Ber (Zizyphus mauritiana Lamk.) is an indigenous delicious, nourishing fruit grown widely throughout the India but faces heavy fruit drop due to several biotic and abiotic stress factors resulted in declining trend of ber pro-duction over the year. Keeping these facts in foreground, replicated field experiment was conducted during 2013-14 and 2014-15 at HRS, Mondouri, BCKV, West Bengal with eleven treatments consist two different levels of NAA, GA3, 2,4-D, ZnSO4 and H3BO3 along with a control (water spray). Results of investigation revealed that application of 2,4-D @ 10 mg/l recorded highest fruit set (48.80%). Maximum fruit retention (42.83%) and total no. of fruits/tree (514) were obtained with the application of NAA @ 20 mg/l. Application of GA3 @ 20 mg/l recorded significantly (p?0.05) higher yield (30.67 kg/tree), fruit weight (60.5 g), fruit length (5.8 cm), fruit breadth (5.1 cm), pulp to seed ratio (13.9) and specific gravity (1.104) as well as economic returns over control during both the year of experiment. Among the treatments H3BO3 at 0.4% recorded the highest TSS (11.7°Brix), total sugar (8.33%), reducing sugar (5.21%) and TSS: Acid (107.36) ratio with lowest fruit acidity (0.10 %) whereas highest vitamin-C content of fruit was recorded with GA3 at 20 mg/l (64.68 mg / 100 g) followed by NAA at 20 mg/l. Results suggest that twice spraying of GA3 @ 20 mg/l and H3BO3 at 0.4% is vital for optimizing yield components, yield and quality of ber (cv. BAU Kul-1) in trans-Gangetic plains of West Bengal.
Ber, Growth regulators, Micronutrients, Yield, Quality
Arora, R. and Singh, S. (2014). Effect of growth regulators on quality of ber (ZizyphusmauritianaLamk) cv. Umran. Agril. Sci. Digest, 34(2):102?106.
Bal, J.S. and Randhawa, J.S. (2007). Effect of NAA on fruit drop and quality of ber. Haryana J. Hort. Sci. 36(3/4):231?231.
Bal, J.S., Randhawa, J.S. and Singh, S.N. (1988). Effect of NAA on fruit characters and quality of ber cv. Umran. Haryana J. Hort. Sci., 17:20?23.
Bankar, G.J. and Prasad, R.N. (1990). Effect of gibberellic acid and NAA on fruit set and quality of fruits in ber cv. Gola. Progressive Hort., 22:60?62.
Chaudhary, B.R., Sharma, M.D., Shakya, S.M. and Gautam, D.M. (2006). Effect of plant growth regulators on growth, yield and quality of chilly (Capsicum annuumL.) at Rampur, Chitwan. J. Inst. Agric. Anim. Sci., 27:65?68.
Chauhan, K.S. and Gupta, A.K. (1985). Effect of foliar application of urea on the fruit drop physico-chemical composition of ber fruits under arid conditions. Haryana J. Hort. Sci., 14:9?11.
Dutta, P. and Banik, A.K. (2007). Effect of foliar feeding of nutrients and plant growth regulators on physico-chemical quality of Sardar guava grown in West Bengal. Acta Hort., 335(6):407?411.
Gadi, B.R. and Bohra, S.P. (2005). Effect of plant growth regulators on photosynthesis and some biochemical parameters in ber cv. Gola. Indian J. Hort. 62(3):296?297.
Ghosh, S. N., Bera, B., Kundu, A. and Roy, S. (2009). Effect of plant growth regulators on fruit retention, yield and physico-chemical characteristics of fruits in ber 'BanarasiKarka' grown in close spacing. Acta Hort., 840:357?362.
Ghosh, S.N. and Tarai, R.K. (2007). Effect of mulching on soil moisture, yield and quality of ber. Indian J. Soil Cons., 35:246?248.
Gill, K.S. and Bal, J.S. (2013). Impact of application of growth regulators on Indian jujube. Acta Horticulture, 993:119?124.
Gomez, K.A. and Gomez, A.A. (1984). Statistical procedures for Agricultural Research, John Willey and Sons, New York.
Iqbal, M., Khan, M.Q., Rehman, K. and Muni, M. (2009). Effect of foliar application of NAA on fruit drop, yield and physico-chemical characteristics of guava (Psidiumguajava L.) red flesh cultivar. J. Agril. Res. (Lahore), 47(3):259?69.
Josan, J. S. (1991). Studies on the fruit cracking in lemon (Citrus limon). Ph D. Thesis submitted to Punjab Agril. Univ., Ludhiana.
Krishnamoorthy, H.N. (1993). Physiology of plant growth and development. Atma Ram and Sons Publishers.
Majumder, I. (2015). Influence of Growth Regulators and Micronutrients on Yield and Quality of Ber. M.Sc. Thesis submitted to Bidhan Chandra Krishi Viswavidyalaya.
Movchan, V.G. and Soboroikova, I.G. (1972).The fertilization and the uptake of mineral nutrients by vines growing in the southern Chernozan. Agrochimica 5:123-30
Nawaz, M.A., Waqar, A., Saeed, A. andKhan, M. (2008). Role of growth regulators on preharvest fruit drop, yield and quality in kinnow mandarin. Pak. J. Bot., 40(5):1971?1981.
NHB. (2015). National Horticulture Board online statistical database, Ministry of Agriculture, Govt. of India. http://www.Indiastat.com. (Accessed on 13th February, 2015).
Rai, M. and Gupta, P.N. (1994). Genetic diversity in ber. Indian J. Hort., 39:42?47.
Reddy, M.M., Reddy, G.S. and Madhusudan, T. (1997). Evaluation of some ber (Zizyphusmuritiana L.) varieties and fungicides against powdery mildew. J. of Res. ANGRAU., 25:19?26.
Richard, M. (2006). How to grow big peaches. Dep. of Hort. Virginia Tech. Blacksburg, VA 24061. http://www. Rce.rutgers.edu. (Accessed on 18th August, 2006).
Rizk-Alla, M.S., Abd El-Wahab, M.A. and Fekry, O.M. (2011). Application of GA and NAA as a Means for Improving Yield, Fruit Quality and Storability of Black Monukka Grape. Nature and Sci., 9(1):1?19.
Samant, D., Mishra, N.K., Singh, A.K., Lal, R.L. (2008). Effect of micronutrient sprays on fruit yield and quality during storage in ber cv. Umran under ambient conditions. Indian J. Hort.,65(4):399?404.
Singh, A. and Singh, H.K. (2015). Application of Plant Growth Regulators to improve Fruit Yield and Quality in Indian Gooseberry (Emblica officinalisGaertn.). J. of Agri Search, 2(1):20?23.
Singh, K. and Randhawa, J. S. (2001). Effect of growth regulators and fungicides on fruit drop, yield and quality of fruit in ber cv. Umran. J. Res., Punjab Agric. Univ., 38(3/4):181?185.
Teaotia, S.S., Chauhan, R.S. (1963). Flowering, pollination, fruit set and fruit drop studies in ber (ZizyphusmauritianaLamk.). Punjab Hort. J., 3:60?70.
Tomaszewska, E. and Tomaszewska, M. (1970). Endogenous growth regulators in fruit and leaf abscission. Zeszyty Nauk Biol., Copernicus Univ., 23:45?53.
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