EFFECTS OF SILICON NUTRITION ON SALINITY TOLERANCE OF PUCCINELLIA DISTANS (JACQ.) PARL

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BANDANI M.; ABDOLZADEH AHMAD

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2007 | Volume:14 | Issue:3 Page(s): 111-119

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Information Journal Paper

Title

EFFECTS OF SILICON NUTRITION ON SALINITY TOLERANCE OF PUCCINELLIA DISTANS (JACQ.) PARL

Author(s)

BANDANI M. | ABDOLZADEH AHMAD | Issue Writer Certificate

Keywords

SALINITYQ2

SILICONQ3

PUCCIENELLIA DISTANSQ3

Abstract

Puccinellia distans are perennial, salt tolerant forage that belongs to Geraminea family. This research was plane for the increment of salt tolerance of PUCCIENELLIA DISTANS with SILICON and calcium nutrition and their interaction. The experiments accomplished in two growth stages including germination and vegetative stages. Germination experiment performed in peti dishes and paper towels under five SALINITY levels including 0, 50, 100, 150 and 200 mM NaCl. Vegetative growth stages tests done in three experiments. Design of experiment 1 was completely randomized with two factors, SALINITY including 0, 100 and 200mM NaCl and SILICON including 0, 0.5 and 1mM SILICON (as a sodium silicate). The second experiment had two factors consist of salfnity including 0, 100 and 200 mM NaCl and supplemental calcium nutrition including 0, 1/5 and 3mM calcium chloride. Experiment three run with two factors including SILICON and calcium simultaneous (respectively including 1 and 1.5 mM) and SALINITY including 0, 100 and 200 mM NaCl. Plants were cultivated in sand culture in greenhouse and irrigated with Hoagland nutrient solution. SALINITY reduced germination percentages, rates and uniformity significantly. Also, SALINITY decreased the length of radicles and hypocotyls in seedlings. SALINITY reduced dry mass of plant shoot but SILICON nutrition could alleviate effects of SALINITY and caused a significant increase in shoot and total dry mass under SALINITY. SILICON nutrition reduced Na+ concentration in plants under SALINITY and consequently, alleviated SALINITY effect in plants. The reduction of Na+ uptake and concentration could at least partly be explained by the inhibitory effect of SILICON on the transpiration rate of plants under SALINITY. The supplemental calcium nutrition (1.5 mM) under 100 mM NaCl increased dry mass shoot and root. Supplemental calcium nutrition (1.5 mM) under 100 mM NaCl reduced sodium concentration in plant tissues that might be resulted higher growth of plants. Comparison of treatments according to dry mass under SALINITY indicated that sole SILICON and calcium plus SILICON treatments had certain advantage to sole calcium treatment. Alleviation of SALINITY by simultaneous calcium and SILICON nutrition is lower than each one solely. It might be related to calcium and SILICON antagonism on uptake and transportation and competition of them for cell wall sites assimilation. Further experiments I farms and range is essential for confirmation of these results.

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APA: Copy

BANDANI, M., & ABDOLZADEH, AHMAD. (2007). EFFECTS OF SILICON NUTRITION ON SALINITY TOLERANCE OF PUCCINELLIA DISTANS (JACQ.) PARL. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 14(3), 111-119. SID. https://sid.ir/paper/9729/en

Vancouver: Copy

BANDANI M., ABDOLZADEH AHMAD. EFFECTS OF SILICON NUTRITION ON SALINITY TOLERANCE OF PUCCINELLIA DISTANS (JACQ.) PARL. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2007;14(3):111-119. Available from: https://sid.ir/paper/9729/en

IEEE: Copy

M. BANDANI, and AHMAD ABDOLZADEH, “EFFECTS OF SILICON NUTRITION ON SALINITY TOLERANCE OF PUCCINELLIA DISTANS (JACQ.) PARL,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 14, no. 3, pp. 111–119, 2007, [Online]. Available: https://sid.ir/paper/9729/en

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