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A complex dormancy mechanism in seeds of the weed Rubus cuneifolius
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. van Staden --- Department of Botany, PetaL. Campbell --- ,Both the endocarp and embryo contribute to the dormancy of Rubus cuneifolius seed. Whereas scarification was found to break the dormancy imposed by the endocarp, embryo dormancy could only be overcome by a combination of treatments. These treatments consisted of... -
Scarification and stratification of Combretum erythrophyllum (Burchell) seed and fruit for uniformity in germination
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Wickens --- Applied Natural Sciences, Republic of South Africa W.G. Gaum --- Applied Natural Sciences, Republic of South AfricaDifferent scarification and stratification processes were used to soften River Bushwillow or Combretum etythrophyllun (Burchell) fruit and seed coverings and to determine the percentage, rate and uniformity of germination. Treatments included stratification, hot water scarification, leaching in cold water, soaking... -
Comparison of the effects of mechanical scarification and gibberellic acid treatments on seed germination in Pterocarpus angolensis
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: E Chisha-Kasumu S Woodward A PricePterocarpus angolensis is a savanna tree species growing mostly in the miombo and undifferentiated woodlands found in the southern and central parts of Africa. Exploitation for its medicinal and commercial uses has led to a diminishing of wild populations. Artificial... -
Assessment of soil surface scarification and reseeding with sulla (Hedysarum coronarium L.) of degraded Mediterranean semi-arid rangelands
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Slim Slim --- , Tunisia Mounir Louhaichi --- , Tunisia Mouldi Gamoun --- , Tunisia Serkan Ates --- , United States Sawsan Hassan --- , Jordan Oumeima Ben Romdhane --- , Tunisia Azaiez Ouled Belgacem --- , United Arab EmiratesClimate change and degradation of natural resources pose daunting challenges in arid and semi-arid rangelands of southern Mediterranean region. Overcoming these challenges requires considerable management actions efforts. In this context, the current two-year (2017/2018 and 2018/2019) study investigated the effects... -
Overcoming seed dormancy of Pterocarpus angolensis DC. (umbila) and the evaluation of different substrates in seedling establishment
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Nilso Mangue --- Eduardo Mondlane University, Mozambique Milton Pinho --- Eduardo Mondlane University, Mozambique Énia Amós --- Eduardo Mondlane University, Mozambique Ciro Santana --- Eduardo Mondlane University, Mozambique Sónia Ventura Guilundo --- Eduardo Mondlane University, Mozambique Célia Martins --- Eduardo Mondlane University, Mozambique Orlando Quilambo --- Eduardo Mondlane University, MozambiquePterocarpus angolensis DC. is a premium timber from the Fabaceae family, found in the Miombo woodlands of sub-Saharan Africa. This study aimed at evaluating different scarification methods (chemical, mechanical and thermal) of seeds and the establishment of seedlings. To overcome...