PJB-2021-503
TO STUDY THE EFFECT OF ASCORBIC ACID AS A FOLIAR SPRAY ON THE GROWTH OF Triticum aestivum L.
Shazia Rehman
Abstract
Wheat (Triticum aestivum L.) is a main food crop in Pakistan, where it is grown in abundance. There is a larger need for better plant growth solutions to suit the growing need for wheat output for an ever-increasing population. Organic fertiliser and growth regulators are necessary to improve plant growth. We wanted to see how helpful ascorbic acid (AsA) is for wheat growth and yield in our study. The experiment was carried out in the seed centre of the University of Punjab in Lahore, Pakistan, using a randomised complete block design (RCBD). Ascorbic acid was utilised as a growth regulator and two wheat cultivars, CK-50 and UJ-16, were used as test crops. The experiment was split into two sections (B1and B2). Each block was broken down into six subplots. Each plot comprises two replications, each of which was separated into three treatments: control, 100mg/L, and 200mg/L ascorbic acid treatment. Exogenous ascorbic acid was used at two stages: vegetative and reproductive. The characteristics were measured at different stages of growth and reproduction. Following the threshing of wheat in each sub plot, total yield data was collected and protein content was determined using a spectrometer. Result revealed that, growth parameters such as Plant height, leaf length, shoot length, no. of grains/ plant, yield/ plant, yield/ plot, day of, no of spikes, and chlorophyll content were all considerably increased when ascorbic acid was treated at 200mg/L. The CH-50 showed best result of plant height (85.35a ± 5.39) as compared to UJ- (16 80.53a ±6.04) at 200 mg/L conc. of AsA. On the other side the protein content of Uj-16 was best at 100 mg/L conc. (136.91a ± 25.30) and CH-50 at 200 mg/L conc (138.18a ± 25.99). Both varieties of wheat showed best chlorophyll content at 200 mg/L of concentration CH-50 (106.11a ± 16.79) and Uj-16 (104.8a ± 7.67). At 200 mg/L conc. of AsA both varieties exhibited good yield/plot CH-50 (489.01a ± 262.52) and UJ-16 (697.65a ± 155.23). CH-50 showed high no. of grains/plot at 200 mg/L conc. of AsA CH- 50 (55a ± 5.89) and UJ-16 showed 47.66a ± 5.57.
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