EXTRA-SHORT-DURATION PIGEONPEA FOR DIVERSIFYING WHEAT-BASED CROPPING SYSTEMS IN THE SUB-TROPICS
| Autor: | H. S. Sekhon, Y. S. Chauhan, S S Dahiya, R. S. Waldia, C. Johansen, J. K. Nandal |
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| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | Experimental Agriculture. 38:1-11 |
| ISSN: | 1469-4441 0014-4797 |
| DOI: | 10.1017/s001447970200011x |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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