Effect of various plant growth regulators on yield and quality of guava (Psidium guajava L.) cv. LUCKNOW-49

Abstract

: The present investigation was carried out to determine the suitable and optimum concentration of boron and plant growth regulators for maximum productivity and quality of guava cv. during Kharif season. From the present study it can be concluded that the treatment T 10 (0.2% boron + GA 3 60 ppm+ NAA 150 ppm + ethrel 750 ppm) was found best for physical parameters and treatment T 5 (0.2% boron + NAA 150 ppm) for yield point of view, while for quality point of view the treatment T 9 (0.2% boron + ethrel 1000 ppm) was found best. As far as the relative economics of the treatment is concerned, the maximum net realization of Rs. 1,72,807 per hectare with highest 1:6.6 cost benefit ratio (CBR) was obtained by the treatment T 5 (0.2% boron + NAA 150 ppm) as compared to other treatments. Therefore, the treatment T 5 (0.2% boron + NAA 150 ppm) is best among all treatment for higher production.

A Study on Foliar Feeding of GA3 and NAA on Vegetative Growth and Yield of Phalsa (Grewia Subinaequalis D.C.)

“…These results are in close conformed with finding of Anawal et al, (2015) in pomegranate cv. Bhagwa, Rajput et al, (2015) in guava cv. L-49 and Sharma et al, (2008) in mango.…”

“…The results showed that NAA 150 ppm and ethrel 1000 ppm significantly increased the flower & yield attributes and GA3 150 ppm improve quality characters of phalsa. Rajput et al, (2015) concluded that the treatment T10 (0.2% boron + GA3 60 ppm+ NAA 150 ppm + ethrel 750 ppm) was found best for physical parameters and treatment T5 (0.2% boron + NAA 150 ppm) for yield was found best. As far as the relative economics of the treatment is concerned, the maximum net realization of Rs.…”

A Review on Effect of Plant Growth Regulators on Physico-Chemical Attributes of Phalsa (Grewia subinaequalis D.C.)

“…Similarly, the decay loss was minimum in the fruits treated with GA 3 at 30 ppm both with ambient (1.02%) and cellar condition (8.21%) as against control with ambient (5.54%) and cellar (21.58%) in guava. Rajput et al, (2015) concluded that the treatment T 10 (0.2% boron + GA3 60 ppm+ NAA 150 ppm + ethrel 750 ppm) was found best for physical parameters and treatment T5(0.2% boron + NAA 150 ppm) for yield point of view, while for quality point of view the treatment T 9 (0.2% boron + ethrel 1000 ppm) was found best. As far as the relative economics of the treatment is concerned, the maximum net realization of Rs.…”

Effect of Growth Regulators on Yield and Quality of Winter Guava Cv. Allahabad Safeda.

“…This might be attributed to the fact that quick metabolic transformation of starch into soluble sugars and early ripening in response to growth regulators resulted in the good ascorbic acid content. The increase in ascorbic acid content might have resulted owing to biosynthesis of ascorbic acid from sugar or inhibition of oxidative enzymes or both due to favourable metabolic activity involving certain enzymes and metabolic ions under the influence of plant growth regulators and micro-nutrients (Rajput et al 2016). An increase in ascorbic acid content might be due to perpetual synthesis of glucose-6-phosphate throughout the growth and development of fruits which is thought to be the precursor of vitamin C. The research findings of Bariana and Dhaliwal (2002) also advocated the same in guava fruits cv.…”