New and Old Soybean Cultivar Responses to Plant Density and Intercepted Light

Crop Science ◽  
2009 ◽  
Vol 49 (6) ◽  
pp. 2225-2232 ◽  
Author(s):  
Jason L. De Bruin ◽  
Palle Pedersen
Keyword(s):  
Plant Density ◽  
Soybean Cultivar ◽  
Cultivar Responses

Evaluating Methods for Simulating Soybean Cultivar Responses Using Cross Validation

2000 ◽  
Vol 92 (6) ◽  
pp. 1140-1149 ◽  
Author(s):  
Ayse Irmak ◽  
James W. Jones ◽  
Theodoros Mavromatis ◽  
Stephen M. Welch ◽  
Kenneth J. Boote ◽  
...  
Keyword(s):  
Cross Validation ◽  
Soybean Cultivar ◽  
Cultivar Responses ◽  
Evaluating Methods

scholarly journals High-protein soybean cultivar Greya

2020 ◽  
Vol 184 (4) ◽  
pp. 91-95
Author(s):  
S.V. Zelentsov ◽  
◽  
E.V. Moshnenko ◽  
E.N. Budnikov ◽  
M.V. Trunova ◽  
...  
Keyword(s):  
Plant Density ◽  
Soil Surface ◽  
High Protein ◽  
Soybean Cultivar ◽  
Hybrid Population ◽  
Protein Accumulation ◽  
North Caucasus ◽  
The North ◽  
Standard Cultivar ◽  
Variety Testing

The high-protein soybean cultivar Greya was developed by individual selection from the hybrid population F4 Vilana × Valenta based on a lipid-degrading model of protein accumulation in seeds. According to the results of preliminary and competitive variety testing, the productivity of the high-protein soybean cultivar Greya varied from 1.75 to 2.93 t/ha. The average yield of the new cultivar over four years of variety testing was 2.23 t/ha, which, on average, was 0.71 t/ha higher than the high-protein standard cultivar of the lipid-degrading biotype, and did not significantly differ (-0.09 t/ha) from the high-yielding medium-protein standard cultivar. The height of plants varies from 82 to 98 cm. Under the optimal plant density, the lower pods are located at the height of 15–17 cm from the soil surface. The pubescence is gray. The color of the beans is light brown. The color of the corolla is violet. The seed coat is yellow. The plants of the new cultivar are resistant to lodging and bean shattering. Under optimal cultivation conditions and the presence of mineral or bacterial nitrogen in the soil, up to 46.3 % of protein is accumulated in the seeds of the cultivar Greya. The oil content in the seeds of the cultivar Greya is lower than that of the medium-protein standard, by an average of 2.1 %, which is typical for high-protein cultivars of the lipiddegrading biotype. The growth season of the new cultivar at the latitude of Krasnodar (45°), depending on the meteorological conditions of the year, varied from 108 to 117 days, and on average, for the period of 2017–2020 it was 112 days. Therefore, it can be cultivated as the main crop in soybean-producing farms in the North Caucasus, Lower Volga and Far Eastern regions of the Russian Federation.

Corn Row Spacing, Plant Density, and Maturity Effects

2003 ◽  
Author(s):  
Kenneth T. Pecinovsky ◽  
Garren O. Benson ◽  
Dale E. Farnham
Keyword(s):  
Plant Density ◽  
Row Spacing

YIELD OF CORN HYBRIDS DEPENDING ON PLANT DENSITY AND FERTILIZATION SYSTEMS

2020 ◽  
Author(s):  
V. Polyakov ◽  
Keyword(s):  
Grain Yield ◽  
Plant Density ◽  
Growing Season ◽  
Research Field ◽  
Forest Steppe ◽  
Corn Yield ◽  
Field Calculation ◽  
Corn Hybrids ◽  
Maize Hybrid ◽  
Fertilizer System

The article presents the results of research on the formation of corn yield for grain depending on the elements of cultivation technology in the Forest-Steppe of Ukraine. The goal of the research was to identify the influence of plant density and fertilizer system on the yield of corn hybrids for grain. The research was conducted during 2017-2019 in the research field of Bila Tserkva National Agrarian University (Bila Tserkva NAU). Research methods: field, calculation and statistical. Results. Regularities of growth, development and formation of yield by plants are revealed, both in concrete conditions of years of researches, and taking into account average long-term values taking into account features of hybrid-oriented technology. According to the results of the experiment it was recorded that the maximum yields for growing early-maturing maize hybrid DN PIVYHA with FAO 180 in general were obtained at a pre-harvest density of 75 thousand units/ha and the use of combined organo-mineral fertilizer system - 11.09 t/ha; medium-early maize hybrid DN ORLYK, FAO 280 in general in the experiment provided a grain yield of 9.60 t/ha, and in terms of 2017 - 7.86 t/ha, in 2018 - 11.22 t/ha and in 2019 - 9, 72 t/ha, but the medium-ripe hybrid of corn DN SARMAT, FAO 380 provided a grain yield of 10.81 t/ha, and in the context of 2017 - 9.31 t/ha, in 2018 - 11.68 t/ha and in 2019 - 11.44 t/ha. Significant influence on the formation of the yield of corn has a hybrid factor (27 %), fertilizer system determines the level of productivity by 21 % and interacts closely with the conditions of the growing season (factor BV 9 %), growing season conditions also determine the level of productivity of corn plants (19 %), and the pre-harvest density determines this feature by 18 %. Conclusions: In the conditions of the Right Bank part of the Forest-Steppe of Ukraine there is an increase in the level of productivity of maize hybrids from early to medium-ripe hybrids, regardless of the influence of other experimental factors.

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