Root distribution and nitrogen fixation activity of tropical forage legume american jointvetch (Aeschynomene americana L.) Cv. glenn under waterlogging conditions

Manabu Tobisa, Masataka Shimojo, Yasuhisa Masuda

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We investigated the root distribution and nitrogen fixation activity of American jointvetch (Aeschynomene americana L.) cv. Glenn, under waterlogging treatment. The plants were grown in pots under three different treatments: no waterlogging (control), 30 days of waterlogging (experiment 1), and 40 days of waterlogging (experiment 2). The plants were subjected to the treatments on day 14 after germination. Root dry matter (DM) weight distribution of waterlogged plants was shallower than controls after day 20 of waterlogging. Throughout the study period, the total root DM weight in waterlogged plants was similar to that in the controls. Enhanced rooting (adventitious roots) and nodule formation at the stem base were observed in waterlogged plants after day 20 of waterlogging. The average DM weight of individual nodules on the region of the stem between the soil surface and water surface of waterlogged plants was similar to that of individual taproot nodules in the controls. Waterlogged plants had slightly greater plant DM weight than the controls after 40 days of treatment. The total nitrogenase activity (TNA) of nodules and nodule DM weight were higher in waterlogged plants than in the controls. Waterlogged American jointvetch had roots with nodules both around the soil surface and in the area between the soil surface and water surface after 20 days of waterlogging, and they maintained high nitrogenase activity and net assimilation rate that resulted in an increased growth rate.

Original languageEnglish
Article number507405
JournalInternational Journal of Agronomy
Volume2014
DOIs
Publication statusPublished - Sep 8 2014

Fingerprint

Aeschynomene americana
forage legumes
flooded conditions
nitrogen fixation
nitrogenase
soil
stems
net assimilation rate
adventitious roots
weight control
rooting
water

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Root distribution and nitrogen fixation activity of tropical forage legume american jointvetch (Aeschynomene americana L.) Cv. glenn under waterlogging conditions. / Tobisa, Manabu; Shimojo, Masataka; Masuda, Yasuhisa.

In: International Journal of Agronomy, Vol. 2014, 507405, 08.09.2014.

Research output: Contribution to journalArticle

@article{59417716709e45b7a13da179c651acdc,
title = "Root distribution and nitrogen fixation activity of tropical forage legume american jointvetch (Aeschynomene americana L.) Cv. glenn under waterlogging conditions",
abstract = "We investigated the root distribution and nitrogen fixation activity of American jointvetch (Aeschynomene americana L.) cv. Glenn, under waterlogging treatment. The plants were grown in pots under three different treatments: no waterlogging (control), 30 days of waterlogging (experiment 1), and 40 days of waterlogging (experiment 2). The plants were subjected to the treatments on day 14 after germination. Root dry matter (DM) weight distribution of waterlogged plants was shallower than controls after day 20 of waterlogging. Throughout the study period, the total root DM weight in waterlogged plants was similar to that in the controls. Enhanced rooting (adventitious roots) and nodule formation at the stem base were observed in waterlogged plants after day 20 of waterlogging. The average DM weight of individual nodules on the region of the stem between the soil surface and water surface of waterlogged plants was similar to that of individual taproot nodules in the controls. Waterlogged plants had slightly greater plant DM weight than the controls after 40 days of treatment. The total nitrogenase activity (TNA) of nodules and nodule DM weight were higher in waterlogged plants than in the controls. Waterlogged American jointvetch had roots with nodules both around the soil surface and in the area between the soil surface and water surface after 20 days of waterlogging, and they maintained high nitrogenase activity and net assimilation rate that resulted in an increased growth rate.",
author = "Manabu Tobisa and Masataka Shimojo and Yasuhisa Masuda",
year = "2014",
month = "9",
day = "8",
doi = "10.1155/2014/507405",
language = "English",
volume = "2014",
journal = "International Journal of Agronomy",
issn = "1687-8159",
publisher = "Hindawi Publishing Corporation",

}

TY - JOUR

T1 - Root distribution and nitrogen fixation activity of tropical forage legume american jointvetch (Aeschynomene americana L.) Cv. glenn under waterlogging conditions

AU - Tobisa, Manabu

AU - Shimojo, Masataka

AU - Masuda, Yasuhisa

PY - 2014/9/8

Y1 - 2014/9/8

N2 - We investigated the root distribution and nitrogen fixation activity of American jointvetch (Aeschynomene americana L.) cv. Glenn, under waterlogging treatment. The plants were grown in pots under three different treatments: no waterlogging (control), 30 days of waterlogging (experiment 1), and 40 days of waterlogging (experiment 2). The plants were subjected to the treatments on day 14 after germination. Root dry matter (DM) weight distribution of waterlogged plants was shallower than controls after day 20 of waterlogging. Throughout the study period, the total root DM weight in waterlogged plants was similar to that in the controls. Enhanced rooting (adventitious roots) and nodule formation at the stem base were observed in waterlogged plants after day 20 of waterlogging. The average DM weight of individual nodules on the region of the stem between the soil surface and water surface of waterlogged plants was similar to that of individual taproot nodules in the controls. Waterlogged plants had slightly greater plant DM weight than the controls after 40 days of treatment. The total nitrogenase activity (TNA) of nodules and nodule DM weight were higher in waterlogged plants than in the controls. Waterlogged American jointvetch had roots with nodules both around the soil surface and in the area between the soil surface and water surface after 20 days of waterlogging, and they maintained high nitrogenase activity and net assimilation rate that resulted in an increased growth rate.

AB - We investigated the root distribution and nitrogen fixation activity of American jointvetch (Aeschynomene americana L.) cv. Glenn, under waterlogging treatment. The plants were grown in pots under three different treatments: no waterlogging (control), 30 days of waterlogging (experiment 1), and 40 days of waterlogging (experiment 2). The plants were subjected to the treatments on day 14 after germination. Root dry matter (DM) weight distribution of waterlogged plants was shallower than controls after day 20 of waterlogging. Throughout the study period, the total root DM weight in waterlogged plants was similar to that in the controls. Enhanced rooting (adventitious roots) and nodule formation at the stem base were observed in waterlogged plants after day 20 of waterlogging. The average DM weight of individual nodules on the region of the stem between the soil surface and water surface of waterlogged plants was similar to that of individual taproot nodules in the controls. Waterlogged plants had slightly greater plant DM weight than the controls after 40 days of treatment. The total nitrogenase activity (TNA) of nodules and nodule DM weight were higher in waterlogged plants than in the controls. Waterlogged American jointvetch had roots with nodules both around the soil surface and in the area between the soil surface and water surface after 20 days of waterlogging, and they maintained high nitrogenase activity and net assimilation rate that resulted in an increased growth rate.

UR - http://www.scopus.com/inward/record.url?scp=84922295526&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922295526&partnerID=8YFLogxK

U2 - 10.1155/2014/507405

DO - 10.1155/2014/507405

M3 - Article

AN - SCOPUS:84922295526

VL - 2014

JO - International Journal of Agronomy

JF - International Journal of Agronomy

SN - 1687-8159

M1 - 507405

ER -