scholarly journals Influence of row spacing on herb yield of common chamomile (Chamomilla recutita (L.) Rausch.) as well as seed yield and quality

2012 ◽  
Vol 64 (3) ◽  
pp. 35-38
Author(s):  
Agnieszka Surmacz-Magdziak
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Row Spacing ◽  
Germination Capacity ◽  
Single Row ◽  
Yield And Quality ◽  
Seed Yields ◽  
Herb Yield ◽  
Number Of Branches

The experiment consisted of three single row spacings (every 25, 40 and 50 cm) and four double and triple row spacings (40-25-40 cm, 40-25-25-40 cm, 50-25-50 cm, 50-25-25- 50 cm). The aim of the present experiment was to compare the influence of varying spacing on yields and quality of chamomile seeds. Among the row spacings under comparison, the highest seed and herb yields were achieved from the triple row spacing. 1000-seed weight was proportional to seed yield, and the seed germination capacity was not differentiated due to row spacings used. Plants growing in single rows every 25 cm formed the lowest number of branches terminated by flower heads, thus the herb and seed yields were the lowest.

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

EFFECTS OF CHEMICAL DESICCATION VERSUS SWATHING ON SEED YIELD AND QUALITY OF FABABEANS (VICIA FABA)

1980 ◽  
Vol 60 (4) ◽  
pp. 1115-1121 ◽  
Author(s):  
M. F. BETTS ◽  
I. N. MORRISON
Keyword(s):  
Vicia Faba ◽  
Seed Yield ◽  
Seed Quality ◽  
Yield And Quality ◽  
Seed Yields

Fababean plants were swathed or desiccated with diquat [6,7-dihydrodipyrido (1,2-A:2′, 1′-C) pyrazinediium salt] at four stages of maturity corresponding to the time when 0, 10, 25 and 50% of the pods had turned from green to black. Over the 3 yr of the study no significant differences were observed between seed yields from swathed or desiccated plants. Regardless of whether the plants were swathed or desiccated, yields and seed quality tended to be higher from plants which had 25% or more black pods at the time of treatment. Desiccating before 25% of the pods have turned black may have a more serious effect on reducing seed quality than swathing before the recommended time. By desiccating prematurely, there is a risk of reducing seed quality by significantly increasing the number of discolored or shrivelled seeds.

Effect of inoculation and nitrogen fertilization on nodulation, seed yield and quality of soya beans

1972 ◽  
Vol 78 (2) ◽  
pp. 179-182 ◽  
Author(s):  
S. Abu-Shakra ◽  
A. Bassiri
Keyword(s):  
Amino Acids ◽  
Seed Yield ◽  
Nitrogen Fertilization ◽  
Seed Weight ◽  
Seed Oil ◽  
Dry Weight ◽  
Yield And Quality ◽  
Oil Concentration ◽  
Sulphur Amino Acids

SUMMARYSoya beans grown on land planted the previous year with inoculated soya beans produced more nodules, lodging, seed yield, 1000 seed weight, and protein content and less seed oil concentration as compared to those grown on land that was planted with non-inoculated soya beans. Nitrogen fertilization (120kg N/ha) reduced the total number of nodules per plant. Increasing inoculation rates of the seed increased the dry weight of nodules per plant. Location, nitrogen fertilization, and inoculation increased or decreased the levels of certain amino acids but had no significant effect on the sulphur amino acids, cystine and methionine.

scholarly journals Effect of head decapitation and planting density on quality seed production of sprouting broccoli (Brassica oleracea var. italica L.)

2015 ◽  
Vol 7 (1) ◽  
pp. 471-476 ◽  
Author(s):  
D.K. Mehta ◽  
Tarun Singh ◽  
Rajesh Kanwar
Keyword(s):  
Brassica Oleracea ◽  
Seed Production ◽  
Seed Yield ◽  
Seed Quality ◽  
Quality Parameters ◽  
Planting Density ◽  
Plant Spacing ◽  
Yield And Quality ◽  
Number Of Branches

A study was carried out to evaluate the effect of head decapitation and planting density on plant growth, seed yield and quality of sprouting broccoli, Brassica oleracea var. italica L. using cultivar ‘Green Head’. The twenty treatments comprised of combinations of four head decapitation methods viz., D1 (decapitation of primary head at appearance and harvesting seeds from secondary heads), D2 (decapitation of primary head at marketable stage and harvesting seeds from secondary heads), D3 (removal of secondary heads at appearance and harvesting seeds primary head) and ‘D4’ (No decapitation- control) and five planting densities viz., S1 (60x60 cm), S2 (60x45 cm), S3(45x45 cm), S4 (60x30 cm), and S5 (45x30 cm). Decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) and planting density S3 (45x45 cm) independently as well as in combination gave highest seed yield per plot and per hectare. This combination was also found comparable to other combinations for other characters like days to 50% flowering, days to seed harvesting, plant height at harvesting (cm), number of branches per plant, number of siliqua per plant, siliqua length (cm), number of seeds per siliqua and seed quality parameters. Therefore, it is suggested that decapitation of primary head at appearance and harvesting seeds from secondary heads (D1) in combination with plant spacing of 45x45 cm i.e. D1S3 can be recommended for commercial seed production of sprouting broccoli.

EFFECT OF SEEDING RATE ON HEIGHT, YIELD AND QUALITY OF LARGE-SEEDED AND SEMI-DWARF BUCKWHEAT GENOTYPES

1986 ◽  
Vol 66 (1) ◽  
pp. 61-66 ◽  
Author(s):  
G. H. GUBBELS ◽  
C. G. CAMPBELL
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Seed Weight ◽  
Fagopyrum Esculentum ◽  
Seed Density ◽  
Seeding Rate ◽  
Consistent Effect ◽  
Yield And Quality ◽  
Fagopyrum Esculentum Moench

Two large-seeded buckwheat (Fagopyrum esculentum Moench.) cultivars, Mancan and Manor, and semi-dwarf lines, were grown at Morden and Portage la Prairie in the years 1979–1982 at seeding rates of 15, 30, 45 and 60 kg/ha. There was no consistent effect of seeding rate on plant height, seed weight (g/1000 seeds) or seed density. In six of the eight location-years there was no interaction of genotype × seeding rate for seed yield, indicating that, generally, the cultivars and lines reacted similarly to differences in seeding rate. It was concluded that a seeding rate of from 30 to 45 kg/ha would ensure optimum yield in most years.Key words: Buckwheat, Fagopyrum esculentum Moench., seeding rates

scholarly journals The influence of mineral nutrition, stage of harvest and flower position on seed yield and quality of phaseolus Vulgaris L.

1981 ◽  
Author(s):  
Μιχαήλ Γαβράς
Keyword(s):  
Seed Yield ◽  
Plant Nutrition ◽  
Seed Quality ◽  
Mother Plant ◽  
Yield And Quality ◽  
Phosphorus And Potassium ◽  
Flower Position ◽  
Seed Yields ◽  
Nitrogen Phosphorus

In this work the effects of mother plant nutrition and flower position on the plant in relation to different harvest stages on French beans (Phaseolus vulgaris L. cv. Cascaded; seed yield, quality and progeny performance have been studied. In three pot experiments under glass and one in the field, different levels of nitrogen, phosphorus, potassium and molybdenum were applied to the mother plant and it was found that higher seed yields were obtained with the higher nutrient levels tested, but these high seed yields were not necessarily accompanied by high quality. Seed yield and quality increased with the increase of nitrogen and potassium. The phosphorus effect however, was different, in that the seed yield increased in relation to the levels but the seed quality decreased. Molybdenum was found to be necessary in moderate amounts, especially for the seed quality. The interactions between nitrogen and phosphorus levels (NP) and between nitrogen, phosphorus and potassium (NPK) were found to be very important for bean seed quality, because their significant effect was similar and constantly present in most of the seed vigour components examined. It seems that the combinations of high nitrogen levels with moderate amounts of phosphorus applied to the mother plant resulted in seed of good quality. In one pot experiment under glass the progeny performance was examined, using seed from the 1st mother plant nutrition experiment and it was found that the mother plant nutrition affected the progeny in it*s early stages. This effect disappeared later and no difference in progeny seed yield was found. In two pot experiments under glass the bean pods were harvested at different stages and the pods from the main axis were separated from the pods on the secondary branches grown mainly from the axils of the primary leaves. It was found that the quality of seed from the secondary branches was lower than the quality of seed from the main axis. However, this difference in seed quality became less with the later harvests. The following tests were used to assess seed quality: the official germination test, seedling evaluation test, cold test, and electrical conductivity test. In addition, the seed size was determined and the seeds were analysed for total nitrogen, phosphorus and potassium content.

scholarly journals Seed Yield and Quality of Lowland Rice (Oryza sativa L.) as Influenced by Nitrogen from Organic and Chemical Sources

2016 ◽  
Vol 13 (1) ◽  
pp. 109-118
Author(s):  
Amina Khatun ◽  
Hasina Sultana ◽  
A B M Jamiul Islam ◽  
Md Sultan Uddin Bhuiya ◽  
Md Abu Saleque
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Block Design ◽  
Poultry Manure ◽  
Optimum Dose ◽  
Cow Dung ◽  
Rice Seed ◽  
Yield And Quality ◽  
Seed Yields

A field experiment was conducted at the Bangladesh Rice Research Institute (BRRI) experimental farm during boro season of 2010-11 to determine the effect of nitrogen from organic and chemical sources on rice seed yield and quality. Six treatments- (i) N-control, ii) Optimum dose of nitrogen (164 kg N ha-1) from urea, iii) 50% N from urea and 50% N from CD (cow dung), iv) 50% N from urea and 50% N from PM (poultry manure), v) 100% N from CD and vi) 100% N from PM were compared. The experiment was conducted in a randomized complete block design with four replications. Two boro varieties – BRRI dhan28 and BRRI dhan29 were used as test crops. The urea + PM treatment gave similar seed yields to that of urea in both the varieties. The PM treatment gave similar seed yield to that of urea + PM in BRRI dhan28, but BRRI dhan29 gave significantly lower seed yield in PM than the urea + PM. Sole cowdung or poultry manure application produced significantly lower seed yield than urea + PM treatment and sole urea application. The application of N from cowdung and poultry manure had no effect on rice seed quality as compared to that obtained with urea.The Agriculturists 2015; 13(1) 109-118

scholarly journals Effect of Row Spacing on Seed Yield, Yield Components and Seed Quality of Alfalfa

2015 ◽  
Vol 15 (1) ◽  
pp. 85
Author(s):  
Dragoljub Beković ◽  
Rade Stanisavljević ◽  
Milan Biberdžić ◽  
Slaviša Stojković ◽  
Jasmina Knežević
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
Seed Quality ◽  
Germination Rate ◽  
Row Spacing ◽  
Grain Number ◽  
Alfalfa Seed ◽  
Thousand Seed Weight

Under agro-environmental conditions of Southern Serbia, the re­search was conducted over a three-year period to evaluate the effect of row spacing on seed yield, yield components and seed quality of alfalfa cv. ’K-23’. The average seed yield of alfalfa was highest at a row spacing of 40 cm (271.7 kg ha-1), followed by row spacing of 20 cm (249.4 kg ha-1) and 60 cm (244.0 kg ha-1). The highest and lowest number of inflo­rescences per stem were obtained in rows spaced 60 cm (13.37 inflo­rescences/stem) and 20 cm apart (8.57 inflorescences/stem), respectively. The widest row spacing of 60 cm (7.15 pods / inflorescence) resulted in the highest number of pods per inflorescence, whereas the lowest number was produced at 20 cm spacing (5.50 pods / inflorescence). Grain number per pod ranged from 3.55 (at 20 cm row spacing) to 4.05 (at 60 cm). The highest quality of alfalfa seed during the three years of the research was obtained at the widest row spacing (60 cm). Thousand-seed weight was highest at 60 cm and lowest at 20 cm (1.97 g and 2.07 g, respectively). The highest average values for seed germination rate were reported for 60 cm row spa­cing (88.00%) and the lowest for 20 cm row spacing (85.76 %).

Seed yield and quality of Altai wildrye in populations of contrasting visible glaucousness

1996 ◽  
Vol 76 (3) ◽  
pp. 461-464 ◽  
Author(s):  
Paul G. Jefferson ◽  
G. Andrew Kielly
Keyword(s):  
Key Words ◽  
Seed Yield ◽  
Seedling Establishment ◽  
Seed Weight ◽  
Seed Quality ◽  
Epicuticular Wax ◽  
Yield And Quality ◽  
Normal Green ◽  
Semi Arid

Glaucous Altai wildrye grass, Leymus angustus (Trin.) Pilger, has been reported to exhibit higher seed yield than the normal green phenotype. Seed quality is correlated with successful seedling establishment. Our objective was to determine the seed yield and quality of three half-sib populations of Altai wildrye that differed in visible glaucousness. Seed was harvested from 60 glaucous, 60 non-glaucous, and 60 variably glaucous half-sib lines over 3 yr at a semi-arid location. Seed yield, seed weight and germination was greater from glaucous lines than the nonglaucous lines. Key words: Glaucous, range improvement, seedling establishment, epicuticular wax

scholarly journals The effect of seeding rates and sowing methodson yield and quality seeds of chickpea

2019 ◽  
Vol 2019 (1) ◽  
pp. 99-106
Author(s):  
A.A. Rozhkov ◽  
Y.V. Voropai
Keyword(s):  
Protein Content ◽  
Key Words ◽  
Seed Yield ◽  
Significant Influence ◽  
Row Spacing ◽  
Seeding Rate ◽  
Yield And Quality ◽  
Method Yield ◽  
Yield Capacity

The results of three-year studies of the influence of seed sowing rates and sowing methods on the formation of yield capacity and quality of chickpea seeds are highlighted. The results of the research indicate a significant influence of the studied factors on the level of yield capacity of chickpea seeds. On average, for three years of research, the highest seed yield capacity in the experiment has been observed in the variety Odyssey – 2,16 t/ha. Among the studied variants of the sowing method, the highest rates of chickpea seed yield capacity have been provided by the row method with a row spacing of 30 cm (with a nutrition area of one plant of 120 cm2) at the average sowing rate of 0,7 million units/ha. In particular, the yield capacity of chickpea seeds of Budjak and Odyssey varieties under this combination of the studied factors made up 2,37 and 2,49 t/ha, respectively. The maximum protein content in chickpea seeds in both studied varieties has been obtained on the variants with a minimum seeding rate of 0,5 million units/ha, but the highest protein yield – 0,415 t/ha of Odyssey variety and 0,435 t/ha of Budjak variety - was noted on the variants with a seeding rate of 0,7 million units/ha. Key words: chickpeas, seeding rate, sowing method, yield capacity, protein content.

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