Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Lima, Maria Dilma de; Pelúzio, Joênes Mucci; Mandarino, J. M. G.; Lima, D. K. S.

doi:10.1590/1807-1929/agriambi.v21n6p392-397

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…Our results showed that a late sowing time resulted in a lower PC of seeds in the year with unfavorable weather conditions. A similar result was established by Lima et al [28]. In essence, the PC in soybean is caused by genetic factors and environmental factors during the grain-filling stage [29].…”

Section: Sowing Time Affected Quantitative and Quality Traitssupporting

confidence: 79%

Genotype and Sowing Time Effects on Soybean Yield and Quality

Mandić

Đorđević²,

Ðorđević³

et al. 2020

Agriculture

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The successful production of soybeans is largely dependent on the sowing time, because every sowing outside the optimal time contributes significantly to yield losses. This field study aimed to evaluate the effects of sowing time (optimal—April 5; late—April 27) on the quantitative and quality traits of three soybean genotypes (Galina—0 maturity group; Sava—I maturity group; and Rubin—II maturity group) under dryland conditions in Vojvodina Province (Serbia) during 2017 and 2018. The genotype Sava had higher yield in climatic-unfavorable 2017, while Rubin had a higher yield in climatic-favorable 2018. The yields significantly decreased when the soybeans were sown in late April due to reductions in the number of pods per plant, seed weight per plant, and 1000-seed weight. The reduction in yield components was likely due to the accelerated senescence of plants and the negative effect of high temperature and low precipitation during the seed filling stage. Accordingly, the various sowing times and properly chosen genotypes provide a better utilization of soil and water resources. A proper genotype selection and sowing time can contribute to a high yield. At the same time, the protein and oil contents can be altered by the sowing time, especially under water stress during the reproductive stage.

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Section: Sowing Time Affected Quantitative and Quality Traitssupporting

confidence: 79%

Genotype and Sowing Time Effects on Soybean Yield and Quality

Mandić

Đorđević²,

Ðorđević³

et al. 2020

Agriculture

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“…Mandić et al [58] found that unfavourable weather conditions resulted in lower protein content in soybean seeds. Lima et al [64] showed that a late sowing time resulted in a lower protein yield in the year with unfavourable weather conditions. According to Benzain and Lane [65], protein content is more dependent on environmental conditions than on the genotype.…”

Section: Resultsmentioning

confidence: 99%

The Seed Yield of Soybean Cultivars and Their Quantity Depending on Sowing Term

Księżak¹,

Bojarszczuk²

2022

Agronomy

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The successful production of soybean seeds is dependent on the sowing date, because every sowing outside of the optimal time contributes to losses of yield. The aim of the study was to identify the response to sowing date of the chosen soybean cultivars by the evaluation of the length of the soybean vegetation period, yield level, its parameters and seed chemical composition. A field experiment was conducted in the years 2016–2019 at the Agricultural Experimental Station in Grabów (Masovian Voivodeship, Poland) belonging to the Institute of Soil Science and Plant Cultivation—State Research Institute in Puławy. Soybean cultivars (four in 2016–2017 and six in 2018–2019) listed in the EU Common Catalogue with various earliness were included in the experiment. Three different sowing dates were used: I—early, II—medium and III—delayed. The two-factor experiment was carried out using a split-plot design on Luvisol soil with sandy loam texture classes, in four replications. Soybean seeds were inoculated with a bacterial culture Nitragina containing strains Bradyrhizobium japonicum. After reaching full maturity, the most important morphological traits of 10 plants and yield components: the number of pods per plant and the number of seeds per pod were provided. After harvest, the seeds yield (kg per hectare at the 14% moisture), and 1000-seed weight were determined. The study showed that in the years with favourable weather conditions during the growing season the best yields were obtained for soybean sown on the second date, while in the year with unfavourable weather conditions, the sowing date had no significant effect on the yields. Seeds of the soybean cultivars grown under conditions of limited rainfall contained about 9% more protein than those grown under more favourable agroecological conditions. The delay of sowing date by about 20 days positively influenced the accumulation of protein in seeds.

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“…Soybean has become an important agricultural commodity because of the wide application of its products for human and animal consumption, and its economic value on the national and international markets (Lima et al 2017). CONAB (2022) projects for the 2021/2022 harvest 122.8 million tons of grains, 3.8% increase in the planting area and drop yield of 11.1%.…”

Section: Introductionmentioning

confidence: 99%

Ecophysiology and water use efficiency of soybean cultivars under field conditions

Costa

Oliveira²,

Braun³

et al. 2022

Biosci. J.

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A wide range of soybean cultivars is available on the market and understanding the physiological response and yield of these materials is fundamental to develop new management systems. Thus, the objective of the present study was to assess ecophysiological parameters and yield of soybean cultivars under field conditions. The experiment was carried out on a farm located in the municipality of Açailândia, Maranhão, Brazil. Three commercial cultivars were used (SC1, SC2 and SC3), and gas exchanges, SPAD index, Fv/Fm, photosynthesis index (PI), instantaneous water use efficiency (WUE) and intrinsic instantaneous of the use of water (iWUE) were assessed during the vegetative (V5) and reproductive (R5) stages. In addition, the biomass and production components were obtained. A randomized complete block design was used, with three cultivars and six replications. SC2 obtained the best mean for the photochemical variables. SC2 was more efficient at both development stages in WUE, but the maximum iWUE values were obtained in SC3. The SC2 cultivar obtained the best responses in the main variables analyzed, resulting in a higher yield.

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Potassium fertilization and sowing seasons on protein yield in soybean cultivars

Cited by 6 publications

References 14 publications

Genotype and Sowing Time Effects on Soybean Yield and Quality

Genotype and Sowing Time Effects on Soybean Yield and Quality

The Seed Yield of Soybean Cultivars and Their Quantity Depending on Sowing Term

Ecophysiology and water use efficiency of soybean cultivars under field conditions

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