Characterization data of NPGRL cowpea accessions (2009-2010)
NPGRL characterization dataset describing 74 cowpea accessions using 44 descriptors 40 of which are agro-morphological traits done in 2009-2010 using IPGRI cowpea descriptors and UPOV traits for Vigna. The accessions are part of the cowpea germplasm materials conserved at NPGRL. NPGRL regenerates and characterizes cowpea accession to primarily to assist the plant breeders and other researches.
Presence/absence of V-mark on leaflets
Intensity of leaf colour
Recorded for the terminal leaflet of a young, mature leaf in the sixth week after sowing
Recorded for stem, branches, petioles and peduncles in the sixth week after sowing
Evaluated in the sixth after sowing
Based on plant width and height 3-4 weeks after sowing
Number of days from planting to 50% seedling emergence
In cm. Mean of the 10 longest mature pods from 10 randomly selected plants
In cm. Mean width of 10 pods measured for length in 5
Recorded when pods are full grown
In cm. Recorded when peduncles have grown full length. Mean length of 10 peduncle, one from each randomly selected plants
Pattern of pigment distribution on full grown immature pods
Number of days from sowing to stage when 50% of plants have mature pods
Of mature pods
Days from first flowers to stage when 50% of the plants have finished flowering
Of mature pods
In mm. Mean of 10 mature seeds excluding those from the extremities of pods
In mm; the mean length of 10 freshly opened flowers
In mm. Mean width from hilum to keel of the ten seeds measured for length in 3
Of newly opened flowers
Recorded when peduncle have reached full length
In mm. Mean thickness of the ten seeds measured for length in 3 ; measured perpendicular to length and width
Number of days from planting to 50% of plants with at least one open flower
The branches whose origin is in the leaf axils on the main stem; recorded in the 8th week after sowing
A visual estimate of seed compression, being indicative of spacing within the pod
Recorded in mm
Recorded in mm
Weight of 100 seeds in g, moisture content 12%
Recorded in cm, the widest dimension of the terminal leaflet whose shape was recorded in 5
Recorded in cm for the terminal leaflet whose shape was recorded in 5
Recorded under total insect control. Mean of 10 randomly selected peduncles
Mean number of 10 pods
List of accessions included in the dataset