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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(11): 1637-1646
DOI: https://doi.org/10.20546/ijcmas.2017.611.196


Role of Ethrel in Manipulation of Sex Expression in Pistillate and Monoecious Lines of Castor (Ricinus communis L.) at Different Concentrations
P. Vema* and S. Narender Reddy
Department of Crop Physiology, College of Agriculture, PJTS Agricultural University, Rajendranagar, Hyderabad -500 030, Telangana, India
*Corresponding author
Abstract:

An experiment was conducted during rabi season in the year 2013, to know the effect of Ethrel on sex expression of Pistillate or Staminate flowers in Pistillate/Female and Monoecious lines of castor. The study was carried out with one monoecious line i.e., DCS-107 and two pistillate lines i.e., M-574 and DPC-9. Ethrel was sprayed at 100 ppm, 150 ppm and 200 ppm concentrations successively at 15, 30, 45 and 60 DAS. The results indicated that ethrel sprayed at all concentrations significantly increased the expression of pistillate flowers by suppression of interspersed staminate flowers (ISFs) in pistillate line and male flowers in monoecious line. Total number of female flowers per spikes significantly increased in ethrel sprayed plots as compared to unsprayed ones. Ethrel sprayed at 200 ppm gave maximum number of pistillate whorls, increased spike length, more number of capsules, increased seed weight and seed yield. The study revealed that Ethrel at 200 ppm has a great potential as growth regulator in maintaining pistillateness in hybrid seed production plots, thereby increasing genetic purity of hybrid seed.


Keywords: Castor, Pistillate, Monoecious, Interspersed staminate flowers (ISFs).
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How to cite this article:

Vema, P. and Narender Reddy, S. 2017. Role of Ethrel in Manipulation of Sex Expression in Pistillate and Monoecious Lines of Castor (Ricinus communis L.) at Different Concentrations.Int.J.Curr.Microbiol.App.Sci. 6(11): 1637-1646. doi: https://doi.org/10.20546/ijcmas.2017.611.196