Effect of nitrogen fertilizer application on seed yield, N uptake, and seed quality of Camelina sativa

2014 ◽  
Vol 94 (1) ◽  
pp. 35-47 ◽  
Author(s):  
S. S. Malhi ◽  
E. N. Johnson ◽  
L. M. Hall ◽  
W. E. May ◽  
S. Phelps ◽  
...  
Keyword(s):  
Seed Yield ◽  
Nitrogen Fertilizer ◽  
Seed Quality ◽  
N Uptake ◽  
Fertilizer Application ◽  
Camelina Sativa

Effects of nitrogen fertilizer application on seed yield, N uptake, N use efficiency, and seed quality of Brassica carinata

2013 ◽  
Vol 93 (6) ◽  
pp. 1073-1081 ◽  
Author(s):  
E. N. Johnson ◽  
S. S. Malhi ◽  
L. M. Hall ◽  
S. Phelps
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
N Uptake ◽  
Fertilizer Application ◽  
Brassica Carinata ◽  
N Fertilizer ◽  
N Use Efficiency ◽  
Use Efficiency ◽  
N Rates ◽  
N Use

Johnson, E. N., Malhi, S. S., Hall, L. M. and Phelps, S. 2013. Effects of nitrogen fertilizer application on seed yield, N uptake, N use efficiency, and seed quality of Brassica carinata . Can. J. Plant Sci. 93: 1073–1081. Ethiopian mustard (Brassica carinata A. Braun) is a relatively new crop in western Canada and research information on its response to N fertilizer is lacking. Two field experiments (exp. 1 at 3 site-years and exp. 2 at 4 site-years) were conducted from 2008 to 2010 in Saskatchewan and Alberta, Canada, to determine effect of N fertilizer application on Brassica carinata plant density, seed and straw yield, N uptake in seed and straw, N use efficiency (NUE), N fertilizer use efficiency (NFUE) and seed quality. N rates applied were 0 to 160 kg N ha−1 and 0 to 200 kg N ha−1 in exps. 1 and 2, respectively. Plant density was not affected by increasing N rate at 5 site-years but declined with high rates of N application at 2 site-years. Seed yield responded to applied N in 6 of 7 site-years, with the non-responsive site having a high total N uptake at the 0 kg N ha−1 rate (high Nt value). There were no sites where seed yields were maximized with the N rates applied. Response trends of straw yield and N uptake were similar to that of seed yield at the corresponding site-years. NUE and NFUE generally declined as N rate increased. Protein concentration in seed generally increased and oil concentration in seed decreased with increasing N rates. In conclusion, the responses of seed yield, total N uptake, NUE, and NFUE to applied N was similar to those reported in other Brassica species with the exception that a rate was not identified in which Brassica carinata yields were maximized.

scholarly journals Response of Physiological Characteristics, Seed Yield and Seed Quality of Quinoa under Difference of Nitrogen Fertilizer Management

2016 ◽  
Vol 12 (1) ◽  
pp. 20-27
Author(s):  
P. Kansomjet ◽  
P. Thobunluep ◽  
S. Lertmongko ◽  
E. Sarobol ◽  
P. Kaewsuwan ◽  
...  
Keyword(s):  
Seed Yield ◽  
Nitrogen Fertilizer ◽  
Seed Quality ◽  
Physiological Characteristics ◽  
Fertilizer Management

scholarly journals Effect of cutting frequencies and nitrogen levels on growth, green and seed yield and quality of water spinach (Ipomoea reptans Poir.)

2014 ◽  
Vol 6 (2) ◽  
pp. 545-551
Author(s):  
R. K. Sarkar ◽  
J. C. Jana ◽  
S. Datta
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Fertilizer Application ◽  
Quality Parameters ◽  
Quality Parameter ◽  
Water Spinach ◽  
Nitrogen Levels ◽  
Commercial Cultivation ◽  
Yield And Quality

To study the effect of cutting frequencies and nitrogen levels on growth, green and seed yield and quality of upland water spinach (Ipomoea reptans Poir.) an experiment was undertaken with four cutting frequencies (C0 = no cutting; C1 = one cutting at 45 days after sowing (DAS); C2 = two cutting at 45 and 65 DAS and C3 = three cutting at 45, 65 and 85 DAS) and five nitrogen levels (N0 = no application; N1 = 50 kg/ha; N2 = 100 kg/ha; N3 = 150 kg/ha and N4 = 200 kg/ha). Results revealed that all growth, seed yield and seed quality attributes were found to decrease significantly with higher cutting frequencies, whereas, reverse effects on all physiological attributes, green yield and its quality parameters. On the other hand, nitrogen level (upto 150 kg N/ha) had significant effect and all these parameters. The highest green yield was recorded at three cuttings and 150 kg N/ha individually and also at their interaction (16.34, 12.57 and 17.77 t/ha, respectively). Maximum value of quality parameter like vitamin A (3072.9 μg/100 g) was recorded in one cutting with 150 kg N/hectare, whereas, maximum ascorbic acid was recorded maximum (45.31 mg/100 g) in one cutting without N fertilizer application Maximum net profit of Rs. 114324.00 with B: C ratio of 2.22:1 was obtained with combination of three cuttings and 150 kg N/ha and that may be adopted for its commercial cultivation in medium to upland situation under terai region of West Bengal.

scholarly journals Plant spacing and pollen quantity on yield and quality of squash seeds

2003 ◽  
Vol 21 (3) ◽  
pp. 443-447 ◽  
Author(s):  
Márcio S. de Lima ◽  
Antonio I. I. Cardoso ◽  
Marcelo F. Verdial
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Block Design ◽  
Fruit Production ◽  
Plant Spacing ◽  
Plant Seed ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Pollen Quantity

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.

scholarly journals Assessing the Response of Sesame to Inorganic and Organic Nutrient Sources

2019 ◽  
Vol 12 (1) ◽  
pp. 108
Author(s):  
Paul Anguria ◽  
George N. Chemining’wa ◽  
Richard N. Onwonga ◽  
Michael A. Ugen
Keyword(s):  
Seed Yield ◽  
Finger Millet ◽  
Crop Residues ◽  
Seed Quality ◽  
Block Design ◽  
Mineral Fertilizers ◽  
Fertilizer Rate ◽  
Nutrient Sources ◽  
Randomized Complete Block Design

Sesame (Sesamum indicum. L) is one of the main sources of livelihoods in northern Uganda. However, its production is constrained by low soil fertility and moisture levels. A study was conducted at Serere, Uganda in 2013 and 2014 to investigate the effect of organo-mineral fertilizers on growth, seed yield and nutritional quality of sesame. The design of the experiment was a randomized complete block design with three replications. The treatments comprised: control (no soil amendment), mixtures of 4 crop residues each at (3 and 6 t/ha) and two rates of N, P and K. Finger millet husks (3 t/ha) plus lower fertilizer rate (30 kg N-25 kg P-40 Kg K/ha) had significantly higher seed yield of sesame; while finger millet husks (6 t/ha) plus higher fertilizer rate (60 kg N-50 kg P-80 Kg K/ha) significantly increased vegetative growth of sesame. Finger millet husks (6 t/ha) plus lower fertilizer rate had significantly higher seed crude protein content of sesame; while cowpea husks (3 t/ha) plus higher fertilizer rate and groundnut shells (3 t/ha) plus lower fertilizer rate produced significantly higher seed total ash and seed oil content of sesame, respectively. This study has demonstrated that application of a mixture of crop residues and inorganic fertilizers is the best treatment in enhancing growth, seed yield and nutritional seed quality of sesame.

Effect of NPK on growth, yield and seed quality of hybrid Chilli

2019 ◽  
Vol 9 (1) ◽  
pp. 35-41
Author(s):  
M Hasan ◽  
M Robbani ◽  
R Parvin ◽  
MNH Mehedi ◽  
I Hossain
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Seed Viability ◽  
Growth Yield ◽  
Control Treatment ◽  
Npk Fertilizers ◽  
Seed Vigour ◽  
Female Line ◽  
Long Time

An experiment was carried out at Germplasm Centre and Plant Biotechnology Lab, Department of Horticulture, PSTU to evaluate the growth, seed yield and quality of hybrid F1 chilli (cv. Sonic) crossing male line (LTSL-004-M) and female line (LTSL-004-F) along the viability of productive seeds influenced by NPK fertilizers during the period from November 2015 to October 2016. Ten different treatments of NPK fertilizers were used. Result showed that all the characteristics except primary branches and1000 seed weight were influenced significantly due to the application of NPK fertilizers. The tallest plant (69.88 cm), more leaves plant–1 (2491.33), highest number of secondary branches plant-1, tertiary branches plant-1 (5.00 and 88.00, respectively), number of flowers and hybrid fruits plant–1 (1533.00 and 12.33, respectively) and weight of seeds (4.03 g plant–1) along with required more time (54.67 days) for flowering were obtained from the application of 145 kg N ha–1, 175 kg P ha–1 and 96 kg K ha–1 (T4) which produced the highest final seed yield of chilli (4.03 kg ha–1). Application of T5 and T9 showed the highest number of primary branches (2.33). In seed viability characteristics T9 treated seeds showed the highest germination (100, 97.33 and 94.97%) at 1st, (1 MAH - Month After Harvest), 2nd (2 MAH) and 3rd (4 MAH) observations, respectively. The T3 treated seeds performed well in respect of Seed Vigour Index (SVI) at 1st and 2nd observations (8.00 and 7.48, respectively) but T9 treated seeds showed the highest SVI (6.32) at 3rd observation. Above indicating all characteristics were lowest under only recommended doses of NPK T1 as control treatment except days to first flowering. The observations suggested that production of hybrid chilli seeds could be enhanced by applying T4. While seeds of chilli treated by T9 in field level showed long time viable. Application of 145 kg N ha–1, 175 kg P ha–1 and 96 kg K ha–1 may be suggested for seed production of chilli and 110 kg N ha–1, + 175 kg P ha–1 + 115 kg K ha–1 for keeping the long time seed viability. Int. J. Agril. Res. Innov. & Tech. 9 (1): 35-41, June, 2019

Effect of preharvest applications of glyphosate on the drying, yield and quality of canola

2000 ◽  
Vol 80 (2) ◽  
pp. 433-439 ◽  
Author(s):  
A. L. Darwent ◽  
K. J. Kirkland ◽  
L. Townley-Smith ◽  
K. N. Harker ◽  
A. J. Cessna
Keyword(s):  
Brassica Rapa ◽  
Seed Yield ◽  
Seed Quality ◽  
Canola Seed ◽  
Moisture Contents ◽  
Yield And Quality ◽  
Seed Moisture ◽  
Seed Content ◽  
Seed Yields

Potential use of preharvest applications of glyphosate in canola (Brassica rapa L.) in western Canada both as a harvest aid and to control weeds prompted this study. Experiments were conducted from 1988 to 1990 at four locations in the region to document the effectiveness of preharvest applications of glyphosate to enhance canola seed and foliage drydown and to measure the effect of such applications on seed yield and quality. Glyphosate was applied in early August to early September at rates of 0.45, 0.90 and 1.70 kg acid equivalent ha−1 to canola with seed moisture contents ranging from 79 to 12%. Seed and foliage moisture drydown were not enhanced by glyphosate treatment. Glyphosate treatments generally had little or no effect on canola seed yields, seed weight, seed germination, green seed content or oil content except when applied when the pods were green and when seed moisture contents were high. Seed/pod moisture was not a reliable indicator of stage of canola development and thus, should not be used alone as an indicator of when preharvest applications of glyphosate can be applied to canola without decreasing seed yield and quality. Key words: Glyphosate, canola, Brassica rapa L., preharvest application, desiccation, seed quality

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