Cytoplasmic genic male-sterility in pigeonpea and its utilization in hybrid breeding programme

Saxena, K B and Tikka, S B S and Mazumder, N D (2004) Cytoplasmic genic male-sterility in pigeonpea and its utilization in hybrid breeding programme. In: Pulses in new perspective: proceedings of the National Symposium on Crop Diversification and Natural Resource Management, 20-22 December 2003, Indian Institute of Pulse Research, Kanpur, India.

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For commercial exploitation of heterosis in any crop, it is to develop an economically viable mass pollen transfer mechanism. The natural out-crossing pigeonpea occurs primarily due to insect visitations. wide range of natural is reported to be due to a number of factors, and number and types of pOllinating vectors being the most important one. The discovery of stable male sterility systems, availability natural out-crossing and evidence of heterotic advantage have set a perlect breaking the persisting yield plateau in pigeon pea through hybrid breeding. In spite of six genic male sterility based pigeonpea hybrids at the national level this technology was not adopted by seed sector. The second breakthrough came with the development of cytoplasmic genic male sterile lines in pigeon pea. To broaden the genetic base of newly established cytoplasmic genic male sterility systems in pigeonpea, twelve agronomically superior and good combiner lines were selected. These were Pusa 33, lCPL 87, GT 100, SKNP 289, SKPN 290, BDN 2, SKNP 88-3, SKNP 9523, T 15-15, T 21, UPAS 120 and lCPL 84023. These genotypes were converted into CMS lines through simple backcross breeding method. To study the stability of fertility restoration, 41 experimental hybrids were evaluated at Kanpur, Akola, SK Nagar and Faizabad. It was observed that the hybrids developed at SK Nagar and expressed high pollen fertility at both SK and Faizabad. However, at Kanpur, a variation for pollen fertility was recorded while at hybrids were almost male with pollen fertility ranging from 0 to 35%. This data indicated a significant role of environment in the expression of fertility restorer genes. Therefore, an attempt should be made to breed high yielding hybrid specifically adapted to region rather than aiming for widely adapted hybrids.

Item Type: Conference or Workshop Item (Paper)
Subjects: Mandate crops > Pigeonpea
Depositing User: Users 6 not found.
Date Deposited: 24 Nov 2011 05:23
Last Modified: 22 Aug 2013 05:46
Acknowledgement: UNSPECIFIED
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