PJB-2020-249
EXAMINATION OF MORPHOLOGICAL AND BIOCHEMICAL ATTRIBUTES OF Brassica rapa GROWN AND IRRIGATED WITH MAGNETIC TREATED SALINE WATER
Maleeha Umber
Abstract
Abstract: The study was planned at Botany department at Nusrat Jahan College,Rabwah Pakistan to scrutinize the competence of Magnetic treated saline water on the morphological and biochemical peculiarities of Brassica rapa. Brassica rapa seeds were taken from NARC (National Agricultural Research Centre)Pakistan, Seeds were sowed in buckets of soil. Seeds were taken up to fruit stage and harvested after five months.Three different concentrations of saline water (S1=500 , S2=1500 ,S3=4000) with 550uS/cm, 2460uS/cm and 4370uS/cm electrical conductivitty(EC) ,7.7, 7.3 and 7.7 pH and 391,1848,3059mg/L TDS were taken from three different regions of Rabwah for watering plants, 300ml water was provided to all replicates of Brassica rapa as per requirment. The control group of each mentioned saline concentration was watered without magnetic treatment while saline water groups S1,S2,S3 were treated with the magnet.Germination rate,seedling growth and nutrient requirement for growth were supervised on daily bases.In the last week of may crop was harvested at fruit stage ,fresh weight and dry weight of roots , shoots were weighed and diameter of roots were taken. Biochemical tests were performed such as: Ascorbate peroxidase(APX),Malondialdehyde (MDA),Hydrogen peroxide determination. The use of magnet treated water has adequately overcame salt stress by increasing APX concentration and lowering the concentration of H2O2(hydrogen peroxide) and MDA(malondialdehyde) rather than activating ROS mechanism. This bolsters the use of magnet treated water for growing various crops in salinity without any oxidative destruction. Key words: Brassica rapa, saline water, magnet treated water, Biochemical tests
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