Performance of wheat varieties under different spacings of poplar (Populus deltoides Bartr. ex Marsh)

dc.contributor.advisorK.S. Ahlawat
dc.contributor.authorYadav, Sneh
dc.date.accessioned2023-06-15T05:40:27Z
dc.date.available2023-06-15T05:40:27Z
dc.date.issued2022-07
dc.description.abstractThe present investigation entitled “Performance of wheat varieties under different spacings of poplar (Populus deltoides Bartr. ex Marsh)” was carried out at research area of Forestry Department, CCS Haryana Agricultural University, Hisar in an already established poplar plantation (Feb., 2017) at six different spacing viz., 3×3 m,4×3 m,5×3 m,6×3 m,7×3 m and 8×3 m. In the interspaces of above spacing and control (devoid of tree), five wheat varieties viz. WH 1184, HD 3226, HD 3086, DBW 88 and PBW 725 were grown in three replications during Rabi season of 2019-20 and 2020-21. The effect of different spacings of poplar on growth, physiology, yield attributes, yield and nutrient uptake of various wheat varieties were studied. The maximum GBH (73.63 cm), crown spread (6.59 m) in poplar was recorded in 8×3 m but maximum plant height (17.49 m) was observed in 3×3 m spacing. The various growth, physiological and yield attributing parameters of different wheat varieties were observed significantly higher in sole wheat varieties than under different spacing of poplar except chlorophyll content, relative water content, relative stress injury, canopy temperature depression which were observed maximum under 3x3 m spacing of poplar. Maximum average reduction in the grain yield (45.54 and 49.73 %) over control was recorded under 3x3 m spacing followed by 4x3 m (36.65 and 40.88 %), 5x3 m (31.90 and 35.74 %), 6x3 m (27.53 and 30.74 %), 7x3 m (21.98 and 24.78 %) and minimum in 8x3 m (18.39 and 20.49 %) during 2019-20 and 2020-21, respectively. Among different wheat varieties, maximum percent reduction of 47.83 and 51.84 in grain yield was recorded in wheat variety DBW 88 under 3x3 m spacing of poplar and minimum (15.79 and 17.95) in WH 1184 under 8x3 m spacing during 2019-20 and 2020-21, respectively over control. Maximum gross returns, net returns and B:C ratio were recorded in Poplar + WH 1184 based cropping system under 5×3 m spacing indicating that 5x3 m spacing of poplar intercropped with wheat variety WH 1184 is more economically. Soil pH and EC decreased significantly higher under poplar plantation than in sole wheat crop. A significant increase in soil organic carbon, available N, P, K and DTPA extractable micronutrients (Zn, Cu, Mn and Fe) was observed in different soil profile (0-15, 15-30 and 30-45 cm) under poplar plantation than sole crop. The total N, P K and micronutrients uptake by grain and straw was observed maximum in variety WH 1184 and minimum in PBW 725. The moisture content was observed higher under poplar plantation than sole crop in different soil depths under study. Further, the soil moisture content increased with the increase in distance from the tree line. The average per cent light available to understory crops was maximum at 01:00 p.m. in the month of February, 2020 (97.57 %) under 8x3 m and minimum at 07:00 a.m. in the month of November, 2020 (15.99 %) under 3x3 m spacing . The air temperature was observed slightly lesser under poplar plantation than open environment (devoid of trees), however a reverse pattern was observed in relative humidity.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810197604
dc.keywordsPoplar, Wheat, Moisture, Soil properties, Nutrient uptake, Light intensity, Economicsen_US
dc.language.isoEnglishen_US
dc.pages158 + xen_US
dc.publisherCCSHAU Hisaren_US
dc.subForestryen_US
dc.themePerformance of wheat varieties under different spacings of poplar (Populus deltoides Bartr. ex Marsh)en_US
dc.these.typePh.Den_US
dc.titlePerformance of wheat varieties under different spacings of poplar (Populus deltoides Bartr. ex Marsh)en_US
dc.typeThesisen_US
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