http://oar.icrisat.org/id/eprint/3783 2011-11-07T09:09:35Z info:eu-repo/semantics/descriptiveMetadata http://oar.icrisat.org/3783/ Extra-short-duration pigeonpea for diversifying wheat-based cropping systems in the sub-tropics Dahiya, S S Chauhan, Y S Johansen, C Waldia, R S Sekhon, H S Nandal, J K Pigeonpea The performance of newly developed extra-short-duration pigeonpea (Cajanus cajan) genotypes and traditional short-duration pigeonpea cultivars was compared in rotation with wheat in on-farm trials conducted in 1996–97 and 1997–98 in Sonepat (28° N) district in Haryana, and in 1996–97 at Ludhiana (30° N) district in Punjab, India. At both locations, a wheat crop (Triticum aestivum cv. HD 2329) followed pigeonpea. At Sonepat, an indeterminate extra-short-duration genotype ICPL 88039 matured up to three weeks earlier, yet gave 12% higher yield (1.57 t ha−1) and showed less susceptibility to borer damage than did the short-duration cv. Manak. At Ludhiana, extra-short-duration pigeonpea genotypes, ICPL 88039, ICPL 85010 and AL 201 gave similar grain yields to the short-duration T 21 in spite of maturing three to four weeks earlier. Yields of wheat crops following extra-short-duration genotypes were up to 0.75 t ha−1 greater at Sonepat and up to 1.0 t ha−1 greater at Ludhiana. The results of the study provide empirical evidence that extra-short-duration pigeonpea genotypes could contribute to higher productivity of pigeonpea–wheat rotation systems. Most of the farmers who grew on-farm trials in Sonepat preferred extra-short-duration to short-duration pigeonpea types for their early maturity, bold seed size, and the greater yield of the following wheat crop. Cambridge University Press 2002 Article PeerReviewed application/pdf en http://oar.icrisat.org/3783/1/Expl_Agric_38_1-11_2002.pdf Dahiya, S S and Chauhan, Y S and Johansen, C and Waldia, R S and Sekhon, H S and Nandal, J K (2002) Extra-short-duration pigeonpea for diversifying wheat-based cropping systems in the sub-tropics. Experimental Agriculture, 38 (1). pp. 1-11. ISSN 1469-4441 http://dx.doi.org/10.1017/S001447970200011X info:eu-repo/semantics/objectFile info:eu-repo/semantics/humanStartPage