New Zealand Journal of Crop and Horticultural Science abstracts
Variations in chlorophylls, carotenoids, protein, and secondary metabolites
amongst ginger (Zingiber officinale Rosc.) cultivars and their
association with rhizome yield
S. RAI
A. B. DAS
P. DAS
Cytogenetics Laboratory
Regional Plant Resource Centre
Bhubaneswar 751015
Orissa, India
email: rpcbbs@ori.nic.in
email: nibcr@dte.vsnl.net.in
Abstract Chlorophyll
a,
b,
a:
b,
carotenoid, carbohydrates, sugar, protein, and polyphenol content were
estimated and their association with rhizome yield compared in 10 cultivars of
ginger (
Zingiber officinale Rosc.). The analyses indicated significant
differences amongst the cultivars for all the studied parameters. The highest
fresh rhizome yield (462.6 g/plant) was recorded in `Gorubathaney' and the
lowest (234.5 g/plant) in `Suprava'. Higher rhizome yields were highly
associated with grater chlorophyll
a and carbohydrate (
r = 0.52
and 0.60 respectively) and lower polyphenol (
r = -0.15) levels in the
leaf. The protein content in the leaves of ginger showed significant
correlation with carbohydrates and chlorophyll
a:
b ratio (
r
= 0.55 and
r = 0.76 respectively). The chlorophyll
a:
b
ratio also showed highly positive correlation with carbohydrate content (
r
= 0.92) of leaf. However, polyphenols showed a significant positive
correlation with chlorophyll
b and carotenoids and carotenoids with
chlorophyll
a and chlorophyll
b.
Keywords carbohydrate; chlorophyll a:b ratio;
correlation; ginger; leaf proteins; photosynthetic pigments; polyphenols;
rhizome yield
H98010
Received 17 February 1998; accepted 14 December 1998
Short communication
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