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Available online at www.ijpab.com Prakash et al Int. J. Pure App. Biosci. 5 (3): 62-66 (2017) ISSN: 2320 – 7051 DOI: http://dx.doi.org/10.18782/2320-7051.2553 ISSN: 2320 – 7051 Int. J. Pure App. Biosci. 5 (3): 62-66 (2017) Research Article Effect of Foliar Feeding of Urea, Zinc Sulphate and Plant Growth Regulator on Physical Parameter and Yield of Aonla Fruit (Emlica officinalis Gaertn) Cv. Chakaiya Om Prakash1*, A. L. Yadav2 and Yashpal Singh3 1College of Horticulture, Banada University of Agriculture & Technology, Banda -210001(UP) 2Narendra Deva University of Agriculture & Technology, (Kumarganj), Faizabad -224229(U.P) 3Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture &Technology, Meerut-250110, Uttar Pradesh *Corresponding Author E-mail: [email protected] Received: 5.02.2017 | Revised: 16.02.2017 | Accepted: 18.02.2017 ABSTRACT The present investigation was carried out to investigate "Effect of foliar feeding of urea, zinc sulphate and plant growth regulators on yield and quality of aonla fruit (Emblica officinalis Gaertn) cv. chakaiya . The experiment was concluded at Main Experiment Station, Department of Horticulture, Narendra Deva University of Agriculture. & Technology, Narendra Nagar (Kumarganj), Faizabad (U.P.) in India. The experiment was conducted in randomized block design with nine treatments, replication thrice and considering one plant as a unit. The observations were recorded flowering and fruiting behaviour, physical and chemical characters of aonla fruits. The minimum fruit drop and maximum fruit retention, size, weight, volume, pulp: stone ratio, yield, total soluble solids (TSS), total sugar ascorbic acid, reduction of acidity and total phenol were recorded with the foliar application ofT9 (20 ppm GA3 + 0.25% zinc sulphate + 50 ppm NAA + 2% urea). The fruit yield was also recorded maximum with the application of same treatment. Over all it can be concluded that combined spray of T9 (20 ppm GA3 + 0.25% Zinc sulphate+ 50 ppm NAA + 2% urea).Was found to be best for higher yield and better fruit quality. Key word: Aonla, urea, Zink Sulphate, NAA, GA3 INTRODUCTION gooseberry has also been reported from Indian gooseberry is locally known as amla, Ceylon, Cuba, Puetrp Rice, Hawaii, Florida. amlaki, ambola and nelli in different parts of Iran, Iraq, Java, West Indies, Trinidad, India and botanically name is {Emblica Pakistan Malaya and China4. In India, its officinalis Gaertn); Which belong to family cultivation is practiced sine ancients times Euphorbiaeceae and sub family which are mention in Vedas, Kadambari Phyllanthaidae. It is native to tropical region of ayurvedic and other literatures for its south-East-Asia particularly central and nutritional and medicinal values. southern India. The wild plantation Indian Cite this article: Prakash, O., Yadav, A. L. and Singh, Y., Effect of Foliar Feeding of Urea, Zinc Sulphate and Plant Growth Regulator on Physical Parameter and Yield of Aonla Fruit (Emlica officinalis Gaertn) Cv. Chakaiya, Int. J. Pure App. Biosci. 5(3): 62-66 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2553 Copyright © June, 2017; IJPAB 62 Prakash et al Int. J. Pure App. Biosci. 5 (3): 62-66 (2017) ISSN: 2320 – 7051 Aonla is one of the important indigenous fruits cm. en fruits were taken to measure the weight which is richest source of vitamin 'C after of fruits. The weight of ten fruits was weighed barbedoscherry it is also rich in minerals with the help of physical balance. The average particularly-Iron, phosphorus, calcium and weight of fruit were calculated and expressed magnesium and also contents sugars and acids. in gram. The volume was determined by water The aonla fruit is also valued for its pharma displacement method and the average volume cordials, food processing and cosmetic of fruit was calculated and expressed in (cm). products. The cultivation of aonla is well Fruit were blanched in water and their segment spread throughout India varying from arid and were separated from seed (stone) thoroughly semi-arid, waste land, sodic land and drought washed with boil water and their fibers were prone area. Its commercial cultivation is separated with help of knife and stone weight predominantly occupied in Uttar Pradesh and was obtained with help of physical balance spread over to other states particularly in and expressed in gram. Pulp weight obtained Rajasthan, Maharashtra, Gujarat, Madhya by deducing the stone weight from total fruit Pradesh, Haryana, Andhra Pradesh etc. weight and expressed in gram. The pulp stone However, the production of aonla under ratio was calculated in relation to pulp weight variable soil and climatic condition varied due and stone weight. The weight of fruit/plant to lack of well standardized culture thus is recorded at harvesting time and total yield need to develop Improved agro-techniques (kg/tree) was calculated. Statistical analysis of improving the production and quality of fruits the data obtained in the different set of in respect to variable range of soil and climatic experiment was calculated, as suggested by condition. The aonla is a prolific in being and Panse and Shukhatme7. longer life and were heavy crops every year. Which resulted to heavy low of nutrients from RESULTS the tree? A. Flowering and fruiting behaviour: A perusal of data recorded on per cent fruit MATERIAL AND METHODS drop and fruit retention have been presented in The experiment was laid out in Randomized which clearly indicated that was significant block design (RBD) replicated thrice with one effective all the treatments and most of the plant unit. The details of experimental plan treatments were found at par except treatment and treatment are T1 -Control, T2 - 20 ppm T9 (20 ppm GA3 + 0.25% zinc sulphate + 50 GA3 T3 - 50 ppm NAA, T4 - 0.25% Zinc ppm NAA + 2% urea). The minimum fruit Sulphate. T5 -2% Urea, T6 -20 ppm GA3 +50 drop was recorded with the spray ofT9 (20 ppm NAA, T7 -20ppm GA3 + 0.25% Zinc ppm GA3 + 0.25%o zinc sulphate + 50 ppm Sulphate, T8 –GA3+2% Urea, T9 -20 ppm GA3 NAA + 2% urea), where as maximum fruit + 0.25% Zinc Sulphate + 50ppm NAA +2% drop was found in control. The similar trends Urea fruit retention was also noted same treatment. It was calculated as number of fruit set The reason for reduction in percentage fruit divided by number of flowers appeared and drop and increasing of fruit retention might be expressed in percentage. The percentage fruit due to combine treatment T9 (20 ppm GA3 + drop was calculated. Total number of fruits 0.25% zinc sulphate + 50 ppm NAA + 2%> reached till maturity. Ten fruit were sampled urea).Which might be increase the endogenous to measure the size of fruit. The length and level of auxine and other metabolites. The breath of fruit were recorded with the help of synthesis of endogenous plant growth vernier calipers. The average ten fruits were substances and their translocation to growing taken for record of fruit size and expressed in of fruit bud similar observation on fruit drop Copyright © June, 2017; IJPAB 63 Prakash et al Int. J. Pure App. Biosci. 5 (3): 62-66 (2017) ISSN: 2320 – 7051 and fruit retention in number of fruit crops Significant effect in increase of Pulp weight, have been also recorded by Brahmachari and stone weight and pulp: stone ratio were also Rani have also reported appreciable decreased observed due to foliar application of urea, zinc fruit drop and increase fruit retention. and plant growth regulators The maximum B. Physical character of fruit: pulp weight and pulp: stone ratio were It is evident from the data indicated that recorded with the spray of T9 (20 ppm GA3 + significantly increased in fruit size. The 0.25% zinc sulphate + 50 ppm NAA + 2% maximum fruit size in term of fruit length and urea). However, minimum pulp stone ratio was breadth were recorded with combined spray of obtained under control treatment. There better T9 (20 ppm GA3 + 0.2 5% zinc sulphate + 50 development of physical character of fruit may ppm NAA + 2% urea). The other treatments be attributed due to supply of above i.e., T7 (20 ppm GA3 + 0.25% zinc sulphate) concentration of chemical arid there are very and T4 (0.25% zinc sulphate) were also little information are available. The results are effective increase of fruit size. The reason for closed conformity by finding of Singh et al.13 increase in fruit size due to spraying of urea, foliar feeding of nutrients increase the pulp: zinc and plant growth regulators, might be stone ratio of aonla fruits. attributed move efficient absorption and Data recorded on fruit yield (kg/tree) consequently more luxriant vegetative growth as influenced by various treatments have been in the initial stage. Which influenced the more clearly indicated that all the treatments were activity of metabolism in plant was attributed found significantly better over control to better development of fruits. The present treatment. The highest fruit yield was recorded findings have also been confirmed with the with the spray of T9 (20 ppm GA3 + 0.25% recorded by Randhawa and Sharma by zinc sulphate + 50 ppm NAA + 2% urea) spraying of NAA at 25, 50, 75 ppm an minimum fruit yield was observed in control. increased of fruit size of citrus yar. Jaffa The increased fruit yield due to foliar feeding pineapple and musumi. Rajput and Singh ber of nutrients and plant growth substances, cv. Varanasi karaka, and Dixit et al. kinnow might be attributed to more uptake of nutrients with the spray of (1.0% ZnS04). because efficient absorption and consequently Observation recorded an average fruit more luxuriant vegetative growth to the initial weight depicted clearly indicated that stage which later on resultant more metabolites application of T 9(20 ppm GA3 + 0.25% zinc for developing fruits.

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