Effect of Foliar Spray of Plant Growth Regulators and Micronutrient on Guava (Psidium guajava)
Year: 2020
Type: article
Abstract: A study was conducted to observe the effect of foliar spray of Plant growth regulators like GA 3 , NAA and Ethephon along with boron and salicylic acid on guava variety Allahabad Safeda.Salicylic acid 150 ppm induced maximum increase in the shoot length, leaf area and number of leaves over the control.Minimum day for initiation of flowering (24.36) was taken by ethephon (140 ppm) spray followed by SA 300 ppm (25.35) and ethephon 70 ppm (25.66).Maximum number of fruits (3.18) per shoot and fruit set 74.20 per cent was noted in case of SA 150 ppm which was statistically comparable to NAA 30 ppm.However, minimum fruit set percentage i.e. 35.57per cent, was recorded in control.GA 3 70 ppm increased the fruit length and ethephon 140 ppm increased the fruit breadth over the other treatments.A maximum yield of 12.32 kg per plant was recorded under treatment SA (150 ppm), followed by NAA 30 ppm (10.81 kg) and GA 3 70 ppm (9.37 kg).Highest TSS value and Vitamin C was found under 30 ppm and boron 250 ppm, respectively.In economic analysis, highest B:C ratio (11.20) was recorded from the plant treated with SA 150 ppm.
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W4412163471