Changes in the polysaccharides of the tea plant during post-prune growth

The Effect of Pruning at Different Heights on Yields, Dry Matter Production and Partitioning in Clonal Tea (Camellia Sinensis) in Kenya

“…Normally, pruning practices of old tea bushes concentrate on the removal of above-ground parts and have little concern with the root system. The root system is only considered in connection with carbohydrate reserves during recovery from pruning of above-ground parts (Nagarajah and Pethiyagoda, 1965;Selvendran and Selvendran, 1972). A point which is often overlooked is that, while conventional pruning of tea bushes causes a severe reduction in the proportion of above-ground parts, it increases that of the root system and particularly the old large roots.…”

Formation of black tea aroma

“…Further investigation identified other biochemical factors in fresh tea flush which are presumably needed for the formation of terpenes (Cornforth, 1968;Loomis, 1967). Specifically, Wickremasinghe et al (1969) detected the enzyme transaminase and the cofactors Coenzyme A, manganese, and iron in fresh tea flush; and Selvendran (1969) investigated the metabolism of nucleotides and phosphate esters in tea leaf material during black tea manufacture.…”

“…First, the volatiles present in fresh tea flush must be formed biosynthetically and some of these compounds remain in the tea leaf material throughout the black tea manufacturing process to form a portion of the black tea aroma complex. Second, the precursors of the black tea aroma constituents which are formed during the black tea manufacturing process must be formed biosynthetically, and many of the precursors are formed by biosynthetic mechanisms requiring the enzymes and cofactors identified in tea leaf material by Wickremasinghe and Sivapalan (1966), Wickremasinghe et al (1969), andSelvendran (1969). Third, some biosynthetic activity may go on in tea leaf material during the black tea manufacturing process, and the results of Wickremasinghe and Sivapalan (1966) suggest that this is the case.…”

Yaş Çay (Camelia sinensis L.) Verimi ve Kalite Özelliklerinin Güneşlenme Durumu ve Sürgün Dönemlerine Göre Değişimi

“…Çalışmamızda yaş çaydaki en yüksek ham selüloz değeri güneşlenme durumuna göre günün yarısı güneşli bahçede (%16.882), en düşük gölgeli bahçede (%15.328); sürgün dönemleri açısından da en fazla 3. sürgün (%16.497), en az 1. sürgün (%15.554) döneminde belirlenmiştir. Yaş çaydaki ham selüloz miktarı üzerine yapılan çalışmalarda bitki gelişmesi ilerledikçe bitki bünyesindeki mineral maddeler ve protein oranının azaldığı, buna karşılık ham selüloz oranının arttığı belirtilmektedir [6,17,23,24]. Bu literatürlerde çalışma sonuçlarımızı desteklemektedir.…”