Effects of simulated acid rain on growth and yield of tomato (Lycopersicum esculentum)

Mohd Salleh, Nur Arifa (2009) Effects of simulated acid rain on growth and yield of tomato (Lycopersicum esculentum). [Project Paper] (Submitted)

Text lpFSPM2009 86 - NUR ARIFA BT MOHD SALLEH.pdf Download (3MB)

Abstract

The effect of simulated acid rain on growth and yield of tomato (Lycopersicum esculentum) were studied by using different pH of simulated acid rain. This study was carried out at net house in Universiti Putra Malaysia Bintulu Sarawak Campus. Simulated acid rain was made by using captured rainfall added with combination of sulphuric acid and nitric acid to give four different pH (pH 2, 3, 4 and 5). The captured rainfall with pH 5.6 was used as control treatment. The tomato plants were arranged in Randomized Completely Block Design (RCBD) with I 2 replications for each treatment and overall there were 60 pots of tomato plant. Plants were subjected to simulated acid rain treatment once a week until fourth week of application. Plants treated with simulated acid rain at pH 2 and 3 had very low growth. Whereas treatment at pH 4 showed no significant different to the result of plant height at pH 5 even though plants at pH 5 were higher than that of treatment at pH 4 which were 45.63 and 39.13 cm respectively. Plants on control treatment experienced taller height which indicates higher growth compared to other treatment. Foliar injury was observed on all treatment except for pH 5 and leaf area also decreased with increasing of pH. Number of tomato fruits were very low at pH 4 and both plant treated at pH 2 and 3 not produced any fruits. Biomass of fruits at pH 5 was significantly different with the control pH of SAR but higher biomass of fruits was derived from untreated plant. The reduction in the plants growth and yield was due to nutrient leaching from vegetation and soil, reduced in photosynthetic rate and subsequently affecting the growth of the plant. Based on the results it was clearly shown that tomato will be much affected by simulated acid rain in terms of the growth and yield. Further study should be done in order to control and reduce the effect of acid rain on crops especially tomato so that the growth and yield of tomato will be maintained even with the presence of acid rain in the future.

Item Type:	Project Paper
Subjects:	S Agriculture > S Agriculture (General)
Faculty:	Faculty of Agriculture and Food Sciences
Depositing User:	Mr. Azman Mohamad
Date Deposited:	08 Dec 2025 03:45
Last Modified:	08 Dec 2025 03:45
URI:	http://psaspb.upm.edu.my/id/eprint/2618

Actions (login required)

View Item