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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(12): 1189-1194
DOI: https://doi.org/10.20546/ijcmas.2017.612.134


Fruit Retention in Different Litchi Germplasm Influenced by Temperature
Narayan Lal*, Alok Kumar Gupta and Vishal Nath
ICAR-National Research Centre on Litchi, Muzaffarpur, Bihar, India
*Corresponding author
Abstract:

Individual panicles produce hundreds of pistillate flowers, but only a small proportion of which set fruit and reach at maturity. There are many stages of fruit drop during growth and development caused by different factors. Different factors are associated with different stages of fruit drop. The most common drop is just after fruit set and direct economic losses at pre-harvest drops. Certain cultivars shed fruit more severely than others. The causes of early fruit drop are numerous including lack of pollination, self-incompatibility, failure of fertilization, embryo abortion and competition among developing fruit, insect pests and diseases and climatic condition resulting in internal nutritional and hormonal imbalances. Varietal differences can also be noticed in the pattern of fruit drop. Therefore, a trial was carried out at ICAR-NRC on Litchi to see the response of fruit set in different germplasm and stages of fruit drop in response to temperature. Main emphasis was given to find out the stages at which maximum drop of fruits takes places. Maximum fruit set (76.47 %) was recorded in Ellaichi whereas lowest was observed in shahi during first week after blooming but maximum fruit retention percentage was reported in Deshi (1.49) while lowest was found in dehradoon (0.3 %). The maximum fruit drop was recorded in Ellaichi (66.18%) between 1st and 2nd week, although fruit drop was very high during this period range from 14.72 to 66.18%. Subsequently dropping of fruits were decreased till harvesting but suddenly increased during the period between 4th to 5th and 7th to 8th week due to fluctuation of maximum and minimum temperature.


Keywords: Germplasm, Fruit set, Drop, Retention, Temperature.
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How to cite this article:

Narayan Lal, Alok Kumar Gupta and Vishal Nath. 2017. Fruit Retention in Different Litchi Germplasm Influenced by Temperature.Int.J.Curr.Microbiol.App.Sci. 6(12): 1189-1194. doi: https://doi.org/10.20546/ijcmas.2017.612.134