Development of new cytoplasmic-genetic male-sterile lines in pigeonpea from crosses between Cajanus cajan (L.) Millsp.and C. scarabaeoides (L.) Thouars

• Authors: T. Kalaimagal , A. Muthaiah , S. Rajarathinam , S. Malini , N. Nadarajan , I. Pechiammal
• Languages of publication: EN

Abstracts

EN

Exploitation of hybrid vigour is quite possible in cross-pollinated crops. However, pigeonpea is a grain legume crop with a moderate level of cross-pollination (20?70%), which is mainly aided by insect pollinators. As a first step, hybrids based on genetic male sterility (GMS) were developed in pigeonpea, but the hybrid seed production technique is not farmer-friendly, because in the hybrid seed production plot 50% of the population, which are male-fertile in the female rows, have to be eliminated in time before contamination. This requires skilled labour and is a time-consuming process, which increases the cost of hybrid seed production. Therefore, the objective of this study was to develop cytoplasmic-genetic male-sterile (CGMS) lines in pigeonpea through wide hybridization, which would be very suitable for hybrid seed production. Two CGMS lines, viz. CORG 990052 A and CORG 990047, were developed by interspecific hybridization of Cajanus cajan and C. scarabaeoides. Restorers were identified and three CGMS-based pigeonpea hybrids were developed. The hybrid COPH 3 is found to be promising in Tamil Nadu State, India.

Keywords

EN

CAJANUS CAJAN   CAJANUS SCARABAEOIDES   FERTILITY   HYBRID   MALE STERILITY   PIGEONPEA  

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 2008
• Volume: 49
• Issue: 3
• Pages: 221-227
• Document Type: ARTICLE
• Publication order reference: T. Kalaimagal, Plant Breeding and Genetics, Department of Pulses, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore- 641003, India