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Cajanus scarabaeoides
''Cajanus scarabaeoides'' is a flowering plant in the genus ''Cajanus'' Of the 32 different species within the genus ''Cajanus'', only one, ''C. cajan'' (pigeonpea), is cultivated. ''Cajanus scarabaeoides'' is the closest wild relative to ''C. cajan'', and is one of the easiest wild species to cross with pigeonpea cultivars. ''C. scarabaeoides'' is found naturally in both temperate and tropical zones around the globe.〔 This species has higher levels of drought tolerance, is found to have greater protein content, and has higher levels of resistance to insect pests compared to cultivated types.〔〔(【引用サイトリンク】url=http://www.icrisat.org/text/research/grep/homepage/grephomepage/archives/wild.htm )〕 These genetic traits can be crossed with ''C. cajan'' to improve the crop’s productivity. For subsistence farmers, this can reduce economic losses and drastically improve overall crop yield.
== Description ==
''Cajanus scarabaeoides'' is a very close wild relative species of ''Cajanus cajan'' (common name, pigeonpea).〔 It is a dicot angiosperm belonging to the Fabaceae family. ''C. scarabaeoidis'' may be an annual or a perennial, making it a flexible crop for subsistence farmers.〔
The branches of ''C. scarabaeoides'' can be straight or winding and up to 135 cm in length. ''C. scarabaeoides'' has pinnate leaves, typically arranged in a trifoliate manner with flowers that are yellow with red veins. The pods of ''C. scarabaeoides'' are oblong in shape, typically 11–34 mm in length and 6–10 mm in width. The seedpods are densely covered in a combination of short and long hairs and are typically a dark purple colour, containing anywhere from 1-7 seeds. The seeds of ''C. scarabaeoides'' range from 2.4–4 mm long, 1.8–3 mm wide, and 1–2 mm thick and are either black in colour or speckled. Compared to the pigeonpea cultivars, ''C. scarabaeoides'' has a higher pod seed percentage, 74% compared to 20%, and has more multiseed pods, on average 6.04 seeds compared to 3.0 seeds〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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