Frequency of natural out-crossing in partially cleistogamous pigeonpea lines in diverse environments

Saxena, K B and Jayasekera, S J B A and Ariyaratne, H P and Ariyanayagam, R P and Fonseka, H H D (1994) Frequency of natural out-crossing in partially cleistogamous pigeonpea lines in diverse environments. Crop Science, 34 (3). pp. 660-662. ISSN 0011-183X

[img] PDF - Published Version
Restricted to ICRISAT users only

Download (80kB) | Request a copy

Abstract

Natural out-crossing is the major cause of loss of varietal purity in pegeonpea [Cajanus cajan (L.) Millsp.]. The frequency of natural out-crossing of partially cleistogamous mutant lines, characterized by a modified keel and filamentous anthers, was studied at two locations in Sri Lanka and three locations in India. Indeterminate growth habit and normal floral morphology were used as dominant markers and the frequency of anural out-crossing was estimated as percentage of the observed hybrid plants. Natural out-crossing in the mutant lines in Sri Lanka ranged from 0.14 to 1.33% in comparison to 6.34 to 19.64% in the controls. In the Indian environments, natural outcrossing ranged from 0.16 to 2.67%. The mutant was higly stable over diverse environments, and may be of considerable economic importance in pigeonpea improvement and seed-production programs.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Mandate crops > Pigeonpea
Others > Climate Change
Depositing User: Mr B K Murthy
Date Deposited: 04 Dec 2011 06:12
Last Modified: 04 Dec 2011 06:13
URI: http://oar.icrisat.org/id/eprint/4689
Official URL: http://dx.doi.org/10.2135/cropsci1994.0011183X0034...
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
Links:

Actions (login required)

View Item View Item