Induction of Tomato Stem and Leaf Lesions, and Potassium Deficiency, by Excessive Ammonium Nutrition

Barker, Allen V.; Maynard, Donald N.; Lachman, W. H.

doi:10.1097/00010694-196705000-00003

Cited by 77 publications

(39 citation statements)

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“…The effects of K + in the short-term suppression of NH 3 /NH 4 + influx and efflux (Szczerba et al, 2008;Balkos et al, 2010; see also Fig. 4) (Barker et al, 1967;Szczerba et al, 2008;Balkos et al, 2010) and thus pave the way for future studies.…”

Section: Discussionmentioning

confidence: 94%

“…Importantly, the model reveals that a hyperaccumulation of NH 4 + in the vacuole would ultimately exist (Fig. 5), due to vacuolar acid trapping, and could explain the frequently observed suppressions in cationic nutrients, notably K + (but also Ca 2+ and Mg 2+ ; Barker et al, 1967;Van Beusichem et al, 1988;Lang and Kaiser, 1994;Kronzucker et al, 2003), which may ultimately be the major cause of NH 3 /NH 4 + toxicity in higher plants.…”

Section: Discussionmentioning

confidence: 95%

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Rapid Ammonia Gas Transport Accounts for Futile Transmembrane Cycling under NH3/NH4 + Toxicity in Plant Roots

et al. 2013

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 95%

Rapid Ammonia Gas Transport Accounts for Futile Transmembrane Cycling under NH3/NH4 + Toxicity in Plant Roots

et al. 2013

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“…Th -rt has been reported that K deficiency magnified ammonium toxicity symptoms (1,3) and also caused toxicity due to accumulation of amines (6). it is not known whether P and K deficiencies relate directly to the development of ammonium toxicity symptoms or if these elements are involved in the process of detoxication of ammonium within the plant.…”

Section: Introductionmentioning

confidence: 99%

Effect of N Source, and Rate of N, P and K on the Ammonium, Amino, and Amide Nitrogen Levels in Vegetative Tissue of Barley Grown in Hydroponic Culture

Suzuki¹,

MacLeod²

1970

Can. J. Plant Sci.

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Vegetative tissue of barley (Hordeum dis-N in the tissue, the highest proportion of the tichon L.) cultured on 100-ppm ammonium-water-soluble N fracti5n o."'".frng i. "-i".-N ,contained a high level 6i ammonium-N N. The i""o.porutio" oi ammonia into amideancl showed severe toxicity symptoms and N as a mairi detoxication process failed to markedly-reduced yield, particuiarly when explain th; de;r;ase -oi-am^monium level in assocrated wrth the low (10 ppm) K rate. barley tissue supplied with an increasing rate when K supply -was, increasedio'100 ppm, of K. In gene.al, the effect of p on the amihe ammonium level decreased significantly monium-, amino-, or amide-N level was not although the concentration was rTitt -u"tr as large as that of K. Increising the .ui"-oi higher than that in tissue supplied witri ioo p f;;;-ro t. lbo pp-iauseo an increase in ppm of N from either ammonium-nitrate or the ammonium co'n-centratio" i" piu"ir

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“…Em plantas de tomate, de acordo com BARKER et al (1967), houve redução nos níveis de nitrogênio com o aumento da concentração de potássio no tecido foliar. À medida que não apresenta interação, estudos mais aprofundados tornam-se necessários para que se previna a incidência de pseudoperfilhamento, por um possível controle exercido pelo potássio sobre a excessiva absorção de nitrogênio.…”

Section: Variação Nas Doses De K No Plantio E N Em Cobertura -Experimunclassified

Produção de bulbos e incidência de pseudoperfilhamento na cultura do alho vernalizado em função de adubações potássicas e nitrogenadas

et al. 2002

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LEONARDO THEODORO BÜLL (2,3) ; ROSEMARY MARQUES DE ALMEIDA BERTANI (2) ; ROBERTO LYRA VILLAS BÔAS (2) ; DIRCEU MAXIMINO FERNANDES (2) RESUMOCom o objetivo de estudar a influência da interação N x K na cultura do alho (Allium sativum L.) vernalizado, instalaram-se dois experimentos em casa de vegetação telada, em vasos retangulares de cimento-amianto contendo 50 kg de terra da camada arável em Latossolo Vermelho-Escuro Álico, textura média. Ambos os experimentos constituíram fatorial 4 x 4. Em 1993, estudaram-se quatro níveis de potássio no plantio (original, 4%, 8% e 16% da CTC) e quatro níveis de nitrogênio em cobertura (40, 80, 160 e 320 kg.ha -1 ) aplicados em duas parcelas, metade aos 30 dias e metade aos 50 dias após a emergência (DAE). O experimento de 1994 compreendeu quatro níveis de potássio e os mesmos quatro níveis de nitrogênio, ambos aplicados parcelados em cobertura, mantendo-se constante o nível de potássio aplicado no plantio. Aos 70 DAE coletaram-se duas plantas de cada vaso para diagnose foliar. Os resultados indicaram redução na concentração foliar de nitrogênio pela adubação potássica, tanto no plantio quanto na cobertura, havendo, entretanto, aumento nos teores de potássio com a concentração de nitrogênio no tecido; aumento na concentração de clorofila com os níveis de potássio no tecido foliar, em virtude de variações nas doses de fertilizante potássico aplicado no plantio e com as doses de nitrogênio em cobertura; favorecimento das elevações nas doses da adubação nitrogenada em cobertura na incidência de pseudoperfilhamento na cultura, que não foi influenciada pela adubação potássica no plantio ou em cobertura; aumento na produção de bulbos com adubação nitrogenada em cobertura. Palavras-chave: Allium sativum L., alho vernalizado, pseudoperfilhamento, adubação potássica, adubação nitrogenada. ABSTRACT BULB YIELD AND PSEUDOGROWING INCIDENCE OF VERNALIZATED GARLIC AS INFLUENCED BY POTASSIC AND NITROGEN FERTILIZATIONTwo experiments were carried out under greenhouse conditions, with the objective of studying the influence of N x K interaction on vernalizated garlic (Allium sativum L.) grown in 50 kg pots. Both experiments were in factorial 4 x 4: (a) one in 1993 with four potassium levels in the sowing (original, 4%, 8% and 16% of CEC) and four levels of nitrogen in covering (40, 80, 160 and 320 kg.ha -1 ) applied half at 30 and the remaining at 50 days after seed emergency (DAE); (b) the other in 1994, with four potassium levels and four nitrogen levels, both splitted and applied in covering. At 70 DAE two plants per pot were collected for nutritional diagnosis. The results indicated that the leaf concentration of nitrogen was slightly reduced by K fertilization applied in the sowing or in covering. However, there were increases in the potassium concentration with the nitrogen concentration in the leaves; the chlorophyll concentration increased with the potassium levels in the leaves, because of variations in K fertilizer rates applied in the sowing, and with the nitrogen rates in cove...

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Induction of Tomato Stem and Leaf Lesions, and Potassium Deficiency, by Excessive Ammonium Nutrition

Cited by 77 publications

References 0 publications

Rapid Ammonia Gas Transport Accounts for Futile Transmembrane Cycling under NH3/NH4 + Toxicity in Plant Roots

Rapid Ammonia Gas Transport Accounts for Futile Transmembrane Cycling under NH3/NH4 + Toxicity in Plant Roots

Effect of N Source, and Rate of N, P and K on the Ammonium, Amino, and Amide Nitrogen Levels in Vegetative Tissue of Barley Grown in Hydroponic Culture

Produção de bulbos e incidência de pseudoperfilhamento na cultura do alho vernalizado em função de adubações potássicas e nitrogenadas

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