Thumbnail Image

Theses

Browse

20216
Reset filters
Subject: Agricultural Meteorology × End date: 2021 × Start date: 2021 ×
Reset filters

Search Results

Now showing 1 - 6 of 6
  • Thumbnail Image
    ThesisItemOpen Access
    Spatio-temporal trend analysis of evapotranspiration in different agro-climatic zones of Haryana
    (Chaudhary Charan Singh Haryana Agricultural University, Hisar, 2021-09-21) Punia, Rahual; Anurag
    Evapotranspiration is the integrated process of evaporation and transpiration and is affected by meteorological variables, crop characteristics, and management practices, as well as environmental characteristics. There have been many studies in the estimation of ETo around the world. Evapotranspiration plays an important role in maintaining water balance of terrestrial ecosystem and for irrigation scheduling in crop production. The present study was carried out at Deptt. of Agricultural Meteorology, CCS HAU Hisar, to compute spatio-temporal trend analysis of evapotranspiration at different location of Haryanaviz. Ambala, Karnal, Bawal, Hisar and Sirsa that are evenly distributed in two agro-climatic zones of Haryana. The study was based on PET calculation by maximum and minimum temperature using Thornthwaite method. The calculated values were interpreted on monthly as well as seasonal scales. Highest normal annual PET was at Sirsa with 5.5 mm/day followed by Bawal (4.72 mm/day), Hisar (4.55 mm/day), Ambala (4.34 mm/day) and Karnal (4.14 mm/day). The annual PET had an increasing trend as per MK test at all locations. Sirsa and Ambala had significant +ve trends. In Kharif season, Sirsa had highest PET while in Rabi, Ambala showed highest value of normal PET. An increasing trend was observed at all locations during Kharif and Rabi seasons but significant trends were revealed at Sirsa and Ambala in Kharif, and Bawal and Ambala in Rabi seasons. In winter season (January-February) all stations had a decreasing trend of PET with significant decreasing trends at Karnal location. On monthly scale, June had the highest and January had the lowest value of PET in Haryana as observed at all five locations.Month of October observed with significantly increasing trends in PET at all locations expect for Karnal. January and December months observed with decreasing trends at all location. Overall, for the state of Haryana as a whole, 4.56 mm/day was found as a normal annual potential evapotranspiration, likewise seasonal normal were 7.6 mm/day in Kharif, 1.5 mm/day in Rabi, 0.6 mm/day in winter, 5.5 mm/day in pre monsoon, 7.8 mm/day in monsoon and 1.9 mm/day in post monsoon period.
  • Thumbnail Image
    ThesisItemOpen Access
    Study the effect of weather parameter on bacterial blight in cluster bean [Cyamopsis tetragonoloba (L.) Taub.]
    (Chaudhary Charan Singh Haryana Agricultural University, Hisar, 2021-09) Bharti, Rahul Raj; Bharti, Rahul Raj; Khichar, M.L; M.L Khichar, M.L
    Field studies on“Study the effect of weather parameter on bacterial blight in Cluster bean [Cyamopsis tetragonoloba (L.) Taub.]”was conducted at dry land research area of department of Plant Pathology,CCS Haryana Agricultural University, Hisar during Kharif 2020. The main plot treatments consisted of three date of sowing viz., 1st week of July (D1), 2nd week of July (D2) and 4th week of July (D3) and the sub-plot treatments consisted of three varieties viz., HG 365, HG 563, HG 2-20.Nine treatment combinations were tested in randomized block design in three replications. The 1st week of July sown crop had highest agrometeorological indices, followed by 2nd week of July and 4th week of July. All growth parameters, yield and yield attributes were found highest in 1st week of July sown crop. Among different varieties, HG 563 consumed highest heat units, heliothermal units and photothermal units followed by HG 2-20 and HG 365 under different growing environments. Heat use efficiency were highest in variety HG 365.Progression of bacterial blight was found highest in variety HG 365 followed by HG 2-20 and HG 563 in all three date of sowings.Among different sowing dates crop sown on 1st week of July were recorded lowest progression of bacterial blight followed by 2nd week of July and 4th week of July.The correlation analysis were carried out to study the relationship between bacterial blight and microclimate of cluster bean varieties. Temperature minimum, relative humidity evening highly significant negatively correlated in all date of sowings and in all varieties. Relative humidity morning positively correlated in all date of sowings and in all varieties. Maximum AUDPC were recorded in 4th week of July sown crop in all varieties. Minimum AUDPC were recorded in 1st week of July sown crop in all varieties.
  • Thumbnail Image
    ThesisItemOpen Access
    Study on microclimate of cluster bean [Cyamopsis tetragonoloba (L.) Taub.] cultivars under two crop row orientations
    (CCSHAU, Hisar, 2021-07) Yadav, Ankit; Ram Niwas
    The field investigation on “Study on microclimate of cluster bean [Cyamopsis tetragonoloba (L.) Taub.] cultivars under two crop row orientations” was carried out during Kharif season 2020-21 at Research area, Department of Agricultural Meteorology, Research Farm, Chaudhary Charan Singh Haryana Agricultural University, Hisar. The treatment consisted of two crop row orientations D1 (East-West) and D2 (North-South) and three cultivars/varieties V1 (HG 365), V2 (HG563) and V3 (HG 2-20). These eighteen plots were evaluated in factorial randomized bock design with three replications. The North-South crop row orientation had a higher seed yield owing to its greater number of pods/plant as compared to East-West crop row orientation. The cultivar HG 2-20 similarly had a higher seed yield due to more pods/plant. There was no difference between crop row orientations in the occurrence of phenophases but variety HG 2-20 had a longer reproductive phase i.e. it entered flowering stage earlier and matured later. The LAI of cluster bean increased up until around 70 DAS after then started decreasing while dry matter accumulation kept on increasing up until maturity. Both row orientations intercepted through their entire canopy the same amount/percentage of total incident PAR. However, variety HG 2-20 intercepted more par as compared to other varieties. All cultivars and crop row orientations had similar kind of relative humidity and temperature profiles with diurnal variations being lowest at bottom of the canopy and highest at the top of canopy. The top of canopy was much closer to the ambient environment as compared to bottom of the canopy. The correlational analysis of yield attributes and weather parameters and agrometeorological indices showed that negative correlation with temperature especially with night time and relative humidity especially evening RH. However, crops planted in North-South row orientation were less affected. Cluster bean crop was significantly positively correlated with sunshine duration and heat units as well.
  • Thumbnail Image
    ThesisItemOpen Access
    Study of microclimate and radiation interception in Bt cotton under different growing environments
    (CCSHAU, Hisar, 2021-07) Godara, Mohit; Khichar, M.L
    Field experiment on ‘Study of microclimate and radiation interception in Bt cotton under different growing environments’ was carried out at research farm, Department of Agricultural Meteorology, CCS HAU, Hisar during Kharif season 2020. The main plot treatments consisted of three date of sowing viz., 19th of April (D1), 8th of May (D2) and 28th May (D3) and the sub-plot treatments consisted of three spacing viz., 67.5 cm × 60 cm (S1), 100 cm x 45 cm (S2) and 100 cm x 60 cm (S3) replicated three times and tested in split plot design. All growth parameters, growth rates, yield and yield attributes, dry matter accumulation, LAI and plant height were found highest in early sown crop under 19th April (D1). Intercepted Photosynthetically active radiation was highest in narrow plant spacings 67.5 cm x 60 cm and in early sown crop under 19th April (D1). Seed cotton yield was positively correlated with temperature, BSS and agrometeorological indices whereas negatively correlated with relative humidity in three different Dates of sowing. Dry matter accumulation per plant found to be highest in wider plant spacing 100 cm x 60 cm while plant height and LAI were maximum in narrow plant spacing 67.5 cm x 60 cm. Diurnal range of temperature and relative humidity profiles were higher in wider plant spacing 100 cm x 60 cm and in late sown crop under 28th May (D3) sown Bt cotton crop.
  • Thumbnail Image
    ThesisItemOpen Access
    Calibration and validation of CROPGROW -chickpea model under semiarid condition
    (CCSHAU, Hisar, 2021-09) Sharma, Vivek; Raj Singh
    Field experiment entitle “Calibration and validation of CROPGROW-chickpea model under semiarid condition” was conducted during Rabi season 2020-21 at research farm of Department of Agricultural Meteorology, CCS HAU, Hisar (290 10’ N, 750 46’ E and altitude 215.2 m). The experiment consisted of four date of sowings as main plot treatments namely, D1-13th October, D2-1st November, D3-15th November, D4- 2nd November; sub plot treatments comprised of three varieties viz. (V1)- HC 1, (V2)- HC 7 and (V3)- HC 5. The experiment was laid out in split plot design with three replications. Relative humidity and temperature at morning hours was maximum at the bottom of canopy and it decreased towards the top at flowering and pod initiation stage while at maturity stage temperature increased towards the canopy top and relative humidity decreased towards the top of canopy. Accumulated intercepted PAR was maximum for (D1-13th October) and variety HC 7. Yield and yield attributes were highest for (D1- 13th October) and variety HC 7. Plant height was maximum in variety HC 5 and (D1-13th October). Crop growth observations except plant height were highest for (D1-13th October) and HC 7 while plant height was observed maximum in (D1-13th October) and variety HC 5. DSSAT model was simulated and compared with observed values and results have revealed that simulated days to flowering, days to pod initiation, days to physiological maturity and seed yield were in good agreement with observed values. Model overestimated days to flowering, days to pod initiation, days to physiological maturity and underestimated the seed yield and leaf area index. The model can be used satisfactorily for prediction of phenology and seed yield.
  • Thumbnail Image
    ThesisItemOpen Access
    Analysis of agrometeorological aspects of brinjal cultivation
    (CCSHAU, Hisar, 2021-08) Sihag, Prerna; Surender Singh
    A field experiment entitled “Analysis of agrometeorological aspects of Brinjal cultivation” was conducted in the research farm of Department of Vegetable Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar during autumn-winter season of 2020 with the objectives to quantifying various agrometeorological indices for different phenophases and to examine the relationship between weather variables and yield attributes of Brinjal. The experiment was conducted in Factorial Randomized Block Design with four dates of transplanting i.e. July 5th, 15th, 25th and August 4th, 2020), with three varieties viz., Hisar Shymal, BR-112 and HLB-12 replicated thrice . The results showed that the crop transplanted on 15thJuly exhibited higher growth,yield attributes and final yield. The higher yield per plant (1.0 kg) , yield/ ha (271.22q) and biological yield (474.42 q/ha) were observed at maturity in brinjal crop transplanted on 15th July because of enhanced attainment by the yield attributes. The accumulated agrometeorological indices attained by the brinjal crop were 1229⁰C day (GDD), 8216⁰C day hour (HTU) and 16348⁰C day hour (PTU) at 1stpicking of fruits. On the basis of results obtained from the above study, it may be concluded that 15th July found to be most suitable period for transplanting of brinjal seedlings which resulted into maximum growth, yield attributes and yield along with optimum utilization of derived agrometeorological indices viz., thermal units; heliothermal units; photothermal units; hydrothermal units; with optimum use of other relevant derived agrometeorological indices. Among the varieties of brinjal; Hisar Shyamal proved more adaptive and superior in growth, yield attributes and yield utilizing the agrometeorological indices and natural resources with enhanced use efficiency.