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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Masumi Moritsugu
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

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EFFECT OF CALCIUM ON THE GROWTH AND ION UPTAKE IN NaCl-STRESSED PLANTS Sopandie, Didy; Kawasaki, Toshio; Moritsugu, Masumi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 23 No. 1 (1995): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (966.012 KB) | DOI: 10.24831/jai.v23i1.1624

Abstract

Peanut and kidney bean gave similar response to salt stress showing a more severe growth reduction, as compared to spinach, leaf beet, barley cultivars and wild barley. Calcium showed the protective effect on salt injury in all plants, the effect of which was more pronounced in spinach, leaf beet and both types of barley plant than that in bean and peanut. High concentration of NaCl decreased the content of K, Ca, and Mg in both shoot and root of all plants. Elevated Ca in the nutrient solution, however. Considerably alleviated the inhibition of K uptake due to NaCl. The result suggested that the maintenance of K / Na selectivity by Ca in plant might result in the enhancement of salt tolerance.
EFFECT OF SILICATE ON THE GROWTH AND ION UPTAKE IN NaCI-TRESSED PLANTS Sopandie, Didy; Moritsugu, Masumi; Kawasaki, Toshio
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 23 No. 2 (1995): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (874.497 KB) | DOI: 10.24831/jai.v23i2.1630

Abstract

The purpose of this experiment was to investigate the effect of Si on the growth and ions uptake (K, Na, Ca, and Mg) in rice, bean and barley plants grown in saline conditions. Rice and bean plants were subjected to 0 and 30 mM NaCI in the nutrient solution with and without Si, whilst for barley plants 0 and 40 mM NaCI were used. In this investigation, 2.0 mM Si was used as silicilic acid. The results revealed that Si had the protective effect on salt injury only for rice plants. This alleviating effect of Si appeared to be associated with the interference of Si on the upward Na transport by reducing the content of Na in the shoots and retaining it in the roots. Generally, addition of Si did not affect the content of K in all plants tested. Except for rice, Si had no or less effect on Ca and Mg uptake in bean and barley plants.
SALT TOLERANCE OF TURF GRASS Puccinellia distans: I. GROWTH RESPONSE AND ION ACCUMULATION Sopandie, Didy; Moritsugu, Masumi; Kawasaki, Toshio
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 23 No. 3 (1995): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1000.789 KB) | DOI: 10.24831/jai.v23i3.1635

Abstract

The aim of this study was to see the salt tolerance of turf grass Puccinellia distans in term of ion accumulation and ionic interactions under salt stress condition. Plants were grown hidroponically in culture solution with addition of NaCI (0, 25, 50, 100 and 200 mM). High concentrations of NaCI brought about growth reduction; the decrease of shoot dry matters was in the range of 30-84% and 30- 70% for root dry matters. Although the yield of plants decreased so much in the presence of 200 mM NaCI, but plants were able to remain alive without showing any visible symptoms of injury. Much more Na was accumulated in the roots than in the shoots. Exposing plants to salinity result in the decrease of K, Ca, and Mg contents.
SALT TOLERANCE OF TURFGRASS Puccinellia dirtans: II. IONIC INTERACTION IN THE ROOTS Sopandie, Didy; Moritsugu, Masumi; Kawasaki, T.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 23 No. 3 (1995): Buletin Agronomi
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (748.785 KB) | DOI: 10.24831/jai.v23i3.1636

Abstract

In this study, multi-compartment transport boxes were used to determine the mobility of ions in the execised roots. For measuring Na uptake, the concentrations of 1, 50 and 150 mM NaCI were used in the external medium, whilst Ca were 0 and 2. 0 mM. The uptake of K was measured from 1.0 mM KCI in the presence of Na (0.50 and 150 mM) and Ca (0.50 and 2.0 mM). In the present study, 22 Na and 86 Rb were used to label Na and K in the external medium, respectively. Addition of Ca inhibited Na uptake in the roots exposed to 1.0 mM and 50 mM NaCI, thought Ca was relatively less effective in 150 mM. High concentrations of NaCI brought about the reduction of K uptake. Calcium, however, did not show any importance in recovering the uptake of K from the adverse effect of Na when the roots were exposed 10 50 mM NaCI, thought stimulating effect of Ca was observed at 150 mM NaCI. The results revealed that the pattern of ionic interactions in Puccinellia distans differs much with that generally found in most of halophyte plants.
Co-Authors Didy Sopandie T. Kawasaki Toshio Kawasaki