caa a22 4500 445324341 CHVBK 20180317142715.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10681-011-0399-9 doi (NATIONALLICENCE)springer-10.1007/s10681-011-0399-9 Morpho-physiological and phenological attributes of reproductive biology of tea ( Camellia sinensis (L.) O. Kuntze) in Sri Lanka [Elektronische Daten] [H. Ariyarathna, M. Gunasekare, J. Kottawa-Arachchige, R. Paskarathevan, K. Ranaweera, M. Ratnayake, J. Kumara] A comprehensive knowledge on reproductive traits is a prerequisite in utilizing the existing tea germplasm effectively for crop improvement to develop superior planting material for grower acceptance and market profitability. The Sri Lankan tea germplasm was characterized based on reproductive traits viz. floral morphology, pollen biology, stigma receptivity and phenology of flowering and fruit set. The variability in floral morphology, especially the style morphological features, formed phenotypic clines rather than distinct groups. Studies on pollen biology and stigma receptivity revealed significant variability and asynchrony that could result unequal reproductive success among the genotypes. Four distinct patterns were predictable among the genotypes based on flower and fruit abundance and the time of flowering and fruit set. Three well marked flowering periods occurred in February to April, July and in November. Nonetheless, major flowering period coincided February and March in all the genotypes allowing free crossing between the different genotypes. Profuse mature fruit crop was obtained in February to May. Approximately 26% success was achieved in tea controlled hybridization programmes. Fruits carry two seeds on average and became mature in 8-9 months after pollination. Zygotic development in tea takes more than 1 month after pollination and early embryonic development continued for 4 months after pollination. The indexing of the morpho-physiological diversity and the phenological calendars of flowering and fruit set made available in the study are of significant importance in effective utilization of the tea germplasm for crop improvement. Springer Science+Business Media B.V., 2011 Camellia sinensis (L.) O. Kuntze nationallicence Reproductive morpho-physiology nationallicence Phenology nationallicence Fecundity nationallicence Early seed development nationallicence Ariyarathna H. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut Gunasekare M. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut Kottawa-Arachchige J. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut Paskarathevan R. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut Ranaweera K. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut Ratnayake M. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut Kumara J. Department of Export Agriculture, Sabaragamwa University of Sri Lanka, Belihuloya, Sri Lanka aut Euphytica Springer Netherlands 181/2(2011-09-01), 203-215 0014-2336 181:2<203 2011 181 10681 https://doi.org/10.1007/s10681-011-0399-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-011-0399-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ariyarathna H. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut NATIONALLICENCE 700 1- Gunasekare M. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut NATIONALLICENCE 700 1- Kottawa-Arachchige J. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut NATIONALLICENCE 700 1- Paskarathevan R. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut NATIONALLICENCE 700 1- Ranaweera K. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut NATIONALLICENCE 700 1- Ratnayake M. Plant Breeding Division, Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka aut NATIONALLICENCE 700 1- Kumara J. Department of Export Agriculture, Sabaragamwa University of Sri Lanka, Belihuloya, Sri Lanka aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 181/2(2011-09-01), 203-215 0014-2336 181:2<203 2011 181 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer