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.
Leaf marking
Presence/absence of V-mark on leaflets
Leaf color
Intensity of leaf colour
Terminal leaflet shape
Recorded for the terminal leaflet of a young, mature leaf in the sixth week after sowing
Plant pigmentation
Recorded for stem, branches, petioles and peduncles in the sixth week after sowing
Growth habit
Evaluated in the sixth after sowing
Plant vigor
Based on plant width and height 3-4 weeks after sowing
Days to emergence
Number of days from planting to 50% seedling emergence
Pod length
In cm. Mean of the 10 longest mature pods from 10 randomly selected plants
Pod width
In cm. Mean width of 10 pods measured for length in 5
Pod attachment to peduncle
Recorded when pods are full grown
Peduncle length
In cm. Recorded when peduncles have grown full length. Mean length of 10 peduncle, one from each randomly selected plants
Immature pod pigmentation
Pattern of pigment distribution on full grown immature pods
Days to first mature pods
Number of days from sowing to stage when 50% of plants have mature pods
Pod curvature
Of mature pods
Duration of flowering
Days from first flowers to stage when 50% of the plants have finished flowering
Mature pod color
Of mature pods
Seed length
In mm. Mean of 10 mature seeds excluding those from the extremities of pods
Calyx lobe length
In mm; the mean length of 10 freshly opened flowers
Seed width
In mm. Mean width from hilum to keel of the ten seeds measured for length in 3
Flower pigment pattern
Of newly opened flowers
Raceme position
Recorded when peduncle have reached full length
Seed thickness
In mm. Mean thickness of the ten seeds measured for length in 3 ; measured perpendicular to length and width
Days to flowering
Number of days from planting to 50% of plants with at least one open flower
Number of main branches
The branches whose origin is in the leaf axils on the main stem; recorded in the 8th week after sowing
Seed crowding
A visual estimate of seed compression, being indicative of spacing within the pod
Stipule width
Recorded in mm
Stipule length
Recorded in mm
100 seed weight
Weight of 100 seeds in g, moisture content 12%
Terminal leaflet width
Recorded in cm, the widest dimension of the terminal leaflet whose shape was recorded in 5
Terminal leaflet length
Recorded in cm for the terminal leaflet whose shape was recorded in 5
Number of pods per peduncle
Recorded under total insect control. Mean of 10 randomly selected peduncles
Number of locules per pod
Mean number of 10 pods
数据集中的种质资源列表