Studies on sex expression of novel pistillate lines and their suitability for hybrid development in castor (Ricinus communis L.)

Studies on sex expression of novel pistillate lines and their suitability for hybrid development in castor (Ricinus communis L.)


225 / 6

Authors

  • YAMANURA AICRP on Castor, Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK-560 065, Bengaluru
  • R MOHAN KUMAR AICRP on Castor, Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK-560 065, Bengaluru
  • K BHAVYA AICRP on Castor, Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK-560 065, Bengaluru
  • T MANJUNATH AICRP on Castor, Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK-560 065, Bengaluru
  • N NETHRA AICRP on Castor, Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK-560 065, Bengaluru
  • C LAVANYA AICRP on Castor, Zonal Agricultural Research Station, University of Agricultural Sciences, GKVK-560 065, Bengaluru

https://doi.org/10.56739/rjjkwz75

Keywords:

Castor, Female lines, Hybrids, Pistillate, Sex expression

Abstract

Studies on sex expression of new pistillate lines and their suitability for hybrid development in castor was carried out by involving five new pistillate lines developed by ICAR-IIOR, Hyderabad along with three checks. Pistillate lines IPC-42, IPC-44 and IPC-46 observed very low number of interspersed staminate flowers (ISFs) i.e., 3.67, 5.33 and 2.33 respectively compared to checks M-574 (13.67), SKP-84 (8.33) and DPC-9 (17.33). Pistillate lines IPC-46 and IPC-44 expressed ISFs only in the quaternary order whereas they showed complete pistillateness in all other order of spikes even in the sixth order of spikes (S1T1Q1P1H1). Even under higher temperature (33.10C) and high diurnal range of temperature (13.40C) these lines expressed complete pistillateness. Hence, these female lines can be directly utilized in future breeding programme to develop high yielding potential hybrids.

Downloads

Download data is not yet available.

References

ShifrissO1960. Conventional and unconventional systems controlling sex variations in Ricinus. J. Genet., 57(2-3): 361-388. DOI: https://doi.org/10.1007/BF02987242

Zimmerman L H and Smith J D 1966. Production of F1 seed in castor beans by use of sex genes sensitive to environment. Crop Sci., 6: 406-409. DOI: https://doi.org/10.2135/cropsci1966.0011183X000600050005x

Journal of Oilseeds Research

Downloads

Submitted

2023-12-08

Published

2023-12-14

Issue

Vol. 40 No. Specialissue (2023): Journal of Oilseeds Research

Section

Articles

License

The Journal of Oilseeds Research reserves all the copy rights of the published articles and prior permission is to be taken from the journal office if any part of the published articles is to be reproduced in any form in any other publication.

How to Cite

YAMANURA, R MOHAN KUMAR, K BHAVYA, T MANJUNATH, N NETHRA, & C LAVANYA. (2023). Studies on sex expression of novel pistillate lines and their suitability for hybrid development in castor (Ricinus communis L.): Studies on sex expression of novel pistillate lines and their suitability for hybrid development in castor (Ricinus communis L.). Journal of Oilseeds Research, 40(Specialissue). https://doi.org/10.56739/rjjkwz75