Effect of a Mutant Danbaekkong Allele on Soybean Seed Yield, Protein, and Oil Concentration

The paper presents the result of a triennial field experiment (2013‒15), aiming to determine the influence of irrigation, nitrogen fertilization, and cultivars, as well as their interactions on the yield and chemical properties of the soybean seeds. Four soybean cultivars (Lucija, Vita, Ika and Tena) of different maturity groups were investigate as a sub‐subplot factor (C). The main plot factor (A - irrigation) resulted in a statistically very significant (P≤0.01) seed yield in all three years, and it was found out by an analysis of variance. The subplot factor (B - nitrogen fertilization) had an impact on the grain yield depending on the research year, while sub‐subplot factor (C-cultivar) significantly affected all examined traits. The factor interactions and their significance varied by the research years. The seed yield achieved in 2013 (3883 kg ha-1) indicated a great importance of all factors’ interaction. The correlations between a seed yield and a protein and oil concentration were determined during the research.

Download Full-text

Vertical Canopy Profile and the Impact of Branches on Soybean Seed Composition

Frontiers in Plant Science ◽

10.3389/fpls.2021.725767 ◽

2021 ◽

Vol 12 ◽

Author(s):

Luiz Henrique Moro Rosso ◽

André Froes de Borja Reis ◽

Ignacio Antonio Ciampitti

Keyword(s):

Seed Yield ◽

Management Practices ◽

Soybean Seed ◽

Critical Factor ◽

Main Stem ◽

Future Research ◽

Seed Composition ◽

Morphological Process ◽

Oil Concentration ◽

The Impact

Soybean [Glycine max (L.) Merr.] seeds are of global importance for human and animal nutrition due to their high protein and oil concentrations, and their complete amino acid (AA) and fatty acid (FA) profiles. However, a detailed description of seed composition at different canopy portions (i.e., main stem and branch nodes) is currently lacking in scientific literature. This study aims to (1) characterize seed yield and composition (protein, oil, AA, and FA) at the main stem (exploring a vertical canopy profile) and stem branches and (2) quantify the impact of canopy yield allocation on seed composition, focusing on branches as a potential contributor for higher yields. Four genotypes were field-grown during the 2018 and 2019 seasons, with seeds manually harvested from all the branches and three main stem segments (lower, middle, and upper). Seed samples were analyzed for seed yield (Mg/ha), seed size (mg/seed), protein and oil content (mg/seed) and their respective concentrations (g/kg), and AA and FA concentrations within protein and oil (g/100 g), herein called abundance. The upper main stem produced greater protein (25%) and oil (15%) content relative to the lower section; however, oil concentration increased from top to bottom while protein concentration followed opposite vertical gradient. Limiting AAs (lysine, cysteine, methionine, threonine, and tryptophan) were more abundant in the lower main stem, while the oleic/(linoleic + linolenic) ratio was greater in the upper segment. Overall, branches produced seeds with inferior nutritional quality than the main stem. However, the contribution of branches to yield (%) was positively related to limiting AA abundance and oil concentration across soybean genotypes. Future research studies should consider the morphological process of stem branching as a critical factor intimately involved with soybean seed composition across environments, genotypes, and management practices.

Download Full-text

Influence of Day and Night Temperature on Soybean Seed Yield

Crop Science ◽

10.2135/cropsci1996.0011183x003600010018x ◽

1996 ◽

Vol 36 (1) ◽

pp. 98-104 ◽

Cited By ~ 57

Author(s):

L. R. Gibson ◽

R. E. Mullen

Keyword(s):

Seed Yield ◽

Soybean Seed ◽

Night Temperature

Download Full-text

High Phosphorus Acquisition and Allocation Strategy Is Associated with Soybean Seed Yield under Water- and P-Limited Conditions

Agronomy ◽

10.3390/agronomy11030574 ◽

2021 ◽

Vol 11 (3) ◽

pp. 574

Author(s):

Yun-Yin Feng ◽

Jin He ◽

Yi Jin ◽

Feng-Min Li

Keyword(s):

Water Stress ◽

Water Supply ◽

Seed Yield ◽

Soybean Seed ◽

Dry Weight ◽

Water Regimes ◽

P Acquisition ◽

Application Rates ◽

Soybean Genotypes ◽

Water Treatments

Both water stress and P deficit limit soybean seed yield, but the effects of water regimes and P application rates, their interaction on P status, acquisition, and partitioning, and their roles in yield performance have not been well-studied. Two soybean genotypes (Huangsedadou (HD) and Zhonghuang 30 (ZH)) with contrasting seed yield and root dry weight (DW) were used to investigate the P status, P acquisition, P partitioning, and yield formation under two water regimes (well-watered (WW) and cyclic water stress (WS)) and three P rates (0 (P0), 60 (P60), and 120 (P120) mg P kg−1 dry soil). The results show that increased P and water supply increased the seed yield, shoot and root DW and P concentrations and accumulations in different organs. Cultivar ZH had a significantly higher seed yield than HD at P60 and P120 under WS and at P0 under WW, but a lower seed yield at P60 and P120 under WW. Cultivar ZH had a significantly higher P harvest index and P acquisition efficiency, but a significantly lower shoot and root DW than HD. The interaction between water treatments and P rates had significant effects on leaf and stem P concentration. Cultivar ZH had significantly lower P partitioning to leaves and stems but significantly higher P partitioning to seeds than HD. The seed yield was positively correlated with leaf and seed P accumulations and P acquisition efficiency under WS. We conclude that (1) adequate water supply improved the P mobilization from leaves and stems at maturity, which may have improved the seed yield; and (2) the high P acquisition efficiency is coordination to high P partition to seeds to produce a high seed yield under water- and P-limited conditions.

Download Full-text

Interference and Seed Production by Common Lambsquarters (Chenopodium album) in Soybeans (Glycine max)

Weed Science ◽

10.1017/s004317450005623x ◽

1990 ◽

Vol 38 (2) ◽

pp. 113-118 ◽

Cited By ~ 40

Author(s):

S. Kent Harrison

Keyword(s):

Seed Production ◽

Seed Yield ◽

Chenopodium Album ◽

Soybean Seed ◽

Dry Weight ◽

Threshold Level ◽

Yield Reduction ◽

Significant Treatment ◽

Weed Biomass ◽

Common Lambsquarters

Multiple regression and response surface plots were used to analyze the effects of common lambsquarters population density and interference duration on weed growth and soybean seed yield. Under favorable growing conditions in 1986, weed biomass production at all population densities and interference durations was four to five times that produced in 1987, under less favorable conditions. However, there was no significant treatment by year interaction for soybean seed yield reduction by common lambsquarters, and production of each kg/ha weed biomass resulted in an average soybean yield reduction of 0.26 kg/ha. Utilizing 5% yield loss as an arbitrary threshold level, the regression equation predicted a common lambsquarters density threshold of 2 plants/m of row for 5 weeks of interference after crop emergence and 1 plant/m of row for 7 weeks. Seed production by individual common lambsquarters plants was highly correlated (r=0.92) with weed dry weight, and seed production ranged from 30 000 to 176 000 seeds/plant.

Download Full-text

Soybean Seed Yield and Quality as a Response to Field Pennycress Residue

Crop Science ◽

10.2135/cropsci2012.03.0192 ◽

2012 ◽

Vol 52 (6) ◽

pp. 2767-2773 ◽

Cited By ~ 35

Author(s):

Winthrop B. Phippen ◽

Mary E. Phippen

Keyword(s):

Seed Yield ◽

Soybean Seed ◽

Yield And Quality ◽

Field Pennycress

Download Full-text

The SCREENING OF HERBICIDES FOR EFFECTIVE CONTROL OF WEEDS IN SOYBEAN (Glycine max L.)

JOURNAL OF WEED SCIENCE RESEARCH ◽

10.28941/pjwsr.v26i3.862 ◽

2020 ◽

Vol 27 (2) ◽

pp. 251-266

Author(s):

Muhammad Ehsan Safdar ◽

Muhammad Ather Nadeem ◽

Abdul Rehman ◽

Amjed Ali ◽

Nasir Iqbal ◽

...

Keyword(s):

Seed Yield ◽

Soybean Seed ◽

Dry Weight ◽

Yield Component ◽

Effective Control ◽

College Of Agriculture ◽

Glycine Max L ◽

Relationship Of ◽

Moderate Relationship ◽

100 Seed Weight

Little is known about best herbicidal weed option for weed eradication in soybean in agro-climatic circumstances of Sargodha, Punjab, Pakistan. A two year field study was accomplished at College of Agriculture experimental site Sargodha in spring seasons of 2018 and 2019 to evaluate the efficacy of different herbicides adjacent to major weeds present in soybean. The study consisted of 8 herbicide treatments including two pre-emergence herbicides (pendimethalin at 489.1 g a.i. ha-1, pendimethalin + S-metolachlor at 731.1 g a.i. ha-1) which are applied immediately after sowing and six post-emergence herbicides (oxyfluorfen at 237.1 g a.i. ha-1, metribuzin at 518.7 g a.i. ha-1, quizalofop-p-ethyl at 148.2 g a.i. ha-1, acetochlor at 741 g a.i. ha-1, halosulfuron at 37 g a.i. ha-1and topramezone at 21.5 g a.iha-1) which were used 25 days subsequent to sowing. In contrast to control, all herbicides have shown significant decline in weed density (up to 94%) and dry weight (up to 88%); and caused significant increases in plant height (up to 85%), pod bearing branches (up to 77%), number of pods per plant (up to 83%), 100-seed weight (up to 37%) and seed yield (up to 160%) of soybean. Among herbicides, topramezone at 21.5 g a.i ha-1 gave significantly the highest (1234 and 1272 kg ha-1 in the year 2018 and 2019) seed yield of soybean and HEIs (1.28 and 1.03 in year 2018 and 2019, respectively). However, oxyfluorfen at 237.1 g a.i. ha-1, pendimethalin + S-metolachlor at 731.1 g a.i. ha-1, pendimethalin at 489.1 g a.i. ha-1, quizalofop-p-ethyl at 148.2 g a.i.ha-1 followed it. The regression analysis depicted a significant negative moderate relationship of soybean seed yield with weed dry weight (R2 = 0.7074), and pods per plant (R2 = 0.7012) was proved to be the main yield component responsible for higher yield of soybean.

Download Full-text