High phosphorus concentrations in seed of wheat and annual medic are related to higher rates of dry matter production of seedlings and plants

Bolland, Mike; Baker, MJ

doi:10.1071/ea9880765

Cited by 58 publications

(42 citation statements)

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“…Under greenhouse conditions, wheat grown from seed of the same size but with increasing P concentrations (1.4 to 3.7 g P kg -1 ) produced higher dry matter yields up to 35 d after sowing (Bolland and Baker 1988). A similar effect occurred with medic (Medicago polymorpha), where the seed concentration ranged from 3.3 to 7.9 g P kg -1 .…”

Section: Phosphorus Concentration In Seedsupporting

confidence: 51%

“…A similar effect occurred with medic (Medicago polymorpha), where the seed concentration ranged from 3.3 to 7.9 g P kg -1 . In the field, the increases in wheat dry matter yield persisted until 67 d after sowing (Bolland and Baker 1988). In wheat, shoot dry mass for the first 3 wk of growth increased with increasing seed mass, P concentration and P content (Derrick and Ryan 1999).…”

Section: Phosphorus Concentration In Seedmentioning

confidence: 95%

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The importance of early season phosphorus nutrition

Grant¹,

Flaten²,

Tomasiewicz³

et al. 2001

Can. J. Plant Sci.

425

300

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. 2001. The importance of early season phosphorus nutrition. Can. J. Plant Sci. 81: 211-224. A review of studies conducted in a range of plant species indicated the importance of an adequate supply of P during early crop growth and outlined plant adaptations for accessing early season P. Potential implications of the requirement for early season P in the development of management practices to optimize P supply for crop production were also discussed. Phosphorus plays a critical role in energy reactions in the plant. Deficits can influence essentially all energy requiring processes in plant metabolism. Phosphorus stress early in the growing season can restrict crop growth, which can carry through to reduce final crop yield. Deficiencies during early growth generally have a greater negative influence on crop productivity than P restrictions imposed later in growth. Plants respond to P deficiencies by adaptations that increase the likelihood of producing some viable seed. The adaptations increase the ability of the plant to access and accumulate P and include modification of rhizosphere pH, diversion of resources to root production, increased root proliferation in high-P regions, and formation of associations with vesicular arbuscular mycorrhizae. Plants differ in strategies adopted and in efficiency of P absorption.Effective nutrient management for optimal crop production must ensure that P is supplied to the crop in adequate amounts early in the growing season. It is important that we develop methods to accurately predict the early season P supply from the soil, in order to avoid either over-fertilization or crop deficiencies. Practices to provide adequate P early in plant growth include placement of P fertilizer in or near the seed-row and maintenance of adequate concentrations of plant-available P in the soil through a long-term nutrient management strategy. Other possible management practices could include enhancement of seed concentrations of P, manipulation of tillage system and crop sequence, improved activity of mycorrhizae and other microbiological agents such as Penicillium bilaii to increase phytoavailability of soil P, or genetic selection of crops with an enhanced ability for early season uptake of P from both soil and fertilizer sources. As plants differ in relative abilities to access P from the soil and fertilizer applications, nutrient management must be tailored to the specific crop, in order to optimize P supply and crop productivity. By restricting fertilizer applications to situations where P supply is limiting to crop production and by use of effective P management practices, we can optimize the economic of fertilizer use while avoiding negative impacts on environmental quality. Une analyse des recherches effectuées sur diverses espèces végétales révèle l'importance d'un apport suffisant de phosphore au début de la période végétative et montre comment les plantes s'adaptent pour trouver le phosphore (P) dont elles ont besoin. Les auteurs ont aussi examiné les conséquences éventuelles de cette...

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Section: Phosphorus Concentration In Seedsupporting

confidence: 51%

Section: Phosphorus Concentration In Seedmentioning

confidence: 95%

The importance of early season phosphorus nutrition

Grant¹,

Flaten²,

Tomasiewicz³

et al. 2001

Can. J. Plant Sci.

425

300

View full text Add to dashboard Cite

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“…Resultados com trigo (Triticum aestivum L.) (Bolland & Baker, 1988;De Marco, 1990), tremoço (Thomson et al, 1991), leguminosas forrageiras (Bolland & Paynter, 1990) e feijoeiro ) também fornecem evidências de que os efeitos do maior teor de P da semente no estímulo ao crescimento da parte aérea diminuem com a maior disponibilidade de P no solo. Este maior crescimento de plantas de feijoeiro, acarretado pelas sementes com alto teor de P, manteve-se durante todo o estádio vegetativo, como observado em tremoço (Thomson et al, 1991).…”

Section: Resultsunclassified

Efeitos do aumento do teor de fósforo na semente, obtido via adubação foliar, no crescimento e na nodulação do feijoeiro

Araújo

Teixeira

Lima³

2002

Rev. Bras. Ciênc. Solo

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RESUMOSementes de feijoeiro (Phaseolus vulgaris L.) com alto teor de P, obtidas de plantas que receberam adubação foliar, foram utilizadas em um experimento em casa de vegetação para avaliar os efeitos do teor de P na semente, no crescimento e na nodulação do feijoeiro no estádio vegetativo. O experimento tinha arranjo fatorial 2 x 2 x 3 x 3 em blocos ao acaso com quatro repetições: dois cultivares (Carioca e Rio Tibagi), dois teores de P na semente (baixo e alto, correspondentes a 4,3 e 5,6 mg g -1 , em Carioca, e 4,8 e 6,3 mg g -1 , em Rio Tibagi), três doses de P aplicado ao solo (0, 30 e 60 mg kg -1 , respectivamente, P 0 , P 30 e P 60 ) e três épocas de coleta (20, 30 e 40 dias após emergência -DAE). O alto teor de P na semente aumentou a matéria seca das plantas de feijoeiro em P 0 nas três coletas, e em P 30 , aos 40 DAE. Plantas originadas de sementes com alto teor de P mostraram menor dependência do suprimento de P no solo, quanto à produção de matéria seca, do que aquelas oriundas de sementes com baixo P. O alto teor de P na semente aumentou o número de nódulos em Carioca em P 0 , aos 20 e 30 DAE, e aumentou a massa de nódulos em P 30 , aos 20 DAE nos dois cultivares e, aos 40 DAE, em P 30 em Carioca e em P 60 em Rio Tibagi. A acumulação de N na parte aérea aos 20 DAE foi superior nas plantas originadas de sementes com alto teor de P. Segundo os resultados, sementes com alto teor de P obtido via adubação foliar podem aumentar o crescimento, a nodulação e a acumulação de N do feijoeiro em estádios iniciais de crescimento, particularmente sob baixas doses de P aplicado ao solo.Termos de indexação: feijão, nitrogênio, Phaseolus vulgaris, raiz.

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“…Grain P is a valuable source of this nutrient for humans and animals. The additional benefit of high P contents in grain is a possibility of obtaining higher grain yields with better germination capability, which is particularly important in reproduction of sowing material (Bolland, and Baker 1988;Manske, et al 2001;De-Marco, 1990). A decrease of P contents results in reduction of grain anti-nutritional factors such as phytic acid Batten (1986).…”

Section: Methodsmentioning

confidence: 99%

Effects of different phosphorus and potassium fertilization on contents and uptake of macronutrients (N, P, K, Ca, Mg) in winter wheat I. Content of macronutrients

Gaj¹,

Rębarz²

2014

JCEA

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The aim of the study carried out under field conditions was to evaluate the effect of differentiated phosphorus and potassium fertilization level on nutritional status of winter wheat at stem elongation (BBCH 31) and flowering (BBCH 65) development stages as well as on macronutrient contents in yield obtained (grain and straw). The research was conducted in 2007-2010, within an individual agricultural holding, on lessive soil with medium and high richness in potassium and phosphorus, respectively. The contents of nitrogen, phosphorus, potassium, magnesium and calcium in wheat changed depending on the organ assessed and plant development stage. At BBCH 31, regardless fertilization level, the plants observed were malnourished with potassium, phosphorus and calcium and at the control site -also with nitrogen. Furthermore, there were found significant correlation relationships among the contents of nutrient pairs: nitrogen-potassium, nitrogen-phosphorus, nitrogen-magnesium and nitrogen-calcium. The content of nitrogen in wheat grain and straw differed mainly due to weather conditions during the study. Irrespective of the years of observation, differentiated rates of P and K applied had no significant effect on N accumulation in wheat at full ripening stage. In contrast to nitrogen, the level of P and K fertilization significantly differentiated the contents of phosphorus, potassium and magnesium in wheat grain and straw. In case of calcium, the effect of fertilization factor was indicated only as regards the content of this nutrient in grain. początku strzelania w źdźbło (BBCH31) i kwitnienia (BBCH65) oraz zawartość makroskładników w ziarnie i w słomie pszenicy ozimej. Doświadczenie przeprowadzono w latach 2007-2010 w indywidualnym gospodarstwie rolnym, na glebie płowej o średniej zasobności w potas i wysokiej w fosfor. Zawartości azotu, fosforu, potasu, magnezu i wapnia w pszenicy zmieniały się w zależności od organu rośliny oraz fazy rozwojowej. Niezależnie od poziomu nawożenia mineralnego w fazie BBCH 31 rośliny były niedożywione potasem, fosforem, wapniem, a w stanowisku kontrolnym dodatkowo azotem. Ponadto stwierdzono istotne zależności korelacyjne pomiędzy zawartościami analizowanych par składników: azot -potas, azot -fosfor, azot -magnez oraz azot -wapń. Zawartość azotu w ziarnie i w słomie pszenicy ozimej była zróżnicowana głównie warunkami pogodowymi w latach badań. Zróżnicowane dawki P i K niezależnie od roku badań nie miały również istotnego wpływu na akumulację N w fazie dojrzałości pełnej. W odróżnieniu od azotu, poziom nawożenia mineralnego P i K istotnie różnicował zawartość fosforu, potasu i magnezu w ziarnie i słomie pszenicy. W przypadku zawartości wapnia działanie czynnika nawozowego zaznaczyło się tylko w odniesieniu do zawartości składnika w ziarnie.Słowa kluczowe: zawartość makroskładników, stan odżywienia, dawki fosforu i potasu, pszenica ozima Streszczenie szczegółowe Jednym z podstawowych czynników ograniczających potencjał plonowania pszenicy ozimej jest stan odżywienia roślin w faz...

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High phosphorus concentrations in seed of wheat and annual medic are related to higher rates of dry matter production of seedlings and plants

Cited by 58 publications

References 0 publications

The importance of early season phosphorus nutrition

The importance of early season phosphorus nutrition

Efeitos do aumento do teor de fósforo na semente, obtido via adubação foliar, no crescimento e na nodulação do feijoeiro

Effects of different phosphorus and potassium fertilization on contents and uptake of macronutrients (N, P, K, Ca, Mg) in winter wheat I. Content of macronutrients

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