scholarly journals Effect of aphid control by disulfoton on seed yield components and seed quality of oilseed rape

1980 ◽  
Vol 8 (1) ◽  
pp. 45-48 ◽  
Author(s):  
J. Lammerink ◽  
R. A. Banfield
2019 ◽  
Vol 10 ◽  
Author(s):  
Emilie Poisson ◽  
Jacques Trouverie ◽  
S. Brunel-Muguet ◽  
Yacine Akmouche ◽  
Célia Pontet ◽  
...  

Author(s):  
Rade Stanisavljevic ◽  
Jasmina Milenkovic ◽  
Jasmina Radovic ◽  
Dragoslav Djokic ◽  
Dragan Terzic ◽  
...  

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 520
Author(s):  
Ireen Drebenstedt ◽  
Leonie Hart ◽  
Christian Poll ◽  
Sven Marhan ◽  
Ellen Kandeler ◽  
...  

Increasing air and soil temperatures and changes in precipitation patterns as consequences of climate change will affect crop production in agricultural ecosystems. The combined effects of soil warming and altered precipitation on the productivity and product quality of oil crops are not yet well studied. Winter oilseed rape (OSR) (Brassica napus L., cv. Mercedes) was field-grown under elevated soil temperature (+2.5 °C), reduced precipitation amount (−25%), reduced precipitation frequency (−50%) both separately and in combination in order to investigate effects on crop development, seed yield, and seed quality. Soil warming accelerated crop development during early plant growth and during spring. At maturity, however, plants in all treatments were similar in quantitative (aboveground biomass, seed yield) and qualitative (protein and oil content, amino acids, fatty acids) parameters. We observed the long-term effects of the precipitation manipulation on leaf size, leaf senescence and biomass allocation. Seed yield was not affected by the altered climatic factors, perhaps due to adaptation of soil microorganisms to permanent soil warming and to relatively wet conditions during the seed-filling period. Overall, OSR performed well under moderate changes in soil temperature and precipitation patterns; thus, we observed stable seed yield without negative impacts on nutritive seed quality.


2020 ◽  
pp. 1-14
Author(s):  
Zyada H. G. ◽  
Sabreen Kh. A. Ibraheim ◽  
F. M. El-Saadony ◽  
Mohamed I. Mohaseb

The response of cowpea cv. Cream 7 growth and productivity to potassium fertilization mixed with or without Nano mixture of micronutrients were studied during the summer of 2017 and 2018 seasons at Experimental Farm, Faculty of Agriculture, Zagazig University, Egypt. The experiment aimed to assessed the effect of potassium fertilization levels (0.0, 24, 48 and 72 kg K2O/Fed), Nano mixture of micronutrients rate (0.0, 0.50, 1.0 and 2.0 g/l) and their interactions on growth, seed yield, macronutrients concentration in shoot and seeds and seed quality of cowpea plants. Source of potassium levels was potassium sulphate (48-52% K2O). The used Nano mixture of micronutrients called "Magrow NanoMix" and it contained Fe (6%), Zn (6%), B (2%), Mn (5%), Cu (1%) and Mo (0.1%). These treatments arranged in a split-plot design with three replicates. The results referred to that fertilizing cowpea plants with potassium at 72 kgK2O/Fed. significantly increased cowpea growth (plant height, branch and leaf numbers per plant as well as branch, leaf and total dry weights/plant), yield components(pod diameter and length, hundred seeds weight, pod number/plant and seed yield/ plant and /Fed.) as well as chemical constituents (N, P and K percentages in each leaves and seeds as well as total carbohydrates and protein percentages in seeds, also, total chlorophyll content (SPAD) in cowpea leaves compared with control and the lowest levels under study. The same trend was achieved by using the highest rate of Nano mixture of micronutrients (2g/l) regarding the increase in most of abovementioned parameters of growth, yield and chemical constituents of cowpea compared with unsprayed plants (control). In general, application of potassium fertilization at 72kg K2O/ Fed. as soil application with Nano- mixture of micronutrients at 2g/l rate as foliar spray was recorded the best treatments for increasing all cowpea growth and seed yield components as well as N, P, K and carbohydrates percentage in seeds such as compared with control treatment (without using mineral potassium or Nano mixture of micronutrients) in growing season.


2015 ◽  
Vol 15 (1) ◽  
pp. 85
Author(s):  
Dragoljub Beković ◽  
Rade Stanisavljević ◽  
Milan Biberdžić ◽  
Slaviša Stojković ◽  
Jasmina Knežević

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 %).


Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1088
Author(s):  
Mohamed Houssemeddine Sellami ◽  
Antonella Lavini ◽  
Davide Calandrelli ◽  
Giuseppe De Mastro ◽  
Cataldo Pulvento

Faba beans (Vicia faba L.), also known as fava beans, like other crops, are influenced by several factors: their genotype, environment, and management, as well as the interaction between these, have an important impact on seed yielding and seed quality traits. This study was conducted at three locations in South Italy between 2017 and 2019 to evaluate the sowing date effect on yield and yield components of three Vicia faba L., originating from cool climates. The results showed that seed yield (SY) and yield components declined with sowing delay. The crop’s environment (year × site) and management (sowing date) were found to explain 34.01% and 42.95% of the total seed yield variation, respectively. The data showed that the tested genotypes were positively influenced by the environment with sandy loam soil and early winter sowing date, resulting in either a greater number of SY and THS than in the other environment. The three faba bean genotypes showed tolerance to winter frost conditions in the two growing seasons.


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