By Snapp S.   Aggarwal V.   Chirwa R.   in Field Crops Research

ISSN:0378-4290|58|3|205-212

Elsevier‎(1998)‎

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By Hillocks R.   Madata C.   Chirwa R.   Minja E.   Msolla S.   in Euphytica

ISSN:0014-2336|150|1-2|215-231

Springer Publishing Company ‎(2006)‎

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