A Method of Measuring the Volume of Small Root Systems<sup>1</sup>

Pinkas, Leonard L. H.; Teel, Merle R.; Swartzendruber, D.

doi:10.2134/agronj1964.00021962005600010030x

Cited by 10 publications

(5 citation statements)

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“…The rc• maining three plants of each variety were harvested 12 days lal er at the termination of the treatment period. The volume of fresh roots was measured by the displacement of water (10). Root surface areas were estimated by the gravimetric method of Carley and Watson 2, which is based on the absorption of a 6 N Ca (NO,h solution proportional to the surface area of roots.…”

Section: Nutrient Solution Culture Experimentsmentioning

confidence: 99%

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces¹

Raper¹,

Barber²

1970

Agronomy Journal

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‘Aoda’ and ‘Harosoy 63’ soybeans [Glycine max (L.) Merr.], representing extremes in gross root morphology, were used in field and growth chamber experiments to study the influence of physiological characteristics of soybean roots on the absorption of nutrients. The efficiency of K uptake per unit root surface was found to be dependent on the variety and the solution concentration of K. The rate of K uptake per unit root surface, or K absorption potential, for Aoda roots was almost double that of Harosoy 63 roots at high levels of K but was nearly equal at low levels. The effect of K concentration on absorption potentials in nutrient solution was independent of concurrent variation of other nutrientions or total growth rate of the plants.

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Section: Nutrient Solution Culture Experimentsmentioning

confidence: 99%

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces¹

Raper¹,

Barber²

1970

Agronomy Journal

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“…tanto das raízes como da parte aérea, e volume das raízes (16). Adotou-se também o comprimento da raiz principal, como comprimento de raízes.…”

Section: Methodsunclassified

“…Variações acentuadas já foram constatadas em diferentes cultivares quanto a essa característica (7,11,13,15,16), a qual parece ser também influenciada por diferentes tipos de solos (6, 7) ou pelo maior ou menor conteúdo de água no solo (2).…”

Section: Introductionunclassified

Crescimento do sistema radicular e da parte aérea em plantas jovens de cafeeiros

1982

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( 1 ) Trabalho parcialmente financiado pelo Instituto Brasileiro do Café. Recebido para publicação a 3 de outubro de 1980.( 2 ) Com bolsa de suplementação do CNPq. RESUMOOs cultivares Catuaí e Arábica, de Coffea arabica, Guarini, de C. canephora, e Icatu, derivado de um híbrido interespecífico entre essas duas espécies, com dois retrocruzamentos para C. arabica cv Mundo Novo, foram avaliados aos oito e 22 meses após a germinação, quanto ao comprimento e peso seco, tanto das raízes quanto da parte aérea. Aos oito meses de idade, esses dados foram comparados quanto aos efeitos do plantio direto e do transplantio de germinador de areia para sacos plásticos. O volume de raízes foi também analisado em plantas conduzidas em vasos, aos 22 meses de idade. Os cultivares Guarini, Catuaí e Icatu, mais produtivos que o Arábica, mostraram sistema radicular mais desenvolvido. No 'Guarini' e no 'Catuaí', notou-se maior desenvolvimento das raízes laterais em relação à parte aérea, característica de importância para condições hídricas desfavoráveis. Os dados indicaram que o sistema radicular dos cultivares ficou mais bem caracterizado, avaliando-se mudas aos 22 meses após a germinação, com semeadura direta, e utilizando-se recipientes de 10 litros de capacidade.

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“…Atkinson 2000, Bohm (1979), Kemph (1976), Kemp (1972), Marsh (1971), Newman (1966a, Pinkas et al (1964), Reicosky et al (1970), Tennant (1975), Yorke (1968). Specific information is cited in the text.…”

Section: Rooting Parametersmentioning

confidence: 99%

Genetic and environmental effects on rooting ability of dormant unrooted hybrid poplar cuttings

Zalesny¹,

Ronald²

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A Method of Measuring the Volume of Small Root Systems¹

Cited by 10 publications

References 0 publications

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces¹

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces¹

Crescimento do sistema radicular e da parte aérea em plantas jovens de cafeeiros

Genetic and environmental effects on rooting ability of dormant unrooted hybrid poplar cuttings

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A Method of Measuring the Volume of Small Root Systems1

Cited by 10 publications

References 0 publications

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces1

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces1

Crescimento do sistema radicular e da parte aérea em plantas jovens de cafeeiros

Genetic and environmental effects on rooting ability of dormant unrooted hybrid poplar cuttings

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A Method of Measuring the Volume of Small Root Systems¹

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces¹

Rooting System of Soybeans. II. Physiological Effectiveness as Nutrient Absorption Surfaces¹