scholarly journals Performance evaluation of potato clones for the central Terai Region of Nepal

2021 ◽  
Vol 4 (2) ◽  
pp. 155-166
Author(s):  
Tek Prasad Gotame ◽  
Sujata Poudel ◽  
Bihani Thapa ◽  
Janaki Datta Neupane
Keyword(s):  
Tuber Yield ◽  
Agricultural Research ◽  
Potato Production ◽  
Research Field ◽  
Research Station ◽  
Check Variety ◽  
Seed System ◽  
Series Of Experiments ◽  
Evaluation Trial ◽  
Food And Nutritional Security

A series of experiments were carried out to evaluate the performance of exotic potato clones including PRP lines at research field of Regional Agricultural Research Station (RARS), Parwanipur, Bara, Nepal during the winter seasons of 2017 and 2018. Thirty-nine potato clones were evaluated in initial evaluation trial and eleven clones were evaluated in coordinated varietal trial with check varieties Khumal Ujjwal and Kufri Jyoti. From the initial varietal trial in 2017, the highest tuber yield (21.54 mt/ha) was found in CIP389660.9 followed by CIP391046.14 (21.38 mt/ha). In 2018, the highest tuber yield (29.72 mt/ha) was produced in CIP392759.1 followed by CIP393085.5 (26.92 mt/ha) and CIP391046.14 (26.64 mt/ha). In 2018, the tuber yield was the highest (26.12 mt/ha) in PRP 266265.15 followed by CIP 393371.159 (24.79 mt/ha). In coordinated varietal trial carried out in 2017/18, the highest tuber yield was noted in CIP394600.52 (42.65 mt/ha) followed by CIP395443.103 (30.83 mt/ha) and CIP395445.16 (24.43 mt/ha) respectively. Whereas in 2018/19, the highest yield was produced by PRP266265.15 (26.12 mt/ha) followed by CIP393371.159 (24.79 mt/ha) and CIP 396012.266 (22.66 mt/ha) respectively. In RARS, Parwanipur conditions, CIP 394600.52, CIP 395443.103, CIP 395445.16 and CIP 304394.56 along with PRP 266265.15 were found to be superior to standard check variety. These potential genotypes need to be further verified in farmers field in additional districts of central Terai region before notifying in the national seed system. Adoption of these clones as variety may increase the potato production and improve the food, and nutritional security in the central Terai region of Nepal.

scholarly journals Performance evaluation of early maize genotypes in far western hills of Nepal

2015 ◽  
Vol 1 (1) ◽  
pp. 106-111
Author(s):  
Hari Kumar Prasai ◽  
Ujjawal Kumar Singh Kushwaha ◽  
Bishnu Prasad Joshi ◽  
Jiban Shrestha
Keyword(s):  
Performance Evaluation ◽  
Statistical Analysis ◽  
Research And Development ◽  
Agricultural Research ◽  
Block Design ◽  
Initial Evaluation ◽  
Research Station ◽  
Maize Genotypes ◽  
Randomized Complete Block Design ◽  
Evaluation Trial

Initial evaluation trial of maize (early) genotypes was carried out at Regional Agricultural Research Station, Doti, Nepal in 2013 and 2014. Total fourteen and fifteen genotypes of early maize were included in initial evaluation experiment of the year 2013 and 2014 respectively. The experiment was laid out in randomized complete block design (RCBD) with three replications in each year. Out of the tested genotypes, SO3TEY/LN, ZM 423 and SO3TEY-FM (ER) identified as promising from statistical analysis over year. All the tested characters were found statistically significant. Similarly, the coordinated varietal trial of maize (early) was also carried out in the same station at 2013 and 2014. Total fourteen genotypes in 2013 and fifteen genotypes in 2015 of maize (early) were included in the experiment. The RCB design was applied and the experiment was replicated three times in every year. ZM 627 and ZM 621/Pool -15 genotypes identified as superior next to Arun-2 from the analysis of two year data. All the tested traits were found statistically significant in over year analysis.Journal of Maize Research and Development (2015) 1(1):106-111DOI: http://dx.doi.org/10.5281/zenodo.34291

scholarly journals Hybrid maize and sweet potato intercropping: a technology to increase productivity and profitability for poor hill farmers in Bangladesh

2015 ◽  
Vol 12 (2) ◽  
pp. 101-111 ◽  
Author(s):  
MN Islam ◽  
M Akhteruzzaman ◽  
MS Alom ◽  
M Salim
Keyword(s):  
Sweet Potato ◽  
Tuber Yield ◽  
Agricultural Research ◽  
Light Availability ◽  
Maize Yield ◽  
Cost Ratio ◽  
Research Station ◽  
Gross Margin ◽  
Canopy Development ◽  
Equivalent Yield

The experiment was conducted at the Hill Agricultural Research Station, Khagrachari during two winter seasons of 2010-11 and 2011-12 to find out suitable planting system of the component crops for increasing productivity and profitibility for hill farmers of Bangladesh. Three intercrop combinations viz., (i) maize paired row + 2 rows sweet potato, (ii) maize normal row +1 row sweet potato and (iii) sweet potato normal row + 1 row maize were evaluated against their respective sole crops. In all combinations, light availability was more at early growth stage and reduced gradually with the advancement of canopy development of maize. Light availability was minimum at 100 days after emergence and thereafter slightly increased in three intercrop combinations. Among intercrop combinations, light availability to sweet potato canopy was more in maize paired row + 2 rows sweet potato combination through out the crop period which enhance tuber formation, tuber bulging and tuber yield. Contrary, sweet potato vines provide a mulch cover for maize which preserve soil moisture and reduce weed infestation producing higher yield and yield components of maize. Maize yield (cob yield: 19.82 t ha-1, grain yield: 8.98 t ha-1), tuber yield of sweet potato (17.11 t ha-1) and maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination. Similarly, the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination. The results revealed that maize paired row + 2 rows sweet DOI: http://dx.doi.org/10.3329/sja.v12i2.21922 SAARC J. Agri., 12(2): 101-111 (2014)

scholarly journals Fertilizer responsiveness of short duration improved finger millet genotypes to different levels of NPK fertilizers

2018 ◽  
Author(s):  
U. Triveni ◽  
Y. Sandhya Rani ◽  
T.S. S.K. Patro ◽  
N. Anuradha ◽  
M. Divya
Keyword(s):  
Grain Yield ◽  
Finger Millet ◽  
Agricultural Research ◽  
Growth And Yield ◽  
Research Station ◽  
Npk Fertilizers ◽  
Yield Increase ◽  
Check Variety ◽  
Different Levels ◽  
Plot Design

A field experiment was carried out at Agricultural Research Station, Vizianagaram, during Kharif, 2016 under rainfed conditions to know the fertilizer responsiveness of promising finger millet varieties to graded doses of NPK fertilizers. Twenty treatment combinations were tested in split- plot design with three replications. Experimental results revealed that with 125% RDF grain yield increase was 10%, 27% and 48% higher than 100% RDF, 75% RDF and 50% RDF respectively. Among the finger millet genotypes, grain yield of VL-379(2037 kg/ha) and VL-352(1989 kg/ha) was significantly high and was at par with national check variety VR-708(1959 kg/ha). Both the test varieties (VL-379 and VL-352) were far superior to local check variety in terms of growth and yield characteristics. Higher net monetary returns and B:C ratio were obtained with VL-379, followed by VR-708 and VL-352 at 125% RDF.

scholarly journals Effect of conservation agriculture on grain yield and income of maize under maize based cropping system in far western Nepal

2018 ◽  
Vol 10 (4) ◽  
pp. 320-332
Author(s):  
H.K. Prasai ◽  
S.K. Sah ◽  
A.K. Gautam ◽  
A.P. Regmi
Keyword(s):  
Grain Yield ◽  
Agricultural Research ◽  
Cropping Systems ◽  
Cropping System ◽  
Conservation Agriculture ◽  
Research Field ◽  
Research Station ◽  
Net Benefit ◽  
Maize Varieties ◽  
Hybrid Maize

Abstract. The adoption of Conservation agriculture (CA) contributes to sustainable production and its advantages include lower inputs and stable yields. This study was conducted in the research field of Regional Agricultural Research Station, Bhagetada, Dipayal, Doti during 2014 and 2015 to identify the effect of CA on grain yield and income of maize in Maize based cropping system. Both conservation and conventional agricultural (ConvA) practices were evaluated on two maize based cropping systems namely maize-wheat-mungbean (M-W-MB) and maize-lentil-mungbean (M-L-MB). For this purpose two maize varieties namely Raj Kumar and Arun-2 were used. The average productivity of maize under M-L-MB cropping system was 1.6% higher (5.75 t/ha) than M-W-MB cropping system (5.66 t/ha). The average grain yield of maize under CA was 16.7% higher (6.15 t/ha) than ConvA (5.27 t/ha). Rajkumar produced 43% higher average grain yield (6.73 t/ha) than Arun-2 variety (4.69 t/ha). The average net benefit was slightly higher (US$ 597.33/ha) under M-L-MB cropping system than M-W-MB cropping system (US$ 573.89/ha). Similarly, the average net benefit from CA was 102% higher (US$ 783.67/ha) than ConvA (US$ 386.79/ha). Rajkumar variety gave 127% higher average net benefit (US$ 813.49/ha) than Arun-2 (US$ 357.81/ha). The average benefit - cost (B:C) ratio of M-L-MB cropping system was slightly higher (1.72) than the average B:C ratio of M-W-MB cropping system (1.70). The average B:C ratio of CA was 42% higher (2.01) than ConvA (1.41). The average B:C ratio of Rajkumar variety was found 33% higher (1.95) than Arun-2 (1.46). The higher grain yield, net profit and B:C ratio were found in CA practices under M-L-MB cropping system and Rajkumar variety. This study suggests that hybrid maize planting and the adoption of M-L-MB cropping system should be used to increase grain yield and economic performance under CA practices.

scholarly journals Intercropping of Cabbage with Maize

2020 ◽  
Vol 22 (1) ◽  
pp. 115-120
Author(s):  
MM Khanum ◽  
MM Bazzaz ◽  
B Ahmed ◽  
MS Huda ◽  
MA Hossain
Keyword(s):  
Agricultural Research ◽  
Maize Yield ◽  
Research Field ◽  
Research Station ◽  
Rabi Season ◽  
Gross Margin ◽  
Economic Return ◽  
Total Productivity ◽  
Maize Grain ◽  
Equivalent Yield

The experiment was carried out at the research field of Agricultural Research Station, Rajbari, Dinajpur (Latitude: 25.63544, Longitude: 88.65144) during rabi season of 2016-2017 and 2017-18 under AEZ-1 to find out the suitable crop combination for higher productivity and economic return. Five different treatments were employed in the study viz. T1= Sole maize (60cm x×20cm), T2= Maize planting (75cm×x 25cm) + 1 row cabbage (50cm×50cm) T3= Maize paired row (150cm/37.5cm x 25cm) + 2 rows cabbage (50cm x×50cm) T4=Maize planting (60cm x×20cm )+1 row cabbage (60cm x×50cm), T5= Maize paired row (120cm/30cm× x 20cm) + 2 rows cabbage (60cm x 50cm) were evaluated. Maize grain yield in intercropped combination varied from 6.60-9.23 t ha-1. But the highest maize yield was recorded in Maize planting (60cm x 20cm) + 1 row cabbage (60cm x 50cm) followed by that in maize paired row (150/37.5cm × 25cm) +2 rows cabbage (50cm x×50cm), while the highest cabbage yield was recorded in maize planting (60cm x 20cm) + 1 row cabbage(60cm x 50cm) between maize. The highest maize equivalent yield was also obtained in maize planting (60cm x 20cm) + 1 row cabbage (60cm x 50cm) followed by that in maize paired row (150/37.5cm x 25cm) + 2 rows cabbage (50cm x 50cm). The highest gross return, gross margin and BCR were obtained in maize planting (60cm × 20cm) + 1 row cabbage (60cm x 50cm) followed by that in maize paired row (150/37.5cm x 25cm) +2 rows cabbage(50cm x 50cm) and the lowest in sole sowing of maize. The overall results indicated that among the intercrop combinations maize planting (60cm x 20cm) + 1 row cabbage (60cm x 50cm) and maize paired row (150/37.5cm x 25cm) +2 rows cabbage (50cm x 50cm) were found suitable for total productivity and economic return of the system. Bangladesh Agron. J. 2019, 22(1): 115-120

scholarly journals Effect of Hydropriming and soil moisture regimes on yield and yield components of maize (Zea mays L.)

2015 ◽  
Vol 39 (3) ◽  
pp. 505-513
Author(s):  
KU Ahammad ◽  
MM Rahman ◽  
MAM Molla ◽  
MG Azam
Keyword(s):  
Soil Moisture ◽  
Zea Mays L ◽  
Agricultural Research ◽  
Field Capacity ◽  
Research Field ◽  
Research Station ◽  
Maize Seeds ◽  
Moisture Regimes ◽  
Days To Maturity ◽  
Wet Condition

The experiment was conducted at the research field of Regional Agricultural Research Station, Jessore during two consecutive rabi seasons of 2008-2009 and 2009-2010 to find out the effect of hydropriming on the performance of maize seeds under variable soil moisture regimes. The treatments of the experiment were two priming methods viz., i) Hydropriming, ii) Non-priming and four moisture regimes viz., i) Wet condition, ii) Field capacity, iii) 75% of field capacity, and iv) 50% of field capacity. Results showed that yield and yield contributing characters (plant population/m2, number of cobs/m2, length of cob, diameter of cob, 100-grain weight) were influenced significantly by hydropriming. Yield and yield contributing characters were highest when hydroprimed seeds were sown at field capacity whereas it was the lowest at 75% of field capacity from non- primed seeds. Days to tasseling, days to silking, and days to maturity were reduced when hydroprimed seeds were sown at field capacity. At 50% of field capacity, no germination was occurred. DOI: http://dx.doi.org/10.3329/bjar.v39i3.21993 Bangladesh J. Agril. Res. 39(3): 505-513, September 2014

scholarly journals Evaluation of Yield and Yield Components of Eggplant (Solanum melongena L.) Genotypes in the Terai Region of Nepal

2020 ◽  
Vol 9 (2) ◽  
pp. 67-80
Author(s):  
Tek Prasad Gotame ◽  
Sujata Poudel ◽  
Surendra Lal Shrestha ◽  
Jiban Shrestha
Keyword(s):  
Yield Components ◽  
Agricultural Research ◽  
Fruit Size ◽  
Solanum Melongena ◽  
Research Field ◽  
Research Station ◽  
Marketable Yield ◽  
Resistant Varieties ◽  
Yield And Yield Components ◽  
Fruit Borer

The productivity of eggplant in Nepal is very low due to lack of high yielding, disease and pests resistant varieties. Eight eggplant genotypes [Parwanipur Selection -1 (PS-1), Pusa Purple Long (PPL), Pokhara Lurki, Lalgulab, Pusa Kranti, Arka Keshav, HRDBRI-012 and HRDBRI-013] were evaluated at on-station research field of Regional Agricultural Research Station, Parwanipur, Bara, and PS -1, PPL, Pokhara Lurki, Lalgulab, Pusa Kranti, and Arka Keshav were evaluated at farmers’ field, Bara and Parsa  districts from 2018 to 2019. Results of the on-station experiment showed that genotype PS-1 was the earliest maturing genotype and was harvested at 56 days after transplanting. The number of fruits per plot (9 m2 area) was 189 in Arka Keshav followed by HRDBRI012 (180) and PS-1 (179). The number of marketable fruits per plot (9 m2)  was highest in Lalgulab (166) followed by PS-1 (152). The biggest fruit size was recorded in PS-1 (130 g) followed by Pusa Kranti (121 g) and PPL (108 g). The fruit yield was recorded the highest in PS-1 (25.8 mt/ha). The genotype PS-1 was found more resistant to Fusarium wilt and shoot and fruit borer  followed by PPL. In farmers field, the highest marketable fruits per plot were produced from PPL followed by Pusa Kranti and PS-1. Similarly, the highest yield and marketable yield were also recorded in PS-1 followed by Pusa Kranti. The genotypes PS-1 and PPL were superior in terms of yield and resistance to disease and pests. Therefore, they could be a promising genotypes for central Terai region of Nepal.

scholarly journals Heritability and Genetic Advance Estimates from the Parental Lines of Hybrid Maize (Zea Mays L.)

2021 ◽  
Vol 12 (1-2) ◽  
pp. 33-36
Author(s):  
T Biswas ◽  
MS Islam ◽  
NJ Methela
Keyword(s):  
Coefficient Of Variation ◽  
Agricultural Research ◽  
Block Design ◽  
Kernel Weight ◽  
Research Field ◽  
Parental Line ◽  
Research Station ◽  
Genetic Advance ◽  
Hybrid Maize ◽  
Number Of Seeds

Twenty-two genotypes of maize parental line were grown during 2017-2018 at the Research field of Plant Breeding Division, Regional Agricultural Research Station (RARS), Bangladesh Agricultural Research Institute (BARI), Rahmatpur, Barisal, Bangladesh. The experiment was laid out in randomized complete block design with three replications. Heritabilty, coefficients of variability and genetic advance values were computed for days to tasseling, days to silking, days to maturity, plant height (cm), ear height (cm), cob length (cm) and diameter (cm), number of seed rows per cob, number of seeds per row, number of seeds per cob, thousand grain weight (g) and yield (g/plant). Among all the traits higher phenotypic coefficient of variation (44.53) and genotypic coefficient of variation (44.18) were observed for yield/plant. The uppermost heritability was observed in case of yield per plant (98.41) followed by 1000 seed weight (96.91). Genetic advance was highest for seeds/cob (197.87) followed by 1000-kernel weight (176.86).Greater magnitude of heritability coupled with higher genetic advance in characters under study provided the evidence that these plant parameters were under the control of additive genetic effects. Indicating that selection should lead to a fast genetic improvement of the material. Environ. Sci. & Natural Resources, 12(1&2): 33-36, 2019

scholarly journals EVALUATION OF NEW PROMISING RICE HYBRID AND ITS PARENTAL LINES FOR FLORAL, AGRONOMIC TRAITS AND GENETIC PURITY ASSESSMENT

2019 ◽  
Vol 56 (03) ◽  
pp. 567-576
Author(s):  
Galal Anis
Keyword(s):  
Grain Quality ◽  
Seed Quality ◽  
Hybrid Rice ◽  
Agricultural Research ◽  
Floral Traits ◽  
Research Station ◽  
Genetic Purity ◽  
Cms Line ◽  
Check Variety ◽  
Parental Lines

Development of new rice hybrids with high-yielding and superior in grain quality is the most important goal to enhance food security as well as to achieve consumer requirements. High seed costs and poor grain quality are the major limiting factors for adoption of hybrid rice. A practical way to improve hybrid seed quality and to increase production is possible to increase the seed setting rate through improving the floral traits for parental lines. In the context, the study was conducted at the Rice Farm and Laboratories of Sakha Agricultural Research Station, Sakha, Kafr El-Sheikh, Egypt in consecutive three rice growing seasons in 2015, 2016 and 2017. The study focused mainly on characterization of the new promising hybrid ‘G46A/GZ9399R’ and its parental lines. The cytoplasmic male sterile (CMS) line and restorer line were evaluated for twenty-three floral traits that influence outcrossing rate in hybrid rice under two seasons and there was a marked stability for most of these traits. As compared with commercial check variety ‘Giza 178’, the new promising hybrid ‘G46A/GZ9399R’ showed its superiority in all agro-morphological traits except plant height. This hybrid was very early, adapted widely and recorded 20.19% more yield than commercial check variety ‘Giza 178’. Instead, this hybrid produced superiority in all grain quality properties except grain length was medium grain and amylose content was equal for both studied genotypes compared to the check variety. In parallel, the assessment of genetic purity established the SSR markers RM154, RM331, and RM297, amplified alleles specific to differentiate parental lines of hybrid ‘G46A/GZ9399R’.

scholarly journals Intercropping French Bean with Brinjal at Varying Planting System

2019 ◽  
Vol 21 (2) ◽  
pp. 1-6
Author(s):  
JA Chowdhury ◽  
Md Mahfuz Bazzaz ◽  
SS Kakon ◽  
AA Begum ◽  
Most Mahbuba Khanum
Keyword(s):  
Agricultural Research ◽  
French Bean ◽  
Research Field ◽  
Research Station ◽  
Gross Margin ◽  
Economic Return ◽  
Land Equivalent Ratio ◽  
Sole Cropping ◽  
Bean Yield ◽  
Total Productivity

The experiment was carried out at the research field of Agricultural Research Station, Rajbari, Dinajpur during rabi season of 2014-15 and 2015-16 to find out suitable crop combination for higher productivity and economic return. Six different treatments viz. T1 = Sole brinjal (75 cm x 60 cm), T2 = Sole french bean (30 cm x 10 cm), T3 = Brinjal normal row (100%) + 1 line french bean between brinjal (33%), T4 = Brinjal normal row (100%) + 2 lines french bean between brinjal (66%), T5 = Brinjal paired row (100%) + 3 lines french bean between brinjal (40%) and T6 = Brinjal paired row (100%) + 4 lines french bean between brinjal (53%) were evaluated. The results revealed that the highest mean fruit yield of brinjal (44.26 t ha-1) and french bean (20.96 t ha-1) was obtained in sole cropping of component crops. Under intercropping, the highest brinjal yield (38.61 t ha-1) was recorded in brinjal normal row + 1 line french bean between brinjal, while, the highest french bean yield (16.06 t ha-1)  in brinjal normal row + 2 lines french bean between brinjal. The highest mean brinjal equivalent yield (58.72 t ha-1) and land equivalent ratio (1.50) was also obtained in brinjal normal row + 2 lines french bean between brinjal. The highest gross return (Tk. 4,69,760 ha-1), gross margin (Tk. 3,66,440 ha-1), and BCR (4.54) were obtained in brinjal normal row + 2 lines french bean between brinjal and the lowest in sole french bean. The overall results indicated that among the intercrop combinations brinjal normal row + 2 lines french bean between brinjal was found suitable for total productivity and economic return of the system. Bangladesh Agron. J. 2018, 21(2): 1-6

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