World Journal of Agricultural Research
ISSN (Print): 2333-0643 ISSN (Online): 2333-0678 Website: http://www.sciepub.com/journal/wjar Editor-in-chief: Rener Luciano de Souza Ferraz
Open Access
Journal Browser
Go
World Journal of Agricultural Research. 2015, 3(3), 102-106
DOI: 10.12691/wjar-3-3-2
Open AccessArticle

Reduction in Intergeneration Time Interval in Selection of Sugarcane Varieties through Population Testing

M. Krishnamurthi1, , K. Shanmugha sundaram2 and S. Rajeswari2

1Sakthi Sugarcane Research and Consultants Pvt.Ltd, Sadananada Nagar, NGEF Layout, Bengaluru India

2R&D Center, E.I. D. Parry (India) Ltd, Bengaluru, India

Pub. Date: April 29, 2015

Cite this paper:
M. Krishnamurthi, K. Shanmugha sundaram and S. Rajeswari. Reduction in Intergeneration Time Interval in Selection of Sugarcane Varieties through Population Testing. World Journal of Agricultural Research. 2015; 3(3):102-106. doi: 10.12691/wjar-3-3-2

Abstract

Traditionally, the variety testing scheme spans over a period of 13 to 15 years. In most countries all releases are based on small plot (i.e. seven stage) trials and small mill analysis. Rarely field planting and large mill tests are carried out with a crush of an hour which is the minimum time required. The current selection programme suffers from old concepts with sample testing and extrapolation of the data, which does not withstand the rigours of field conditions. The gap between the trial plots and field is large on both counts namely Pol% cane and yield. This paper discusses the population-testing concept to facilitate large mill testing and cutting down intergeneration time interval for releasing varieties. In the current scheme, the intergeneration time interval for releasing varieties is reduced from 13 years to 6 to 8 years. This was possible with a change in the variety testing concept. It was a population testing concept which includes early selection based on heritable characters like brix, fibre, pest and disease resistance and later 2.0 ha and more under field conditions. The best clones are taken for multiplication at three locations using single eye buds. The principle is that instead of using small plots, larger populations at three locations are used. The three varieties viz., PI 96-0151, PI 97-0843 and PI 97-1946 were multiplied along with Co 86-032. These varieties were tested in the large mill for their performance and behaviour under field conditions and compared with the standard variety Co 86-032. All the three varieties recorded higher yield and POCS% when compared with Co 86-032. The early and advance yield trial results are discussed and confirmed. We can release the varieties through large population test, much earlier as the system provides conclusive information on varietal performance under field conditions thus reducing the intergeneration time interval in selection of varieties for commercialization.

Keywords:
selection sample testing population testing intergeneration time interval

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References:

[1]  Daniels, J. Horsely, D.R. Masilaca A.S., Miles K.G. Singh, H., Stevenson, N. and Wilson, B., The mass stool population technique of sugarcane selection. Proc. Int. Soc. Sugar Cane Technology 14:163-169, (1972).
 
[2]  Hogarth D.M., Methods of selection and estimation of genetic variances in populations of sugarcane. University of Queensland. Dessertation. (1973).
 
[3]  Krishnamurthi. M. and Prasad S.C., Early stages of varietal selection program in Fiji. Proc. Intl. Soc. Sugar cane Technology 17: 1111-1118, (1980).
 
[4]  Krishnamurthi, M., Shanmughasundaram, K., Rajeswari, S., Rafi, M., and Premanand., Pre-release testing of varieties. Proc. 67th Annual Convention. Sugar Technologists’ Association of India 17-30, (2006).
 
[5]  Kottmann, Methods of cane and sugar analysis, CSR. Australia, (1888).
 
[6]  Premanand and Krishnamurthi, Comparison study on quality parameters of small mill and first roller. Internal report. (2006).
 
[7]  Reza Mohammed, In Statistical methods for agricultural sciences. Timber Press, Wiltshire, Portland, Oregon 97225. p 112-113. (1988).
 
[8]  Skinner, J.C., Selection in sugarcane. A review – Proc. Intl- Soc. Sugar cane Technology 14 : 149-162, (1972).
 
[9]  Stevenson, N.D. and Daniels J.,. Screening methods for large clonal populations of sugarcane. II The use of juice electrical conductivity to estimate ash percent juice Intl. Sugar J. 73 : 163-166, (1971).
 
[10]  Stevenson, N.D. and Wilson B,. The mass stool population technique of sugarcane selection. Proc. Intl Soc. Sugarcane Technology 14: 163-169, (1972).
 
[11]  Sugeshwari, R., Krishnamurthi, M and Jeyabal, A. A new method of screening of sugarcane genotypes for red rot (colletotrichum falcatum went) under laboratory condition. Proc.Int.Soc.Sugar Cane Technol., Vol. 28, (2013).