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OCR for page 65
The National Plant Genome Initiative: Objectives for 2003–2008
APPENDIX C
Number of Publications in 2000–01 of 50 Most Cultivated Species
The 50 most-cultivated species were found by searching FAO’s FAOSTAT agricultural database of primary crops by area harvested. The number of publications was obtained by searching ISI’s Web of Science, a data base of 5,700 journals, for keywords (species or genus names) in titles of articles. Number of research groups was estimated by eliminating research groups bearing the same institutional address and at least one common author (to avoid double counting). Model species are provided as references. Frequently cited papers are defined as being among the top 5 most-commonly cited papers in 2000 and 2001.
Rank
Most Cultivated Crops Common Name
Area Cultivated (ha)
Key Word Searched
Average number of publications 2000/01
Average number of research groups 2000/01
Average times that a frequently cited paper is cited 2000/01
1
Wheat
213,816,865
Triticum durum
11
10
2
Wheat
213,816,865
Triticum aestivum
88
78
8
2
Rice, Paddy
151,541,091
Oryza sativa
113
90
9
Rice, Paddy
151,541,091
Oryza
124
101
10
3
Maize
137,596,759
Zea mays
88
81
7
4
Soybeans
75,539,904
Glycine max
54
46
3
5
Barley
54,268,528
Hordeum vulgare
42
40
6
OCR for page 66
The National Plant Genome Initiative: Objectives for 2003–2008
Rank
Most Cultivated Crops Common Name
Area Cultivated (ha)
Key Word Searched
Average number of publications 2000/01
Average number of research groups 2000/01
Average times that a frequently cited paper is cited 2000/01
6
Sorghum
42,634,739
Sorghum bicolor
24
22
4
7
Millet
37,401,852
Pennisetum
19
17
1
Millet
37,401,852
Echinochloa
9
8
1
Millet
37,401,852
Panicum
8.5
7
2
Millet
37,401,852
Setaria
8
6
1
Millet
37,401,852
Paspalum
16
14
2
8
Seed Cotton
33,978,922
Gossypium
30
28
3
9
Groundnuts in Shell
25,538,439
Arachis hypogaea
28
27
3
10
Rapeseed
23,961,310
Brassica campestris
11
9
9
Rapeseed
23,961,310
Brassica napus
76
70
7
Rapeseed
23,961,310
Brassica rapa
21
19
4
11
Beans, Dry
23,240,843
Phaseolus vulgaris
73
67
5
Beans, Dry
23,240,843
Phaseolus
89
82
5
12
Potatoes
19,301,006
Solanum tuberosum
47
44
4
13
Sugar Cane
19,245,069
Saccharum officinarum
9
9
0
14
Sunflower Seed
18,397,973
Helianthus annuus
33
31
3
15
Cassava
17,019,975
Manihot esculenta
19
14
3
16
Alfalfa for Forage+Silage
15,728,690
Medicago sativa
26
24
4
17
Oats
12,863,933
Avena
26
24
3
18
Coconuts
10,833,538
Cocos nucifera
8
7
1
19
Coffee, Green
10,766,384
Coffea
21
16
3
20
Cow Peas, Dry
9,862,865
Vigna
52
49
3
Cow Peas, Dry
9,862,865
Vigna unguiculata
23
23
3
21
Oil Palm Fruit
9,712,150
Elaeis guineensis
11
11
2
22
Rye
9,672,849
Secale cereale
16
14
3
23
Sweet Potatoes
9,391,910
Ipomoea batatas
12
13
2
24
Chick-Peas
8,582,102
Cicer arietinum
25
23
2
25
Olives
8,076,533
Olea europeaea
14
13
5
26
Natural Rubber
7,903,421
Hevea
14
13
2
OCR for page 67
The National Plant Genome Initiative: Objectives for 2003–2008
Rank
Most Cultivated Crops Common Name
Area Cultivated (ha)
Key Word Searched
Average number of publications 2000/01
Average number of research groups 2000/01
Average times that a frequently cited paper is cited 2000/01
27
Sesame Seed
7,783,611
Sesamum indicum
10
9
1
28
Grapes
7,305,355
Vitis vinifera
40
37
5
29
Citrus Fruit/Total
7,201,853
Citrus
185
152
5
30
Cocoa Beans
7,186,666
Theobroma
13
12
1
31
Peas, Dry
6,227,031
Pisum sativum
56
49
9
32
Sugar Beets
5,979,044
Beta vulgaris
25
23
6
33
Apples
5,594,443
Malus
24
23
3
33
Apples
5,594,443
Malus domestica
9
8
1
34
Plantains
4,671,010
Musa
25
24
3
34
Bananas
4,201,809
Musa
25
24
3
35
Tobacco Leaves
4,182,338
Nicotiana tabacum
40
36
4
36
Yams
4,050,872
Dioscorea
14
14
0
37
Pigeon Peas
3,830,215
Cajanus cajan
14
14
1
38
Lentils
3,765,463
Lens culinaris
10
10
2
39
Tomatoes
3,745,229
Lycopersicon
66
60
4
39
Tomatoes
3,745,229
Lycopersicon esculentum
43.5
41
4
40
Oranges
3,598,625
Citrus sinensis
8
7
1
41
Watermelons
3,133,412
Citrullus
7
6
1
42
Triticale
3,059,216
Triticale
30
26
2
43
Mangoes
3,036,343
Mangifera indica
18
16
1
44
Linseed
3,032,743
Linum usitatissimum
13
13
1
45
Buckwheat
2,787,780
Fagopyrum esculentum
5
5
1
46
Cashew Nuts
2,767,486
Anacardium occidentale
5
5
0
47
Onions, Dry
2,738,699
Allium cepa
27
23
5
48
Cabbages
2,623,010
Brassica oleraceae
36
31
7
49
Clover for Forage+Silage
2,362,691
Trifolium
37
34
5
50
Plums
2,295,961
Prunus domestica
2
2
0
OCR for page 68
The National Plant Genome Initiative: Objectives for 2003–2008
Rank
Most Cultivated Crops Common Name
Area Cultivated (ha)
Key Word Searched
Average number of publications 2000/01
Average number of research groups 2000/01
Average times that a frequently cited paper is cited 2000/01
Other Model & Reference Species
Arabidopsis thaliana
277
235
31
Brachypodium
2
2
1
Chlamydomonas
100
79
16
Lotus
24
21
7
Medicago trunculata
20
17
11
Populus
64
55
11
SOURCE: FAOSTAT, 2001 , http://apps.fao.org/page/collections?subset=agriculture; ISI Web of Science, 2000–2001 .
Representative terms from entire chapter:
frequently cited