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Effects of Phosphorus Deficiency on Ion Transport and Its Correlation with Sugar Content and Anatomical Structure in Chickpea (cicer Arietinum L. Cv. BARI Chola 5) Seedlings

AMATUN KARIM
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

PARVEEN RASHID
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

RIFAT SAMAD
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

J. L. KARMOKER
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

Abstract/ Executive Summary:

Phosphorus deficiency stimulated accumulation of Na+ in the root but declined in the shoot of chickpea seedlings. K+ content in the root and the shoot increased initially followed by a decrease. Phosphorus deficiency inhibited the accumulation of NO₃?, PO₄3 and also sugar content both in the root and shoot. It also caused a decline in the accumulation of total sugar only in the root. The interrelationship between the effect of phosphorus deficiency on ion transport and anatomical structure was discussed.

Keywords: Phosphorus deficiency, Ion transport, Anatomy, Chickpea

Location: Department of Botany, University of Dhaka, Dhaka

Start Date: 00-00-2014

End Date: 00-00-2014

Program Area: Quality and Nutrition

Commodity: Chickpea

Objectives:

1. To study the effect of phosphorus deficiency on the accumulation and distribution of K+, Na+, NO₃, PO₄3 and reducing and total sugars.

Methodology:

Seeds of Cicer arietinum L. cv. BARI Chola-5 were collected from Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur. Chickpea seedlings were grown in a specialized nutrient solution. Seeds were surface sterilized with 5.25% sodium hypochlorite solution for two min. Plastic lid covered with cotton gauze was placed upon the beaker painted block filled with nutrient solution. After 48 hrs of sowing the seeds were germinated and then the germinated seeds were transferred to light bank at a day/night temperature of 25 ± 1ºC/18 ± 1^oC and day/night length of 14 hrs/10 hrs and light intensity was 160 μ einstein/m²s. The solution was replenished every 48 hrs. The solution was continuously aerated through bubbler with the help of air compressor. These seedlings were allowed to grow for ten days. Three uniform seedlings were transferred to a dunking frame 24 hrs before the starting of the experiment. Solution containing P was used as control and solution free from P was used as P deficiency treatment and the plant samples were collected after 24, 48, 72 and 96 hrs. K+, Na+ and NO₃ in the root and shoot were extracted by water digestion and PO₄3 was extracted by acid digestion. K+ and Na+ ions were measured using a flame analyzer (Jenway, PEP7, UK) at wavelengths of 767 and 589 nm, respectively.

Source of Information: Dhaka Univ. J. Biol. Sci. 23(2): 157-164, 2014 (July)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Phosphorus deficiency induced reduction in the number of xylem vessels in vascular system and size of xylem cavity may lead to the observed decrease in translocation of K+ and NO₃.

Knowledge Management: Journal