Effect of Plant Geometry on Different Rapeseed Varieties under Rainfed Upland Condition in Nepal

2021 ◽  
Vol 9 (2) ◽  
pp. 113-121
Author(s):  
Susmita Adhikari ◽  
Binod Thapa ◽  
Laxmi Poudel ◽  
Prativa Paudel ◽  
Ujjwal Acharya ◽  
...  

The field experiment was carried out during winter of 2018/19 with two varieties (Unnati and Surkhet-Local) and three plant geometry (15cm × 10 cm, 30cm × 10 cm, 45cm × 10cm) in Randomized complete block design (RCBD) with four replications. Statistically there was no difference between two varieties while differences were found on different spacing and interaction between variety and spacing on final seed yield. High significant differences on seed yield was due to spacing and yield of rapeseed were higher at the 30 cm inter row spacing as compared to the 15 cm and 45 cm inter row spacing. Statistically significant effect was found on mean values of seed yield for interaction which showed that Unnati cultivar in 30 cm x 10 cm plant geometry had the highest seed yield (969.86 kg/ha) followed by Surkhet-local with  spacing of 15 cm × 10 cm (843.75 kg/ha) and 30 cm × 10 cm (823.76 kg/ha). Yield of these varieties decreased as spacing is increased, thus sowing of Unnati should be done at cropping geometry of 30 cm × 10 cm and for Surkhet-local it should not be done beyond 30 cm inter row spacing to get the maximum potential yield. Int. J. Appl. Sci. Biotechnol. Vol 9(2): 113-121.

Author(s):  
Saif Ahmed Rawdhan

Field experiment has been conducted during autumn season of 2011-2012 at the experimental farm, Department of Agriculture Machines Science, Collage of Agriculture –University of Baghdad. A field study has been carried out to determine the effect of pulverization tools and tractor speed on yield of barley crops for optimum production and some machinery group. Pulverization tools treatments are (rotivator, disk harrow and spring cultivator). Tractor speed is (4 and 5 km hr-1). Randomized complete block design with three replications and LSD (0.05) is used to compare the means of treatments at 0.05.The experiment results show the following: The treatment of pulverization using rotivator+5 km hr-1 tractor speed achieves higher practicalproductivity with mean recorded 0.99 ha hr-1, and lower fuel consumption combined and slippage percentage with mean 28.31 and 7.77% respectively as  compared with disk harrow and spring cultivator The mean values of the pulverization tools and tractor speed show that rotivator+5 km hr-1 tractor speed gives heights value biological yield (t/ha) and seed yield (t/ha) recorder 18.23 and 5.85 Ton ha-1.


2017 ◽  
Vol 20 (1) ◽  
pp. 7-12
Author(s):  
MI Nazrul

A field experiment was conducted during rabi and kharif seasons of 2014-15 and 2015-16 to find out suitable linseed and sesame genotypes to fit in the Fallow-Fallow- T. aman rice cropping system under AEZ 20 in Sylhet region of Bangladesh. This experiment was laid out in a randomized complete block design (RCBD) with six dispersed replications. It was revealed that among the different linseed varieties, the genotype Zokiganj-local gave the maximum number (31.40) of capsules plant-1 and 1000-seed weight (4.01g) with the highest seed yield (1003 kg ha-1). Similarly, sesame var. BARI Til-4 provided maximum number of capsules plant-1 (71.33), seeds plant-1 (70.33) and highest 1000-seed weight (3.012g), which resulted the highest seed yield (1150 kg ha-1) yield in arable fallow land of Sylhet region. The lowest seed yield 782 and 840 kg ha-1 of linseed and sesame was produced by the genotypes Patuakhali local and the var. BARI Til-3, respectively.Bangladesh Agron. J. 2017, 20(1): 7-12


Author(s):  
Shifera Kitata ◽  
Tolera Abera ◽  
Bhupesh Nandeshwar

Teff is a major staple cereal crop in Ethiopia. However, its productivity is limited due to lack of appropriate sowing methods and utilization of improper seed rate are among the major once. Hence, a field experiment was conducted in Kiltu Kara District to determine the effects of seed rate and row spacing on yield and yield components of teff. Four levels of seed rates (10, 15, 20 and 25 kg ha-1) and three rows spacing (15, 20 and 25cm) used and combined 12 treatments in total. The experiment was laid out as a randomized complete block design with a factorial arrangement in three replications. All yield components teff were significantly affected by different row spacing except straw yields of teff. The interaction of seed rate and row spacing showed significant difference for yield and yield components of teff. Significantly higher mean values of teff were found by the interaction of 10 kg seed rate ha-1 and 25 cm row spacing. Significantly higher panicle length (36.9), number of tillers per plant (5), number of productive tillers per plant (4) of teff was recorded from interaction of 10 kg seed rate ha-1 and 25 cm row spacing. Higher dry biomass (2591 kg ha-1) and grain yields (1267 kg ha-1) of teff were recorded from interaction of 10 kg seed rate ha-1 and 25 cm row spacing. Mean of highest harvest index (49%) of teff was recorded from interaction of 10 kg seed rate ha-1 and 25cm row spacing as compared to others. Significantly higher straw yields (1488 kg ha-1) was recorded from interaction of 15kg seed rate ha-1 and 20 cm row spacing as compared to other treatment combinations. Therefore, the use of 10 kg seed rate ha-1 together with 25 cm row spacing was the optimum seed rate and row spacing and 10 kg ha-1 was profitable for the production of teff. To make definite conclusion further research for more seasons and location is required to give recommendation for the study area.


2020 ◽  
Vol 2 (4) ◽  
pp. 1-8
Author(s):  
Cosmas Parwada ◽  
Sandra Zhuwao ◽  
Ronald Mandumbu ◽  
Handsen Tibugari ◽  
Savemore Ngirazi

Performance of three newly released short-seasoned (Nsinjiro, Chitala and JL11) were evaluated against old (Nyanda, Illanda and Tern) groundnuts varieties under same agronomic practices. A field experiment laid in a randomized complete block design (RCBD) with three replicates was done. Varieties were evaluated for days to 50% emergence, 50% flowering, days to physiological maturity, pod and seed yield, and shelling percentage. There were no significant difference in the days to 50% emergence among all varieties but significant difference (p ˂ 0.05) were observed on days to 50% flowering. JL11 and Tern took shortest (90 days) and longest (120 days) time to physiological maturity respectively. Chitala had highest (3.804t/ha) and Tern had lowest (3.020t/ha) seed yield. Jl11 had highest (83%) and Nyanda least (68%) shelling percentage. Results showed that the new varieties out-performed the old varieties in all measured parameters. Therefore, resource constrained farmers may safely opt for the new short-seasoned varieties over the old ones.


2019 ◽  
Vol 21 (2) ◽  
pp. 67-71
Author(s):  
MH Hossain ◽  
SK Bhowal ◽  
MMH Bhuiyan ◽  
AKMS Haque ◽  
ASMMR Khan

A field experiment was carried out at Sonapur of Muradnagar upazilla in Cumilla district under the Debidwar MLT (Multi-Location Testing) site during the rabi season of 2013-15. The experiment was conducted in the Old Meghna Estuarine Floodplain (AEZ-19) soil. The experiment was laid out in randomized complete block design (RCBD) with 3 replications.The treatments were: T1= Soil Test Based (STB) Fertilizer dose (FRG 2012), T2= T1+ 15% STB, T3= T1+ 30% STB, T4= 80% STB from inorganic fertilizer + 20% STB from CD/PM, T5= Farmers’ Practice andT6= Control. Among the treatments, T4 gave the maximum seed yield (1385.56 kg ha-1) which was at par with T1, T3 and T2 treatments. The lowest seed yield (450.20 kg ha-1) was obtained from T6 (Control). Bangladesh Agron. J. 2018, 21(2): 67-71


2016 ◽  
pp. 93-103 ◽  
Author(s):  
Igor Balalic ◽  
Jovan Crnobarac ◽  
Vladimir Miklic ◽  
Velimir Radic

The aim of this research was to investigate the effect of stand density on seed yield and protein content in sunflower hybrids. The field experiment was carried out at Rimski Sancevi location. Six NS sunflower hybrids were examined. Five hybrids are confectionery (NS Goliat, NS Slatki, NS Gricko, Vranac and Cepko), and one is used for bird food (NS-H-6485). The trial was arranged as randomized complete block design (RCBD) with four replications. Sowing was done with six different densities (from 20,000 to 70,000 plants per hectare, with an increment of 10,000 plants per hectare). Analysis of variance (ANOVA) showed that the effect of hybrid, stand density and hybrid ? stand density interation were highly significant for seed yield and protein content. The highest seed yield, on the basis of average for all densities, was found in NS-H-6485 (4.77 t ha-1) and in NS Gricko (4.43 t ha-1). Average seed yield of hybrids significantly increased up to 50,000 plants per ha-1, when it reached the value of 4.50 t ha-1, and then decreased. Significantly higher protein content, taking into account all stand densities, showed hybrid Cepko (16.94%). Protein content, above the overall average value, was achieved in hybrid Vranac (16.11%). The high?est protein content in the average for all six hybrids was at the lowest stand density (20,000 plants per ha-1), and then decreased up to higher densities. The results showed that stand density had significant effect on seed yield and protein content in sunflower hybrids.


Author(s):  
Sushan Chowhan ◽  
Majharul Islam

Zero or no tillage (ZT) mustard (Brassica campestris L.) cultivation is being increased and popularized these days in Bangladesh. But micronutrient management specially Zinc (Zn) with recommended dose of NPKSB fertilizers are poorly practiced in this type of cultivation. Micro nutrient deficiency is an emerging problem due continuous usage of soil resources (ground water, intensive cultivation etc.). Thus, to sustain and adopt the potential yield of modern mustard varieties all types fertilization is must. Basing on this problem an investigation was employed at Bangladesh Institute of Nuclear Agriculture (BINA) Sub-station, farm, Ishurdi, Pabna to find out definite dose of zinc application under zero tillage mustard cultivation for maximizing seed yield. The study was laid in a factorial Randomized Complete Block Design (RCBD) with three replicates. Two modern varieties viz. Binasarisha-10 (V1) and BARI Sarisha-14 (V2) were tested with six level of Zn doses viz. 0.0 kg ha-1 (T1), 1.5 kg ha-1 (T2), 3.0 kg ha-1 (T3), 4.5 kg ha-1 (T4), 6.0 kg ha-1 (T5) and 7.5 kg ha-1 (T6). Seed were line broadcasted after harvesting T. aman rice during Rabi 2020 season. Data on yield parameters were collected after final harvesting and analyzed by Statistix 10. Results divulge that maximum straw and seed yield was attained with treatment combinations V1T4 (3.63 t ha-1) and V2T4 (2.24 t ha-1) with V2T3 (2.18 t ha-1). Whereas, the minimum was obtained from V2T5 (2.51 t ha-1) and V1T1 (0.99 t ha-1) along with V2T1 (1.01 t ha-1). Hence, soil application of Zn between 3 kg ha-1 to 4.5 kg ha-1 may give satisfactory yield for ZT farming.


2016 ◽  
Vol 96 (1) ◽  
pp. 151-159 ◽  
Author(s):  
Gan Yantai ◽  
K. Neil Harker ◽  
H. Randy Kutcher ◽  
Robert H. Gulden ◽  
Byron Irvine ◽  
...  

Optimal plant density is required to improve plant phenological traits and maximize seed yield in field crops. In this study, we determined the effect of plant density on duration of flowering, post-flowering phase, and seed yield of canola in diverse environments. The field study was conducted at 16 site-years across the major canola growing area of western Canada from 2010 to 2012. The cultivar InVigor® 5440, a glufosinate-resistant hybrid, was grown at five plant densities (20, 40, 60, 80, and 100 plants m−2) in a randomized complete block design with four replicates. Canola seed yield had a linear relationship with plant density at 8 of the 16 site-years, a quadratic relationship at 4 site-years, and there was no correlation between the two variables in the remaining 4 site-years. At site-years with low to medium productivity, canola seed yield increased by 10.2 to 14.7 kg ha−1 for every additional plant per square metre. Averaged across the 16 diverse environments, canola plants spent an average of 22% of their life cycle flowering and another 27% of the time filling seed post-flowering. Canola seed yield had a negative association with duration of flowering and a positive association with the days post-flowering but was not associated with number of days to maturity. The post-flowering period was 12.7, 14.7, and 12.6 d (or 55, 68, and 58%) longer in high-yield experiments than in low-yield experiments in 2010, 2011, and 2012, respectively. We conclude that optimization of plant density for canola seed yield varies with environment and that a longer post-flowering period is critical for increasing canola yield in western Canada.


2021 ◽  
Vol 11 (01) ◽  
pp. 736-748
Author(s):  
M. M. Hossain ◽  
◽  
S. Yesmin ◽  
M. Z. Islam ◽  
M. A. Hossain ◽  
...  

An experiment was conducted at the Sher-e-Bangla Agricultural University farm from April to June 2017 in Kharif season to evaluate the performance of two mungbean varieties under different NPK fertilizers doses in field conditions. The experiment was laid out in Randomized Complete Block Design (RCBD), comprising six treatments with three replications. In the experiment, varieties used were BARI mung-6 and BARI mung-5 and the combination of the treatment were T0 = (control), T1 (10-40-25 NPK kg ha-1), T2 (10-60-45 NPK kg ha-1), T3 (20-50-35 NPK kg ha-1), T4 (30-40-25 NPK kg ha-1) and T5 (30-40-45 NPK kg ha-1), respectively. Mungbean cultivars responded noticeably to the supplementary NPK fertilizers as the crop characters were significantly influenced by different levels of NPK fertilizers. Data were recorded on plant height, leaves plant-1, branches plant-1, pods plant-1, seeds pod-1, 1000-seed weight, seed, and straw yield at different days after sowing. Of the two varieties, BARI mung-6 gave the highest seed yield (1.72 t ha-1) next to the higher plant growth and straw yield On the contrary, BARI mung-5 cultivar produced the lowest seed yield (1.57t ha-1), plant growth, and straw yield. The results showed that T3 (20-50-35 NPK kg ha-1) treatment was the best treatment as regards plant growth and yield parameters. The highest seed yield was produced by treated plot T3 (20-50-35 NPK kg ha-1) over the untreated control plot, T1, T2, T4, and T5, respectively. As for the combined effect, V1T3 (BARI mung-6 and T3 = 20kg N + 50kg P + 35kg K ha-1) performed the best results in all growth and development characters. Therefore, the combined application of 20-50-35 kg NPK ha-1 might be considered to be found optimal to get a considerable seed yield of mungbean variety BARI mung-6.


2003 ◽  
Vol 21 (3) ◽  
pp. 443-447 ◽  
Author(s):  
Márcio S. de Lima ◽  
Antonio I. I. Cardoso ◽  
Marcelo F. Verdial

Squash seeds yield and quality can be improved by proper population plant spacing and the pollen quantity, which influences the pollination quality and fertilization. Nine experiments were conducted as a factorial combination of three spacing between plants (0.8 x 0.3, 0.8 x 0.6 and 0.8 x 0.9 m), two quantities of pollen (50% of an anther and another entire one) and natural insect pollination. Seed and fruit production parameters, and seed quality were evaluated. A randomized complete block design, five replications, with ten plants per plot was adopted. Larger plant spacing increased the average number of mature fruits and seed yield per plant. Seed yield was directly proportional to the amount of pollen used during pollination. Higher amounts of pollen resulted in higher seed yield per area, but the plant spacing did not affect this characteristic. Manual pollination, using a whole anther, did not differ from natural pollination in relation to seed yield and quality.


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