TY  - JOUR
N2  - 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.
AV  - restricted
A1  - Dahiya, S S
A1  - Chauhan, Y S
A1  - Johansen, C
A1  - Waldia, R S
A1  - Sekhon, H S
A1  - Nandal, J K
TI  - Extra-short-duration pigeonpea for diversifying wheat-based cropping systems in the sub-tropics
UR  - http://dx.doi.org/10.1017/S001447970200011X
JF  - Experimental Agriculture
SP  - 1
Y1  - 2002///
ID  - icrisat3783
EP  - 11
SN  - 1469-4441
VL  - 38
PB  - Cambridge University Press
IS  - 1
ER  -