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Anatomical Changes of Lentil (lens Culinaris Medik.) Under Phosphorus Deficiency Stress

Bimal Chnadra Sarker
Department of Botany, Govt. Gurudayal College, Kishoregonj, Bangladesh

Parveen Rashid
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

JL Karmoker
Department of Botany, University of Dhaka, Dhaka-1000, Bangladesh

Abstract/ Executive Summary:

Phosphorus deficiency in lentil (Lens culinaris Medik.) resulted in the development of abundant long root hairs which were rudimentary in plants fed with phosphorus. Root and stem diameter as well as thickness of leaf reduced under phosphorus deficiency. The cortical zone of the stem and root was found to decrease under phosphorus deficiency. Vascular area became smaller with less number of xylem vessels and smaller size of the cavity due to phosphorus deficiency. The pith area was increased in the stem under phosphorus deficient condition.

Keywords: Phosphorus deficiency, Anatomical changes, Lentil

Location: Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Lentil

Objectives:

To study the changes in anatomical structures in lentil due to phosphorus deficiency.

Methodology:

Lentil (Lens culinaris Medik. var. BARI Masur-4) was taken as experimental material and seeds were collected from Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur. Seeds were surface sterilized using sodium hypochlorite solution and plants were raised in pots under sand culture method. Modified half-strength Hoagland nutrient solution containing phosphorus (+P) and no phosphorus (–P) were used to moisten the sand at regular intervals (twice in a week). The sand of +P pots were moistened with +P nutrient solution while that of deficient pots with–P nutrient solution. Roots (3 cm below sand surface), stem segments (fourth internode) and leaves (7^th number) were collected from 28-day-old plants and preserved in FAA solution for anatomical study. Free hand sectioning of root, stem and leaf was done with the help of a razor blade. The sections were stained in safranin and fast green and studied with the help of a compound microscope. Micrographs of the sections were taken using a digital camera (Nikon UFY-11A, Japan) attached with microscope.

Source of Information: Bangladesh J. Bot. 44(1): 73-78, 2015 (March)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Root and stem diameter as well as thickness of leaf reduced under phosphorus deficiency. The cortical zone of the stem and root was found to decrease under phosphorus deficiency. Vascular area became smaller with less number of xylem vessels and smaller size of the cavity due to phosphorus deficiency. The pith area was increased in the stem under phosphorus deficient condition.

Knowledge Management: Journal