Title of article
Responses of some Iranian tea [Camellia sinensis (L.) O. Kuntze] clones to drought stress
Author/Authors
Safaei Chaeikar, S Tea Research Center - Horticultural Science Research Institute - Agricultural Research - Education and Extension Organization - Lahijan, Iran , Roofigari Haghighat, Sh Tea Research Center - Horticultural Science Research Institute - Agricultural Research - Education and Extension Organization - Lahijan, Iran , Azadi, R Tea Research Center - Horticultural Science Research Institute - Agricultural Research - Education and Extension Organization - Lahijan, Iran , Marzvan, S University of Zanjan - Zanjan, Iran
Pages
16
From page
45
To page
60
Abstract
Drought is one of the most important environmental stresses affecting tea plantation productivity in tea growing areas. Nine field-grown tea [Camellia sinensis (L.) O. Kuntze] clones in the north of Iran were subjected to drought stress by withholding irrigation for 50 days. The effects of drought stress were measured by studying growth and morphological (shoot number, shoot length, shoot fresh weight, length of 5th leaf, width of 5th leaf, green leaf yield), physiological (relative water content), biochemical (proline and total sugar content), and chemical (polyphenol) attributes after 50 days from the time drought stress was imposed. Drought stress resulted in decrease in growth and morphological characteristics, polyphenol content, and an increase in proline and total sugar concentration, that was attributed to reduction of RWC of leaves. Grouping of clones showed that clones 276, 100, and 285 formed drought-tolerant group. These tea clones can be used in the national tea breeding programs for improvement of drought tolerance.
Keywords
water stress index , total sugar , relative water content , polyphenol , proline , antioxidant activity , tea
Journal title
Crop Breeding Journal (C. B. Journal)
Serial Year
2019
Record number
2623424
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