Performance of soybean plants as function of seed size: II. Nutritional stress

Soares, Marcos Morais; Oliveira, Glauter Lima; Soriano, Paulo Emídio; Sekita, Marcelo Coelho; Sediyama, Tuneo

doi:10.1590/s2317-15372013000400002

Cited by 12 publications

(10 citation statements)

References 11 publications

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“…If the raw materials are limited, the process can not perform normally. The grain size decreases when soybean grown in a soil with low fertility, especially in low phosphorus (Soares et al, 2013). Presumably, phosphorus in Entisols-Inceptisols was lower than Vertisols because soil parent material of Entisols-Inceptisols in Jambegede Research Station is originated from volcanic material.…”

Section: Discussionmentioning

confidence: 99%

Response of Acid-Adaptive Soybean Genotypes Grown in Associated Entisols-Inceptisols and Vertisols Soil Types

Kuswantoro¹

2015

International J. of Soil Science

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Response of plant grown on different soil types will be different depending on the nature of the soil. Acid-adaptive soybean genotypes that normally grown in Ultisols, may have higher yield potential when grown in optimal soil types such as associated Entisols-Inceptisols and Vertisols. A total of 10 soybean (Glycine max (L.) Merrill) genotypes, consisted of nine acid-adaptive soybean genotypes and one released variety (Tanggamus/G10), were grown on both locations. A randomized complete blocks design with three replications was applied in this study. Results showed that interaction between the genotypes and the environments was found on five characters of seven observed characters. The check variety Tanggamus that released as acid-adaptive soybean variety showed the highest grain yield in both soil types indicating that Tanggamus is potential to be grown in Vertisols and associated Entisols-Inceptisols soil types. Shrink-swell in Vertisols might lead detrimental effect on soybean roots and caused growth and developing restriction. Consequently, grain yield in Vertisols was lower than in associated Entisols-Inceptisols. However, there were three genotypes with higher grain yield in Vertisols than in associated Entisols-Inceptisols, i.e., G2 (Tgm/Anj-833), G5 (Tgm/Anj-846) and G6 (Tgm/Anj-847).

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Section: Discussionmentioning

confidence: 99%

Response of Acid-Adaptive Soybean Genotypes Grown in Associated Entisols-Inceptisols and Vertisols Soil Types

Kuswantoro¹

2015

International J. of Soil Science

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“…Adequate availability of light, temperature, water and nutrients during the period of performance determination, between the start of the pod formation (R3) and full green grain (R6) guarantees a high number of grains per plant [48,50,51,52,53]. It should be remembered that the plasticity in the number of grains per pod in soybeans is very low between 2.1-2.5 seed/pod [54,55,56], same with different cultural practices [57,58,59]. Thus, the number of grains per pod of soybeans can be less sensitive to stress compared to the number of pods.…”

Section: Yield Component Basismentioning

confidence: 99%

“…The reduction in the number of branches observed in sensible cultivars under high competition among plants promoted by the higher CO 2 concentration can inhibit the axillary buds ontogeny in early vegetative stages [34,55]. There is a need for further studies to elucidate the mechanisms of inhibition of branch ontogeny, and how early foliar self-shading can influence the ontogeny of branches and the number of its internodes.…”

Section: Changes In Plant Height Branches and Racemesmentioning

confidence: 99%

Yield Components and Biomass Partition in Soybean: Climate Change Vision

Pereira-Flores¹,

Justino²

2019

Soybean - Biomass, Yield and Productivity

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Long-term climate change and inter-annual climate variability are events of concern to farmers and humanity. Global warming could affect agriculture in various ways and it is anticipated that agricultural systems will face great pressure from the variability of climate factors and their extreme events, which in most cases are difficult to predict, particularly extreme events of rainfall, higher dry season, hot and cold waves and their interactions. Global warming could also have some positive effects for plants such as increasing the temperature of current cold regions and increasing carbon dioxide with its positive effect on photosynthesis, growth rates, the use of water and production. Meanwhile, there are still many questions that remain about this possible future. This chapter, brings the response of plants to future conditions through specifics alterations in its components of yield on environmental conditions with enrichment of CO 2 and elevated temperature, two climatic factors, which is understood to be the factors of climatic change of greater global extent. The study of the components of yield and their alterations, can guide diverse sectors of the sciences and decision makers, in order to structure strategies of resilience in the cultivation of soybean. 2 level. This anticipated knowledge may be important for the direction of policies and research lines in various areas of agricultural sciences to develop diverse resilience strategies to climate change.The understanding of how climate influences the growth, development and production of soybean plants depends on the understanding of how the yield components respond to the variations of climate factors, which can also be elucidated if studies the plant alterations in the future atmosphere conditions. The plant production is determined by changes in yield components, in last instance. The artificial enrichment of the growth environment of soybean plants with CO 2 , O 3 and temperatures according to the forecasts on the atmospheric composition for the year 2100, can allow to know the morphophysiological responses in several levels of the plant organization, long before environmental changes occur.The study of the morphophysiological mechanisms of response of soybean plants to the ecological environment where they develop and produce grains, constitutes the basis of soybean ecophysiology.The factors of the climate (temperature, radiation, rainfall, wind and atmospheric pressure, among others), plus the physicochemical properties of the soil and the cultural practices applied in the field continuously influence the performance of the community of soya plants from germination to the senescence of the plants. Throughout the different phenological stages, the expression of stage-tissue genes defines the course of the development of the plant, the formation of the biomass and its components (roots, stems, leaves, flowers, fruits and seeds) respond simultaneously and hierarchically with the objective of completing its biological cycle and producing seeds for the...

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“…However, some studies have reported divergent results, in which the influence of seed size on yield components (SOARES et al, 2013), seed oil and protein content, and productivity was observed (MOURTZINIS et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Size, physiological quality, and green seed occurrence influenced by seeding rate in soybeans

Ferreira

Zucareli

Balbinot

et al. 2017

SCA

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The seeding rate influences the intraspecific competition, which might affect the development and quality of seeds in soybean. However, the impact of seeding rate on the physical and physiological qualities of soybean seeds needs to be better elucidated. This study aimed to evaluate the effects of soybean plant density on the seed size as well as the effects of the interaction between the plant density and seed size on the seed mass, green seed occurence, and physiological seed quality. The experiments were carried out in the growing seasons of the years 2013/14 and 2014/15 in a Latossolo Vermelho distroférrico, under a randomized complete block design, using the NK 7059 RR cultivar with six replications. Four plant densities (150, 300, 440, and 560 thousand viable seeds ha -1 ) were evaluated. After the classification of seeds into four sizes, using a set of sieves, a 4 ×4 factorial scheme was used for the statistical analysis of the four plant densities and four seed sizes. The seed samples were evaluated for the seed mass, green seed percentage, germination, and vigor. Under thermal and water stress during seed development, an increase in the seeding rate led to a reduction in the green seed occurrence and an increase in the seed size and mass. However, in the absence of thermal and water stress, the seed size and mass were not altered by the seeding rate and, there was no occurrence of green seeds. Key words: Plant density. Chlorophyll retention. Green seeds. Seed vigor. ResumoA densidade de semeadura, por influenciar na competição intraespecífica, pode afetar o desenvolvimento e a qualidade das sementes de soja produzidas. Entretanto, o impacto da densidade de semeadura sobre a qualidade física e fisiológica das sementes de soja precisa ser melhor elucidado. Objetivou-se avaliar os efeitos da densidade de semeadura sobre o tamanho das sementes produzidas e a interação entre a densidade de semeadura e o tamanho das sementes sobre a massa, a ocorrência de sementes verdes e a qualidade fisiológica das mesmas. O experimento foi conduzido nas safras 2013/14 e 2014/15, em um Latossolo Vermelho distroférrico, sob o delineamento de blocos casualizados, utilizando-se a cultivar NK7059 RR, com seis repetições. Os tratamentos consistiram de quatro densidades de semeadura (150, 300, 440 e 560 mil sementes viáveis ha -1 ). Após a classificação em peneiras das sementes produzidas, adotou-se o esquema fatorial 4 x 4, com 4 densidades e 4 tamanhos de sementes. Avaliaram-se a massa de mil sementes, porcentagem de sementes verdes, germinação e vigor. O aumento na densidade de

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Performance of soybean plants as function of seed size: II. Nutritional stress

Cited by 12 publications

References 11 publications

Response of Acid-Adaptive Soybean Genotypes Grown in Associated Entisols-Inceptisols and Vertisols Soil Types

Response of Acid-Adaptive Soybean Genotypes Grown in Associated Entisols-Inceptisols and Vertisols Soil Types

Yield Components and Biomass Partition in Soybean: Climate Change Vision

Size, physiological quality, and green seed occurrence influenced by seeding rate in soybeans

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