de Graaff, N.A
347  Ergebnisse:
Personensuche X
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4

Biosecurity in the Movement of Commodities as a Component o..:

, In: The Role of Plant Pathology in Food Safety and Food Security,
van der Graaff, N. A. ; Khoury, W. - p. 25-39 , 2009
 
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6

International plant protection; the role of FAO:

Graaff, N. A.
Netherlands Journal of Plant Pathology.  99 (1993)  S3 - p. 93-102 , 1993
 
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8

Selection of Arabica coffee types resistant to coffee berry.. 

Mededelingen / Landbouwhogeschool Wageningen ; 81,11
Exemplar:  Zentrale:Magazin cv 9364
 
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9

Resistance to Gibberella xylarioides in Coffea arabica: eva..:

Pieters, R. ; Graaff, N. A.
Netherlands Journal of Plant Pathology.  86 (1980)  1 - p. 37-43 , 1980
 
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10

Resistance levels in Coffea arabica to Gibberella xylarioid..:

Graaff, N. A. ; Pieters, R.
Netherlands Journal of Plant Pathology.  84 (1978)  4 - p. 117-120 , 1978
 
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11

Selection for resistance to coffee berry disease in arabica..:

Graaff, N. A.
Netherlands Journal of Plant Pathology.  84 (1978)  6 - p. 205-215 , 1978
 
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12

Cosmic rays inside the earth. I:

Clay, J. ; Wiersma, J.T. ; Graaff, G.N.
Physica.  1 (1934)  7-12 - p. 659-662 , 1934
 
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