@article{icrisat3783,
           title = {Extra-short-duration pigeonpea for diversifying wheat-based cropping systems in the sub-tropics},
       publisher = {Cambridge University Press},
          author = {S S Dahiya and Y S Chauhan and C Johansen and R S Waldia and H S Sekhon and J K Nandal},
           pages = {1--11},
            year = {2002},
          volume = {38},
         journal = {Experimental Agriculture},
          number = {1},
             url = {http://oar.icrisat.org/3783/},
        abstract = {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.}
}