Reintroduction of Extra Short Duration Pigeonpea (ICPL 88039) in Rice-Wheat Systems of the Indo-Gangetic Plains: RWC Technical Bulletin No. 9.

Pande, S and Gupta, R K and Dahiya, S S and Chauhan, Y S and Singh, S and Singh, U P and Jat, M L and Singh, S S and Sharma, H C and Rao, J N and Chandana, P (2006) Reintroduction of Extra Short Duration Pigeonpea (ICPL 88039) in Rice-Wheat Systems of the Indo-Gangetic Plains: RWC Technical Bulletin No. 9. Technical Report. RWC-ICRISAT, NASC Complex Pusa, New Delhi.

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The authors are grateful to the management of SAUs, ICAR, CIMMYT, ICRISAT and USAID for funding some of the research and development reported in this bulletin. We acknowledge the contribution and support of ICAR institutions and SAU centers for rice and wheat research and crop diversification in facilitating the multi-location initial evaluation and validation trials with ESDP at farmers’ fields. We gratefully acknowledge the contributions of all the farmers who participated and cooperated in conducting on-farm trials. We thank the technical staff of ICAR institutions, RWC, ICRISAT and especially SAUs in the state of Haryana, Uttar Pradesh and Bihar for their support and help in conducting these studies and collecting the relevant data sets. We thank the editor, Ms Sheetal Vyas for making this technical bulletin reader-friendly, and finally Mr D Rangaswamy Reddy from ICRISAT for compiling the technical bulletin and coordinating the production process.

Abstract

Rice–wheat cropping systems (RWCS) are managed on 10 million ha in the Indo Gangetic Plains (IGP) of India. Recent reports, however, indicate that the system is under fatigue and the growth rate of rice and wheat has started declining. Natural resources, particularly soil and water, are threatened because of their over exploitation. Water efficient legumes such as pigeonpea can play an important role in reversing the process of degradation of soil and water resources, and improving the production potential of RWCS. Among legumes, pigeonpea [Cajanus cajan (L.) Millesp] has been an integral part of RWCS and was widely grown in early sixties. However, agricultural polices of the Green Revolution era beginning 1970 focused on increased production through the introduction of input-responsive cultivars of rice and wheat, which not only replaced or marginalized the traditional long and short duration cultivars of pigeonpea but also made them unsuitable even to be used as a break crop in the existing RWCS. It is in this context that ICRISAT developed extra short duration pigeonpea (ESDP) cultivar ICPL 88039. This genotype was evaluated along with traditional cultivars for its suitability as a break crop to restore soil heath, and improve productivity of RWCS. A large volume of literature is available on studies related to the beneficial effects of legumes on the productivity of rice and wheat. In this bulletin, attempts have been made to briefly describe the process and important findings of reintroducing pigeonpea, particularly ESDP genotype ICPL 88039 in the pigeonpea–wheat rotation by scientists from Indian Council of Agricultural Research (ICAR), Rice–Wheat Consortium (RWC) of the Indo-Gangetic Plains, State Agricultural Universities (SAUs) and International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) in partnership with farmers. Efforts were made to identify the constraints and opportunities in growing ICPL 88039 in rotation with wheat for its long term sustainability and resource conservation in RWCS in the IGP. This technical bulletin provides information on the abiotic, biotic and socio-economical constraints that can limit ICPL 88039 production in the RWCS. Color photographs are included to facilitate identification of insect and diseases. A package of practices for ICPL 88039 is also included for use of the farmers, researchers and scientists.

Item Type: Monograph (Technical Report)
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Mandate crops > Pigeonpea
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 10 Oct 2011 03:32
Last Modified: 10 Oct 2011 03:32
URI: http://oar.icrisat.org/id/eprint/2121
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