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2000 - 200980
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Subject: Agronomy × End date: 2009 ×
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    ThesisItemOpen Access
    Performance of Basmati rice genotypes under optimum and sub optimum levels of nitrogen
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2009-07) Yadav, Parth Brat; Singh, D.K.
    A field experiment was conducted during the Kharif season of 2008 at Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) (29°N latitude, 79.29‟E longitude and 243.8 m altitude) for evaluation of twelve Basmati rice genotypes (IET-19783, IET-19784, IET-22001, IET-22002, IET-22003, IET-22005, IET-22007, IET-22008, Pusa Basmati-1, Taraori Basmati, Pant Sudandha Dhan-17 and Pusa Sugandha-4) under optimum and sub optimum levels of nitrogen (50, 100 and 150 kg N/ha). Treatments were tested in Split Plot Design with three replication keeping nitrogen levels in main plots and genotypes in sub plots. Different levels of nitrogen did not influence the grain yield significantly while straw yield and total biological yield was significantly affected. Application of nitrogen at 50 kg N ha-1, resulted significantly higher grain: straw ratio, harvest index, nitrogen use efficiency, hulling recovery per cent and milling recovery per cent. Number of shoots per m2, dry matter accumulation, sterility percentage, total nitrogen uptake, length of kernel, alkali value and head rice recovery per cent were found to be increased significantly up to 150 kg N ha-1. While plant height, developmental stages (days taken to 50% flowering, maturity & ripening period), grain yield, total spikelets per m2, number of filled spikelets per panicle, grain weight per panicle, 1000 grain weight, nitrogen content in grain, breadth of kernel, length: breadth ratio and aroma were not affected by levels of nitrogen. The Basmati rice genotype IET-22002 produced highest grain yield, which was significantly higher over all other genotypes. This genotype also recorded higher grain: straw ratio, harvest index, nitrogen content in grain, total nitrogen uptake, nitrogen use efficiency and most of the quality parameters (kernel length, length: breadth ratio, milling recovery percentage and hulling recovery percentage). This genotype produced lower sterility per cent. It is concluded that application of nitrogen at lower dose is essential for obtaining higher yield of Basmati rice as most of the parameters of growth, development and quality were not responding to higher dose of nitrogen. The Basmati rice genotype IET-22002 was superior to all tested genotypes.
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    ThesisItemOpen Access
    Genotypic response to system of rice intensification
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2009-12) Kalika, Pratap Singh; Bisht, P.S.
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    ThesisItemOpen Access
    Studies on compatibility of zinc application with sources and levels of phosphorus in sugarcane
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-08) Rajesh, A.; Saini, S.K.
    A field experiment entitled “Studies on compatibility of zinc application with sources and levels of phosphorus in sugar cane” was conducted at the Crop Research Center of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar during 2004-05. The experiment consisted of two sources of phosphorus (SSP and DAP), three levels of phosphorus (40, 60 and 80 Kg P2O5 ha-1) and three levels of zinc sulphate (20, 30 and 40 Kg ZnSO4 ha-1). The treatments were tested in split plot design with three replications; keeping combinations of sources and levels of phosphorus in main plots and levels of zinc sulphate in sub plot. The variations in different growth, quality and yield parameters were not significantly affected with different sources of phosphorus. However, crop fertilized with 80 Kg P2O5 ha-1 recorded significantly higher germination percentage; shoot population and growth parameters like shoot height, number of physiologically active leaves, cane diameter and dry matter accumulation. All the yield attributing characters viz. number of millable canes, average cane weight, cane diameter, cane length and number of internodes per cane and cane, trash and green tops yield were significantly higher in this treatment. Quality parameters like juice brix, purity, available sugar and commercial cane sugar yield were also of significantly higher values with the application of 80 Kg P2O5 ha-1. Application of 40 Kg ZnSO4 ha-1 significantly improved shoot population and growth parameters except cane germination. Crop fertilized with 40 Kg ZnSO4 ha-1 exhibited significantly higher yield attributing characters and cane, trash and green top yield over lower levels of zinc sulphate. Juice quality and commercial cane sugar yield also improved due to zinc application.
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    ThesisItemOpen Access
    Effect of potassium on wheat in Uttaranchal
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-06) Gupta, Dharmendra Prasad; Anand Prakash
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    ThesisItemOpen Access
    Response of new wheat genotype at different dates of sowing under late sown irrigated conditions
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-07) Yadav, Sumit Kumar; Misra, R.D.
    A field experiment was conducted in D3 plot of the Crop Research Centre, G.B. Pant Univ. of Agric. & Tech., Pantnagar during rabi season of 2004-2005 to study the effect of wheat genotypes, dates of sowing on growth, development, yield nutrient uptake and grain quality. The soil of the experiment plot was silty loam in texture with higher organic matter. Neutral in reaction, high available phosphorus and medium in available potassium content. The experiment was laid out in split plot design with three replication. Keeping two dates of sowing in main plot (December 15, 2004 (D1) and January 3, 2005 (D2) and four genotype of wheat DBW-16 (V1), PBW-373 (V2), UP-2425 (V3), and Raj-3765 (V4) in sub plots.December 15 sown crop resulted higher germination at 15 DAS, taller plants at most of the stages, significantly higher number of shoots, maximum total dry matte accumulation at various stages of crop growth were obtained. Days taken to 50 per cent heading and days taken to maturity were significantly affected by dates of sowing. Higher grain yield and nutrient uptake were recorded in December 15 sown crop. Protein content was also higher in December 15 sown crop than January 3. Among genotype DBW-16 gave significantly higher grain yield than all other genotypes reduction in grain yield (19.4) and straw yield (21.7%) were recorded in very late sown crop (January 3) in comparison to December 15 sown crop.
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    ThesisItemOpen Access
    Effect of sowing dates on growth, grain yield and forage quality of oat (Avena sativa L.) varieties
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2005-09) Roy, Debajyoti; Verma, S.S.
    The present investigation entitled “EFFECT OF SOWING DATES ON GROWTH, GRAIN YIELD AND FORAGE QUALITY OF OAT (Avena sativa L.) VARIETIES” was conducted at the Instructional Dairy Farm, Nagla of the Govind Ballabh Pant University of Agriculture & Technology, Pantnagar, U.S. Nagar (Uttaranchal) during rabi season of 2004-05. The soil of experimental field was sandy loam in texture with high organic carbon (1.23%), medium in phosphorus (46.2 kg ha-1 P2O5) and potash (278.0 kg ha-1 K2O). The experiment was laid out in split plot design with four replication. Treatments consisted of four sowing dates (25th October, 8th November, 23rd November and 8th December) in main plots and four varieties (UPO-212, UPO-94, OS-6 and JHO-822) in sub-plots. Among varieties, UPO-212 produced higher grain yield (22.02 q ha-1), green forage yield (210.55 q ha-1) as well as dry matter yield (226.40 q ha-1) biological yield (219.67 q ha-1) and crude protein yield (11.47 q ha-1) than other varieties. In respect of forage quality viz crude protein content, digestibility, dry matter content, leaf : stem ratio, UPO-94 was better as compared to other vareities. In case of sowing dates, 8th November sowing produced higher grain yield, green forage yield, dry matter yield, straw yield, biological yield as well as crude protein yield and digestible dry matter yield than other sowing dates. It also had higher forage quality contents such as crude protein, leaf : stem ratio and leaf area index as compared to other sowing dates. Thus, it may be concluded that oat variety, UPO-212 might be sown on 8th November to produce maximum grain yield as well as straw yield, crude protein yield and digestible dry matter yield under tarai conditions of northern India.
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    ThesisItemOpen Access
    Evaluation of sustainable production model of wheat yield in rice-wheat cropping system
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-04) John Anurag, P.; Singh, R.K.
    To evaluate the wheat yield in different crop models due to integrated affect of different nitrogen levels, weed flora and soil physical and chemical properties, an experiment in randomized block design was laid out during kharif season of 2002-2003 at Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar. Four models viz., recommended dose of NPK and Zn (150, 60, 40 and 25 kg ha-1), nitrogen 180 kg ha-1 along with green manure of Sesbania and recommended dose of P, K and Zn, 10 per cent extra of recommended dose of fertilizer and recommended dose of NPK and Zn with direct seeding of rice followed by zero tillage wheat, were taken into consideration for their comparison. Models were considered as treatments and were replicated twenty one times. Wheat variety PBW-243 was sown on 12th of November using 100 kg seed ha-1. Experimental soil was silty clay loam in texture. Model subjected to higher fertilizer doses showed significantly higher yield and yield attributing characters. Green manuring in the previous rice crop was found to have a positive residual effect on succeeding wheat crop. Yield in recommended dose of fertilizer with conventional tillage, was at par with zero tillage model with recommended package of fertilizer doses. Improved soil physical properties were found due to green manuring, whereas results in this regard can be anticipated in zero tillage in long term. Except available nitrogen, available phosphorus and potassium in soil were found to be highest in green manuring model followed by zero tillage. Fertility status of soil reflected nutrient concentration in straw and grain of wheat. Thus, green manuring of Sesbania before rice crop can be regarded as the best model among the four models considered, followed by zero tillage after direct seeded rice in terms of wheat yield.
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    ThesisItemOpen Access
    Studies on nitrogen management in summer rice (Oryza sativa L.) under different crop establishment methods
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-08) Singh, Sushil Kumar; Singh, Satya Pal
    A field experiment was conducted during spring season, 2003 at Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar , Uttaranchal. The experiment was laid-out in split plot design, keeping crop establishment methods (Transplanted on flat beds, transplanted on raised bed method) in main plots and nitrogen management practices i.e. control, recommended nitrogen, farmer‟s fertilizer practices, SPAD 35-37, SPAD 37-39, LCC 3.5, LCC 4.0, LCC 4.5 in sub plots with three replication. The transplanting crop on raised beds gave higher grain (70.0 q ha-1) and straw (98.9 q ha-1) yields than transplanted on flat beds. The nitrogen management practices based on LCC 4.0 shade i.e. 180 kg N ha-1 recorded significantly higher grain yield (84.9 q ha-1) followed by LCC 4.5 (77.5 q ha-1) and SPAD 37-39 (74.0 q ha-1) which were 28.44, 17.24 and 11.95 per cent higher, respectively over recommended dose of 150 kg N ha-1 and 31.84, 24.0 and 18.40 per cent higher over 120 kg N ha-1 as farmer‟s practice. The straw yield was found maximum in case of LCC 4.5 (111.9 q ha-1) where total 210 kg N ha-1 was applied followed by SPAD 37-39 (107.6 q ha-1) and LCC 3.5 (106.2 q ha-1). Crop establishment methods influenced number of grains panicle-1 significantly. The number of grains panicle-1 were higher in transplanted crop on raised beds than crop transplanted on flat beds. The number of spikelets and grains panicle-1 were maximum in SPAD 37-39 based nitrogen management practice whereas number of panicle m-2 recorded higher in LCC 4.5 nitrogen management practice. Total nitrogen uptake and nitrogen use efficiency were also recorded higher under raised bed method of crop transplanting while among the nitrogen management practices the total nitrogen uptake was found higher in LCC 4.5 practice followed by LCC 4.0 practice and nitrogen use efficiency was higher under SPAD 37-39 and LCC 4.0, where total 150-180 N ha-1 was applied, respectively. Thus, transplanting of summer rice crop on raised beds fertilized with 150 to 180 kg N ha-1 and splitting based on LCC 4.0 or SPAD 37-39 reading with 30 kg N ha-1 as basal dose had significant beneficial effect on yield and yield attributes of rice with better nitrogen use efficiency.
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    ThesisItemOpen Access
    Effect of zinc levels on growth and yield of forage sorghum [Sorghum bicolor (L.) Moench]
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-07) Ghanghas, Vikas; Verma, Surendra Singh
    A field experiment was conducted during the Kharif season of 2003, at Instructional Dairy Farm of G.B. Pant University of Agriculture and Technology , Pantnagar to study the effect of various levels of zinc (0, 5, 10 and 15 kg ha-1) and response of fodder sorghum varieties (Pant Chari –5, Pant Chari-4 and Rio) with respect to grain and stover yield, yield attributes quality and uptake of zinc. The soil of the experimental site was silty clay loam in texture having organic carbon (1.18 per cent), total nitrogen (0.17 per cent), available phosphorus (31.2 kg ha-1) and available potash (323.04 kg ha-1) with pH 7.2. Treatments consisted of three varieties and with four levels of zinc, with varieties in main plot and zinc levels in sub plots with four replications and experiment was laid out in split plot design. Among the verities, Pant Chari-5 recorded 10.33 and 22.05 per cent higher grain yield over Pant Chari-4 and Rio, respectively. Increase in green fodder yield was 10.74 and 16.73 per cent higher over Pant Chari-4 and Rio respectively. Zinc application @ 5 kg ha-1 was found significantly superior over 0, 10 and 15 kg ha-1 with respect to grain and stover yield, yield attributes and quality of fodder. Zinc application also increased the uptake of zinc upto the rate of 15 kg Zn ha-1. Similar trend was observed in digestibility of dry matter with zinc application upto 5 kg ha-1. Thus, it may be concluded that sorghum cv Pant Chari-5 along with 5 kg Zn ha-1 was indicative of the requirement of variety in Tarai conditions of Northern India. Stover quality was also superior at foresaid dose of zinc.