Studies on the isolation of normal and abnormal seedlings of Chrysophyllum albidum: A step towards sustainable management of the taxon in the 21st century

Abstract

The authors’ field trip revealed that the local populace attempted to plantChrysophyllum albidum seeds but met with severe limitation. In the light of the above a study was designed to determine the optimum seed germination medium, normality and abnormality of seedlings. Of all the growth media used, 4 parts topsoil (4PTS) + 4 parts farm yard manure (4PFYM) had the best result. A mean seed germination value of 83% was obtained. Biomass accumulation was also highest in the medium of (4PTS + 4PFYM) from which mean fresh weight of 1.7 and 0.98 g dry weight were obtained respectively. Abnormality of seedlings was detected. It was such that the seed coat attached to the cotyledon and could not be removed without damage to the tender shoot. The study concluded that farmers generally sowed seeds directly, though the seeds may be viable and could germinate, most of the plantings failed due to seedling abnormality. Seedlings of C.albidum be raised in a tree nursery in a growth medium of 4PTS + 4PF YM, where the seedlings can easily be assessed. The abnormal seedlings should be identified, thinned our and well discarded. This will ensure successful forest plantation of C. albidum that can guarantee good returns on investment. Key words: Normal, abnormal, sustainable management, Chrysophyllum albidum.