight were found to be correlated with grain yield. These traits may be used in the breeding programme for the development of thermo tolerant genotypes for late sown irrigated condition under changing climatic scenario. In the present investigation about 21.12% reduction in grain yield ha-1 was caused due to high temperature stress induced by late sowing. Delayed sowing affected many morpho-physiological traits at post anthesis stage. The per cent reduction in tillers-1 meter row length at harvest (9.71%), leaf area plant-1 and LAI at 75 DAS (43.21%), LAD at 60-75 DAS (22.16%), flag leaf area at 75 DAS (25.86%), total dry matter production plant-1 at harvest (24.64%) and RWC at 75 DAS (6.68%). Membrane stability index was reduced by 5.78% and 5.58% at heading and grain filling stage respectively. Peroxidase enzyme activity decreased by 39.98% at heading stage, however catalase enzyme activity increased by 110.71% at 90 DAS. Grain micronutrient content was decreased due to late sowing i.e. Zinc 13.93%, Iron 11.79%, Manganese 5.34% and Copper 19.12% reduction over timely sowing. Forced anthesis and maturity by 6.40 and 8.49 days were observed under late sown condition. Yield attributing traits viz., productive tillers m-2 (21.10%), spike length (10.97%), number of grains spike-1 (16.25%), grain weight spike-1 (10.07%), spikelets spike-1 (16.23%), grain yield plant-1 (21.41%), Test weight (2.70%) and grain yield ha-1 (21.12%) were decreased under late sown condition. On the basis of grain yield, genotypes viz., AKAW-4627, AKAW-4210-6 and AKAW-3997 are identified for normal sown irrigated condition. Genotypes viz., AKAW-4627, AKAW-4210-6 and AKAW-3722 are identified for late sown irrigated condition. Genotypes viz., AKAW-4627 and AKAW-4210-6 are identified for both normal and late sown irrigated conditions.
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    ThesisItemOpen Access
    MOLECULAR DIVERSITY, COMBINING ABILITY AND INHERITANCE STUDIES FOR FERTILITY RESTORATION IN CGMS BASED PIGEONPEA HYBRIDS (Cajanus cajan (L.) Millspaugh.
    (Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola., 2017-12-21) MESHRAM, MILIND PANDHARI.; Patil, Dr. A. N.
    Present study entitled “Molecular Diversity, Combining Ability and Inheritance Studies for Fertility Restoration in CGMS based Pigeonpea Hybrids (Cajanus cajan (L.) Millspaugh)” was carried out during 2015-2017 at experimental field of Pulses Research Unit and Biotechnology Centre, Department of Agricultural Botany, Dr. P.D.K.V., Akola. Research was undertaken to study the GCA effects of parents and SCA effects of crosses and heterosis studies of hybrids developed by using five CGMS lines with 12 diverse restorers in Line x Tester fashion and evaluated in three different environments during 2016-17. Inheritance of fertility restoration was studied using four crosses during 2014-15 to 2016-17. Diversity of used parents was studied through SSR polymorphism of A, B and R lines. Similarly stable hybrids were identified over three environments. Sixty hybrids, seventeen parents and two checks (PKV TARA and BSMR 736) were evaluated in RBD with three replications over three enviornments Akola, Washim and Badnapur Dist. Jalna during Kharif 2016-17. Observations were recorded on twelve yield and yield contributing traits. The hybrids AKCMS 10A x AKPR 372, AKCMS 13A x AKPR 402, AKCMS 10A x AKPR 364, AKCMS 10A x AKPR 303, AKCMS 10A x AKPR 178 and AKCMS 11A x AKPR 303 showed high positive average heterosis, heterobeltiosis and standard heterosis over the both the commercial checks for seed yield plant-1. These high heterotic hybrids also exhibited higher per se performance, high positive and significant SCA effects and positive GCA effects of one of the parent for seed yield plant-1 with more than 95 per cent plant fertility. Female parent AKCMS 10A exhibited significant and positive GCA effect for seed yield also recorded significant and positive GCA effects for other seven important yield contributing traits. Similarly male parents AKPR 364 for nine traits, AKPR 178 for 8 and AKPR 303 for 7 and AKPR 344 for six important traits including seed yield exhibited significant and desirable GCA effects. Hence these parents can be used in hybrid pigeonpea breeding work. Hybrids AKCMS 10A x AKPR 372, AKCMS 11A x AKPR 372 and AKCMS 13A x AKPR 250 were found stable for seed yield plant-1 along with one or more desirable traits. The crosses showing stability for yield need to be tested for yield across more diverse environments over seasons. The study of genetics of fertility restoration indicated monogenic as well as digenic control of fertility restoring gene. This information is useful for diversification restorer lines in good agronomic background for development of high yielding fertile hybrids. Twenty two parents including 5 CGMS lines, 5 maintainer lines and twelve restorer lines were evaluated to study genetic diversity of parents through SSR polymorphism at Biotechnology Centre, PGI, Akola. Information on molecular diversity revealed that four SSR primers viz., L 240 and PV 14, Cctta005 and Ccat001 which expressed high PIC values indicating their utility for assessment of genetic diversity in pigeon pea. The high range of similarity coefficient values for SSR primers indicating presence of substantial genetic diversity among the studied parents.