The effect of atmospheric humidity on the yield and quality of soya bean

1976 ◽  
Vol 27 (4) ◽  
pp. 501 ◽  
Author(s):  
RG Woodward ◽  
JE Begg
Keyword(s):  
Oil Content ◽  
Soya Bean ◽  
Atmospheric Humidity ◽  
Yield And Quality ◽  
Bean Plants ◽  
Low Humidity ◽  
Controlled Environments ◽  
Bean Yield ◽  
Pod Number

Soya bean plants (cv. Lee) were grown at high and low atmospheric humiditiees in controlled environments. A constant level watering system ensured an adequate supply of water at all times. Bean yields decreased at the low humidity as a result of a reduction m pod number and thus bean number, which was only partly compensated by a small increase In bean weight The reduction In pod number was related to floret abortion rather than pod abortion, and was possibly a consequence of reduced photosynthate supply. The level of humidity did not affect the protein or oil content of the seed. The lower humidity also reduced the dry weights of stems and total tops and the number of nodes per plant. The humidity level before or after flowering alone did not affect bean yield, but the humidity from the start of flowering onwards did affect the number of beans per plant. The possible significance of the results for soya bean production In the Australian environment is considered.

scholarly journals Influence of preemergently applied herbicides on the yield and quality of caraway achenes (Carum carvi L.)

2008 ◽  
Vol 56 (2) ◽  
pp. 255-266
Author(s):  
Antonín Vaculík
Keyword(s):  
Essential Oil ◽  
Standard Length ◽  
Oil Content ◽  
Competitive Ability ◽  
Weed Species ◽  
Yield And Quality ◽  
Significant Difference ◽  
Positive Effect ◽  
Different Doses

Caraway has very low competitive ability against most of weed species. Therefore, it is important to choose a suitable herbicide control, especially at biennial caraway. The experiments with the herbicides applied in caraway were found in pure growth, with variety Kepron (with standard length of ve­ge­ta­ti­ve period). The aim of the trials was to find out the differences at achenes yiled and essential oil content after the treatment by the various herbicides, applied preemergently. Also, the selective ac­ti­vi­ty of individual herbicides was tested, including the different doses. The herbicides used in the ex­pe­ri­ments had enough level of selektivity on the plants of caraway. They had a positive effect on the yiled comparing to non-treated control variant in all observed years. There was no statistically significant difference in essential oil kontent between the treated variants and non-treated control. On the basis of these results, the most suitable herbicide was chosen for the „minor“ registration for caraway.

Influence of Zn, B and S on the yield and quality of groundnut (Arachis Hypogea L.)

2015 ◽  
Vol 38 (6) ◽  
Author(s):  
Bholanath Saha ◽  
Sushanta Saha ◽  
Ritam Saha ◽  
G. C. Hazra ◽  
Biswapati Mandal
Keyword(s):  
Iodine Value ◽  
Oil Content ◽  
Foliar Spray ◽  
Groundnut Oil ◽  
Positive Interaction ◽  
Yield Increase ◽  
Arachis Hypogea ◽  
Yield And Quality ◽  
Mode Of Application

The effect of zinc (Zn), boron (B) and sulphur (S) on the yield and quality of groundnut in a field experiment with three levels of Zn (0, 5, 10 kg Zn ha<sup>−1</sup> as Zn-EDTA as basal), two levels of B (0 and 0.25% boric acid as foliar spray) and three levels of S (0, 25, 50 kg S ha<sup>−1</sup>as CaSO<sub>4</sub>.2H<sub>2</sub>O) in a factorial RBD were studied. Basal application of Zn @ 5 and 10 kg ha<sup><sup></sup>1</sup> caused an increase in nut yield by 3.7% and 28.3% respectively over control, whereas, application of S @ 25 and 50 kg ha<sup>−1</sup> increased the nut yield by 38.3% and 56.6% respectively over control. Conjoint application of Zn @ 10 kg ha<sup>−1</sup> and S @ 50 kg ha<sup>−1</sup> caused an increase in nut yield up to 73.4% over the control. Results, therefore, revealed that conjoint effect of S and Zn towards nut yield was more effective than that of B application. Application of Zn, S and B significantly increased their nutrient uptake in nuts. On an average, S, Zn and B uptake by groundnut ranged from 11.4 to 21.0 kg ha<sup>−1</sup>, 0.14 to 0.40 kg ha<sup>−1</sup> and 0.12 to 0.25 kg ha<sup>−1</sup>, respectively. Integrated mode of application of Zn, B and S showed a positive interaction as yield increase with their uptake in groundnut. Oil content in nuts ranged from 45.3 to 54.4%, while iodine value ranged from 97.8 to 90.5%. Application of S and Zn significantly increased the oil content, while it significantly decreased the iodine value in groundnut. So, application of micronutrients <italic>viz</italic>. Zn and B as well as S fertilization could be a useful strategy not only to increase the yield but also the quality of groundnut.

Yield and quality of canola seed as affected by stage of maturity at swathing

2007 ◽  
Vol 87 (1) ◽  
pp. 13-26 ◽  
Author(s):  
C. L. Vera ◽  
R. K. Downey ◽  
S. M. Woods ◽  
J. P. Raney ◽  
D. I. McGregor ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Brassica Napus ◽  
Seed Development ◽  
Seed Yield ◽  
Oil Content ◽  
Seed Quality ◽  
Combined Treatment ◽  
Oil Composition ◽  
Yield And Quality

Swathing is an important canola (Brassica napus L.) harvest operation in western Canada. The determination of the optimum timing for this operation is worth considering, as premature swathing may lead to reduced seed yield and quality. Seed yield and quality of three canola cultivars (44A89, AC Excel and Ebony), as affected by two seeding dates and several harvest times (six or eight swathing times and one direct combined treatment) was investigated on a Black Chernozem silty loam soil at Melfort, Saskatchewan, Canada, during 1998, 2000 and 2001. Seed yield, weight, protein content (oil-free meal basis) and oil content generally increased with seed development and swathing time. Early seeding was more conducive to achieving higher seed yield, especially in good growing conditions, and resulted in heavier mature seeds with higher oil content. Seed oil composition also changed during seed development. The proportion of oleic (C18:1) and linolenic (C18:3) acids increased, while that of myristic (C14:0), palmitic (C16:0), palmitoleic (C16:1), stearic (C18:0), linoleic (C18:2) and ara chidic (C20:0) acids decreased. The levels of the long chain fatty acids eicosenoic (C20:1) and erucic (C22:1) acids were unaffected. However, the overall amount of fatty acids synthesized (mg 100 seeds-1) increased as seeds matured. Swathing was advantageous over direct combining in preventing weather-induced shattering. Key words: Brassica napus, canola, fatty acid, oil, protein, seed development, seed quality, shattering, direct combining, swathing

scholarly journals Influence of increased temperature on the yield and quality of broad bean in semiarid regions of northwest China

2017 ◽  
Vol 63 (No. 5) ◽  
pp. 220-225
Author(s):  
Guoju Xiao ◽  
Qiang Zhang ◽  
Jing Wang ◽  
Fengju Zhang ◽  
Chengke Luo ◽  
...  
Keyword(s):  
Vicia Faba ◽  
Simulation Experiment ◽  
Broad Bean ◽  
Northwest China ◽  
Growing Period ◽  
Yield And Quality ◽  
Increased Temperature ◽  
Vicia Faba L ◽  
Bean Yield

In this study, a simulation experiment by farm warming with infrared ray radiator was carried out, and results showed that the broad bean (Vicia faba L.) growing days were shortened by increased temperature. The seedling, ramifying, budding, blooming, podding, and maturing stages were shortened by 1–4, 1–2, 1, 2–3, 1–2, and 2–4 days, respectively, and the whole growing period was shortened by 7–16 days when the temperature increased by 0.5–2.0°C. The broad bean yield increased by 10.1–16.6% when the temperature increased by 0.5–1.0°C, and significantly decreased by 38.1–90.1% when the temperature increased by 1.5–2.0°C. Increased temperature significantly improved the fat, carbohydrate, ash and energy contents.

EFFECT OF PASMO DISEASE OF FLAX ON THE YIELD AND QUALITY OF LINSEED OIL

1951 ◽  
Vol 29 (4) ◽  
pp. 339-351 ◽  
Author(s):  
W. E. Sackston ◽  
R. B. Carson
Keyword(s):  
Iodine Number ◽  
Oil Content ◽  
Linseed Oil ◽  
Rust Infection ◽  
Yield And Quality ◽  
Effect On Yield

Heavy infections of pasmo significantly reduced the oil content of flaxseed and the iodine number of the oil. The effects of pasmo infection on oil content and iodine number of the oil were similar to those caused by a hot, dry climate. Oil content was affected similarly by pasmo infection and by flax rust infection, but the two diseases had dissimilar effects on iodine number of the oil. Greatest reductions in oil content and iodine number resulted from pasmo inoculations made when the flax plants were flowering. Inoculations made when the seed was ripening had little or no effect on yield and quality of linseed oil.

Agronomic Factors Influencing Yield and Quality of Groundnuts in the Sudan Gezira

1967 ◽  
Vol 3 (1) ◽  
pp. 41-53 ◽  
Author(s):  
W. M. Tahir ◽  
M. S. Misovic
Keyword(s):  
Oil Content ◽  
Clay Soil ◽  
Plant Population ◽  
Higher Plant ◽  
Plant Populations ◽  
Kernel Weights ◽  
Yield And Quality ◽  
Heavy Clay ◽  
Sudan Gezira

SummaryAn early upright-bunch variety of groundnut, Barberton, and a medium-late spreading-bunch variety, Ashford, were compared at 7·5, 15·0 and 30·0 cm. intra-row spacings planted at one and two kernels per hill on 60 cm. ridges in the irrigated heavy clay soil of the Sudan Gezira in 1963 and 1964. Barberton was harvested on days 95, 110 and 125, and Ashford on days 125, 140 and 155 after planting in July–August. Ashford outyielded Barberton at the lower densities, and the best pod yields were obtained on day 125 harvest at a population of 55,000–60,000 plants per acre. A higher plant population depressed the yield of Ashford while the increased pod yield of Barberton was not significant. Field germination of kernels increased more in Barberton with delay in harvest and with decrease in plant population than in Ashford. Mean pod and kernel weights and shelling out-turn of Barberton increased with delay in harvest. Barberton gave higher oil content and shelling out-turn, and lower proportion of pods with single kernels than Ashford. The highest population of Barberton gave the best oil content in early harvests. In general, the arrangement of plants within rows at similar populations had only small effects except on the quality of nuts, which was improved by planting single kernels at close spacing (7·5 cm.) with the variety Barberton and two kernels at wide spacing (15·0 cm.) with Ashford, at optimum plant populations.

scholarly journals Foliar fertilization with molybdenum in sunflower (Helianthus annuus L.)

2013 ◽  
Vol 59 (No. 4) ◽  
pp. 156-161 ◽  
Author(s):  
P. Škarpa ◽  
E. Kunzová ◽  
H. Zukalová
Keyword(s):  
Dry Matter ◽  
Oil Content ◽  
Foliar Application ◽  
Relative Increase ◽  
Foliar Nutrition ◽  
Foliar Fertilization ◽  
Yield And Quality ◽  
Terminal Bud ◽  
Vegetation Stage

The objective of the vegetation experiment established in 2008&ndash;2011 was to explore the effect of the time and dose of foliar molybdenum (Mo) application on the yield and quality of sunflower. Four treatments were established in the experiment: (1) control &ndash; not fertilised with Mo; (2) application of 125 g Mo/ha in the growing stage of 4 developed leaves (V-4); (3) application of 125 g Mo/ha at the beginning of elongation growth (R-1), and (4) split rate of Mo application of 62 g Mo/ha at stage V-4 (4 developed leaves) and 62 g Mo/ha at stage R-1 (terminal bud forms). Foliar application of molybdenum increased the biomass production of sunflower plants and its content in dry matter. A statistically significant effect of molybdenum foliar application on sunflower yields was found. Foliar application of Mo up to a dose of 125 g Mo/ha at the beginning of vegetation (stage V-4) and developmental stage R-1 increased yields of achenes. The relative increase in the oil content after foliar nutrition was not significant and ranged between 1.4% and 2.6%. Oil production increased due to increased yields and stabilised oil content. Foliar application of molybdenum had no effect on the content of oleic acid.

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