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Table 10 Cropping calendar and cycle of accessions in each region

From: Ethnobotanical study of cowpea (Vigna unguiculata (L.) Walp.) in Senegal

Features Conditions Regions Total % Chi-Square
Th Lg Dl Fk Sd Kg SL Value df p-Value
Sowing date June–July 83 34 103 81 63 11 0 375 53.42 455.5a 12  < 0.001
Aug–Sept 1 121 55 4 16 8 94 299 42.60    
Nov–Jan 0 0 0 0 0 0 28 28 3.99    
Total 84 155 158 85 79 19 122 702 100.00    
Harvest date Sept–Oct 84 155 158 84 79 10 86 656 93.44 302.6a 18  < 0.001
Nov 0 0 0 0 0 8 8 16 2.28    
Feb–March 0 0 0 0 0 1 28 29 4.13    
DNR 0 0 0 1 0 0 0 1 0.14    
Total 84 155 158 85 79 19 122 702 100.00    
Cycle  < 70 45 133 148 81 79 3 82 571 81.34 251.955a 18  < 0.001
70–90 0 16 7 2 0 1 1 27 3.84    
 ≥ 90 39 6 3 1 0 15 39 103 14.67    
DNR 0 0 0 1 0 0 0 1 0.14    
Total 84 155 158 85 79 19 122 702 100.00    
  1. The p. value of the chi2 test for the sowing dates, harvest dates and length of cycle is below 0.001. The hypothesis of the independence between these variables and the regions has been rejected as a result. Th Thiès; Lg Louga; Dl Diourbel; Fk Fatick; Sd Sédhiou; Kg Kédougou; SL Saint-Louis; MS sowing date; MR harvest date; June-July June and July; Aug-Sept August and September; Nov-Jan November to January; Sept-Oct September and October; Feb-March February and March