Indian Journal Of Agricultural Research
Publish
your articles with us

Quick Facts



Payment Options

payment portals

Click here to pay directly

Effect of PGRs combination on pre-harvest fruit drop of Khasi mandarin (Citrus reticulata Blanco.)

S. R. Singh*, L. Wangchu, Barun Singh, B. N. Hazarika, A. K. Pandey

College of Horticulture & Forestry, Central Agricultural University, Pasighat-791 102, Arunachal Pradesh, India

romensenjam@yahoo.com

Page Range:
167-171
Article ID:
A-4708
Online Published:
19-04-2017
Abstract

The synthetic auxin like 2,4-D, 2,4,5-T and NAA were investigated on ten (10) years old tree to study the effect of different combinations of PGR on pre-harvest fruit drop at Bodak village under East Siang district of Arunachal Pradesh, India during the year 2014-2015. Result showed maximum fruit retention in T6 Urea 1% + 2, 4- @ 15ppm (45.4%) followed by T5 NAA@5ppm + 2,4-D@10ppm (44.3%) resulting significantly increased the total number of fruits in (T6)  (244.3 fruits / tree) followed by T5 (241.6 fruits/tree) as compared to control (17.3% fruit retention and 181 fruits/ tree) Hence, the combination of recommended dose of fertilizer i.e. 400:400:900g NPK/plant/year along with Urea 1% + 2, 4- @ 15ppm foliar spraying thrice during April, July and September can be used to control the fruit drop in Khasi mandarin. 

Keywords
Khasi mandarin, PRG, Pre-harvest, Fruit drop, Fruit retention.
References
  • Amiri N.A, Arzani K and Asadi AK 2012. Reduction in June Drop, a Way to Reduce Losses of Satsuma (Citrus unshiu). Acta Hort.: 928
  • Anonymous 2014. All India area and production of fruits and vegetables. Indian Hort. Database, National Horticultural Board, Ministry of Agriculture, Govt. of India. pp. 3-4. (http.//www.nhb.gov.in)
  • Anthony MF and Charles W (2001). NAA and 3,5,6-TPA control matire fruit drop in california citrus. HortScience 36 (7): 1296-1299.
  • Aranguren M, Alfaro D and Castro YO 1988. Efecto de aplicaciones precosecha de 2,4-D sobre el desarrollo del fruto y el control de la caídas por rajaduras em naranja ‘Valência’. Ciênc. Tec. Agric. Cítricos Otros Frutales, 11, 113-120. 
  • Hazarika BN and Singh SR (2013). Book on Good agricultural practices in khasi mandarin, Published under the CCS on horticulture Mission for NE and Himalayan States, College of Horticulture & Forestry, CAU, Pasighat, A.P.
  • Barros SA (1992). Efeitos da aplicação pré-colheita de fitorreguladores, no desenvolvimento final e maturação do fruto da tangerineira ‘Ponkan’ (Citrus reticulata Blanco). Dissertação (Mestrado), Universidade Estadual Paulista, Botucatu, Brazil.
  • El-kobbia AM, Kassem HA, Marzouk H and Abo-Elmagd M (2011). Enhancing cropping of Navel orange by different agrochemical foliar sprays. Emir.J.Food agric. 23 (1): 95-102.
  • Malik R P, Ahlawat V P and Nain A S (2000). Effect of foliar spray of urea and zinc sulphate on yield and fruit quality of Kinnow-a mandarin hybrid. Haryana Journal of Horticultural Sciences. 29(1/2): 37-38.
  • Monselise SP and Goren R (1978), The role of internal factors and exogenous control in flowering, peel growth, and abscission in citrus. Hortscience, 13, 134-139. 
  • Stewart WS and Hield HZ (1950). Effects of 2,4-Dichlorophenoxyacetic acid and 2,4,5-Trichlorophenoxyacetic acid on fruit drop, fruit production, and leaf drop of lemon trees. Proc. Am. Soc. Hortic. Sci., 55, 163-171. 
Global footprints


© 2015 ARCC JOURNALS. All Rights Reserved. Powered By ARCC JOURNALS