Root growth response of serradella species to aluminium in solution culture and soil

The root growth of lucerne was examined in an acidic soil profile modified by varying additions of calcium carbonate to different layers of the subsoil. Root growth responded strongly to changes in the concentration of exchangeable soil calcium. Symptoms of thickening, distortion and poor lateral formation occurred under low calcium treatments. The results were in agreement with the interacting effects of calcium (at 0.5–5.0mM) and aluminium ions (at 0–20,µM) on lucerne in separate solution culture experiments. Differences in root penetration were observed between three lucerne clones selected from the cultivars Hunter River and Siro Peruvian. At the first harvest, the magnitude of these differences was increased by the addition of lime to the profiles. The three genotypes produced similar total dry weight yields, but differed in their distribution of growth between shoots and roots. This distribution was not affected by the addition of lime to the subsoil. However, the length of roots in the lower layer of the profile ( > 60 cm depth) was more responsive to subsoil treatment than was total dry weight. At the final harvest, the shoot yields of two genotypes were affected by lime treatments, but that of the deepest-rooted genotype was not. The results suggest that improved genotypes could be selected from Australian lucernes for establishment in areas with acidic subsoils, but that selection on root penetration alone would not necessarily lead to increased shoot yields.

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Potassium in Root Growth and Development

Plants ◽

10.3390/plants8100435 ◽

2019 ◽

Vol 8 (10) ◽

pp. 435 ◽

Cited By ~ 12

Author(s):

Marek Sustr ◽

Ales Soukup ◽

Edita Tylova

Keyword(s):

Root Growth ◽

Membrane Trafficking ◽

Growth Response ◽

Plant Stress ◽

Physiological Role ◽

Mobile Element ◽

Plant Responses ◽

Nitrogen And Phosphorus ◽

Wide Range ◽

K Transport

Potassium is an essential macronutrient that has been partly overshadowed in root science by nitrogen and phosphorus. The current boom in potassium-related studies coincides with an emerging awareness of its importance in plant growth, metabolic functions, stress tolerance, and efficient agriculture. In this review, we summarized recent progress in understanding the role of K+ in root growth, development of root system architecture, cellular functions, and specific plant responses to K+ shortage. K+ transport is crucial for its physiological role. A wide range of K+ transport proteins has developed during evolution and acquired specific functions in plants. There is evidence linking K+ transport with cell expansion, membrane trafficking, auxin homeostasis, cell signaling, and phloem transport. This places K+ among important general regulatory factors of root growth. K+ is a rather mobile element in soil, so the absence of systemic and localized root growth response has been accepted. However, recent research confirms both systemic and localized growth response in Arabidopsis thaliana and highlights K+ uptake as a crucial mechanism for plant stress response. K+-related regulatory mechanisms, K+ transporters, K+ acquisition efficiency, and phenotyping for selection of K+ efficient plants/cultivars are highlighted in this review.

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Differential effects of monomeric and polymeric aluminium on the root growth and on the biomass production of root and shoot of corn in solution culture

European Journal of Agronomy ◽

10.1016/s1161-0301(99)00020-9 ◽

1999 ◽

Vol 11 (2) ◽

pp. 115-122 ◽

Cited By ~ 21

Author(s):

J.J Comin ◽

J Barloy ◽

G Bourrié ◽

F Trolard

Keyword(s):

Root Growth ◽

Biomass Production ◽

Solution Culture ◽

Differential Effects

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Simulation in ecosys of root growth response to contrasting soil water and nitrogen

Ecological Modelling ◽

10.1016/s0304-3800(97)00221-4 ◽

1998 ◽

Vol 107 (2-3) ◽

pp. 237-264 ◽

Cited By ~ 49

Author(s):

R.F. Grant

Keyword(s):

Root Growth ◽

Soil Water ◽

Growth Response

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Dynamics of localised nitrogen supply and relevance for root growth of Vicia faba (‘Fuego’) and Hordeum vulgare (‘Marthe’) in soil

Scientific Reports ◽

10.1038/s41598-020-72140-1 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Sebastian R. G. A. Blaser ◽

Nicolai Koebernick ◽

Oliver Spott ◽

Enrico Thiel ◽

Doris Vetterlein

Keyword(s):

Hordeum Vulgare ◽

Root Growth ◽

Soil Solution ◽

Vicia Faba ◽

Growth Response ◽

Soil Column ◽

Nitrification Inhibitor ◽

Solution Chemistry ◽

Soil Mesocosms ◽

Solution Studies

Abstract Root growth responds to local differences in N-form and concentration. This is known for artificial systems and assumed to be valid in soil. The purpose of this study is to challenge this assumption for soil mesocosms locally supplied with urea with and without nitrification inhibitor. Soil column experiments with Vicia faba (‘Fuego’) and Hordeum vulgare (‘Marthe’) were performed to investigate soil solution chemistry and root growth response of these two species with contrasting root architectures to the different N-supply simultaneously. Root growth was analysed over time and separately for the fertiliser layer and the areas above and below with X-ray CT (via region growing) and WinRHIZO. Additionally, NO3− and NH4+ in soil and soil solution were analysed. In Vicia faba, no pronounced differences were observed, although CT analysis indicated different root soil exploration for high NH4+. In Hordeum vulgare, high NO3− inhibited lateral root growth while high NH4+ stimulated the formation of first order laterals. The growth response to locally distributed N-forms in soil is species specific and less pronounced than in artificial systems. The combination of soil solution studies and non-invasive imaging of root growth can substantially improve the mechanistic understanding of root responses to different N-forms in soil.

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PENGARUH BERBAGAI ZAT PENGATUR TUMBUH (ZPT) TERHADAP PERTUMBUHAN STEK BATANG PULAI RAWA (Alstonia spatulata)

Jurnal Sylva Scienteae ◽

10.20527/jss.v4i2.3329 ◽

2021 ◽

Vol 4 (2) ◽

pp. 198

Author(s):

Winda Ningsih Pardede ◽

Gusti Muhammad Hatta ◽

Damaris Payung

Keyword(s):

Root Growth ◽

Growth Regulators ◽

Growth Regulator ◽

Growth Response ◽

Stem Cuttings ◽

The Third ◽

Randomized Design ◽

Plant Stem ◽

Completely Randomized Design ◽

Bean Sprouts

Some of the goals that exist in this research are to analyze how the effect of giving Rootone F, giving Rootmost and giving Bean Sprouts Extract to the growth response of stem cuttings in Pulai Rawa (Alstonia spatulata. Growth Regulatory Substances used in this study there are 3 types of treatments such as giving Rootone F as the first treatment, the second treatment is by giving rootmost and by giving Bean Sprouts Extract as the third treatment and in this study there is control as one of the comparison between the differences between Stem cuttings that use Growth Regulatory Substances with no provision of ZPT. In November 2019 until January 2020 this study took place in the shade house of the forestry faculty at Lambung Mangkurat University. RAL (Completely Randomized Design) The method used in this study is to use with a set of 4 treatments that were repeated 20 times in each treatment, then there were 80 experimental units in this study. The results obtained in this study showed the effect of various growth regulators which differed to the response of the growth of Pulai Rawa plant stem cuttings. The provision of rootone F did not affect the growth response while the administration of Growth Regulator Substance Rootmost gave an effect on the response of root growth of Pulai Rawa cuttings (Alstonia spatulata) and by giving Bean Sprout Extract which had an influence on the growth in number of cuttings.Keywords : Growth regulators; Stem cuttings; Pulai Rawa

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Evaluation of aluminum resistance in hybrids of Brachiaria decumbens Stapf.

Cropp Breeding and Applied Biotechnology ◽

10.1590/1984-70332015v15n4a42 ◽

2015 ◽

Vol 15 (4) ◽

pp. 251-257 ◽

Cited By ~ 1

Author(s):

Keise Mara Belmonte de Oliveira ◽

Sanzio Carvalho Lima Barrios ◽

Lucimara Chiari ◽

Valdemir Antônio Laura ◽

Cacilda Borges do Valle

Keyword(s):

Genetic Variability ◽

Root Growth ◽

Solution Culture ◽

Brachiaria Decumbens ◽

Aluminum Resistance ◽

Similar Performance ◽

The Mean ◽

Intraspecific Hybrids ◽

Root Vigor

Abstract The objective of this work was to evaluate hybrids of Brachiaria decumbens for root vigor and aluminum resistance as components of edaphic adaptation. One hundred intraspecific hybrids and their parents were evaluated in a greenhouse solution-culture. Significant differences for both traits indicate that there is genetic variability amongst hybrids. The parents had a similar performance for root growth, but differed significantly for aluminum resistance. Twenty three and seven hybrids were superior to cv. Basilisk for root vigor and aluminum resistance, respectively, but most of them were not coincident for both traits. Aluminum resistance seemed to vary quantitatively, since the majority of the hybrids were placed around the mean and fewer in the extremes. The estimate of heritability based on progeny means for aluminum resistance (0.27) was lower than for root vigor (0.69). The method used was efficient in discriminating hybrids, and identified the best ones for edaphic adaptation.

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