Abstract
An experiment was laid out in a randomized block design (RBD) with three replications to evaluate genetic diversity of 12 varieties of marigold using Multivariate genetic divergence analysis (Mahalanobis, 1936). Based on D2 values, all the 12 marigold varieties were grouped into two clusters. Cluster I consisted of 11 varieties, viz., Pusa Narangi Gainda, Pusa Basanti Gainda, Pusa Arpita, Hajo Orange, Mumbai Orange, Hajo Yellow, Sunrise Orange, Hawaii Orange, Calcutta Orange, Calcutta Yellow, Yellow Babuda; while cluster II consisted of only Seracole. The inter-cluster distance between the two clusters I and II was found to be 190.58. The cluster means for most of the characters differed considerably. The intra- cluster distance of cluster I was 42.09 while it was zero for cluster II being with only one variety. The inter-cluster distance being larger than the intra cluster distance suggested wider genetic diversity among the varieties at the two different clusters indicating that crosses may be attempted between the varieties of the cluster I with that of Seracole, the only variety of cluster II to obtain new desirable recombinants in marigold.
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Claims 4
Claim · model-written summary
The 12 marigold varieties were grouped into two clusters, with cluster II consisting only of Seracole.
- Taxon
- Tagetes erecta
Tagetes erectat0 - Outcome
- grouped into two clusterse1
- Qualifier
- cluster II consisted of only Seracolee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Marigold (Tagetes erecta)”
e1“Based on D2 values, all the 12 marigold varieties were grouped into two clusters”
e2“while cluster II consisted of only Seracole”
Claim · model-written summary
The inter-cluster distance (190.58) was larger than the intra cluster distance of cluster I (42.09) among marigold varieties.
- Taxon
- Tagetes erectaTagetes erectat0
- Outcome
- inter-cluster distancee1
- Direction
- largere2
- Value
- 190.58e1
- Qualifier
- 42.09e3
- Comparator
- intra cluster distancee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Marigold (Tagetes erecta)”
e1“The inter-cluster distance between the two clusters I and II was found to be 190.58”
e2“The inter-cluster distance being larger than the intra cluster distance suggested wider genetic diversity among the varieties at the two different clusters”
e3“The intra- cluster distance of cluster I was 42.09”
Claim · model-written summary
Cluster means differed considerably for most characters among marigold varieties.
- Taxon
- Tagetes erectaTagetes erectat0
- Outcome
- cluster means for most of the characterse1
- Qualifier
- differed considerablye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Marigold (Tagetes erecta)”
e1“The cluster means for most of the characters differed considerably”
Claim · model-written summary
The authors recommend crossing cluster I varieties with Seracole to obtain new desirable marigold recombinants.
- Taxon
- Tagetes erectaTagetes erectat0
- Outcome
- new desirable recombinantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Marigold (Tagetes erecta)”
e1“indicating that crosses may be attempted between the varieties of the cluster I with that of Seracole, the only variety of cluster II to obtain new desirable recombinants in marigold”