Genotype-environment interaction and phenotypic stability of eight selected kacip fatimah clones grown at different locations / Norhayati Saffie

Raw materials for local uses and herbal products are insufficient as the demand is keep increasing by year. Most of the raw materials used are imported and very few from wild. This situation will lead to adulteration with low quality planting materials. Mass production of Labisia pumila clones is one alternative to overcome this shortage. Since these clones are not yet produced locally, it is important for this species to undergo propagation and testing at different environment in different locations. It is for choose only stable clones that have good mean performance over a wide range of environments. The objectives of this study are: i) to investigate the effects of rooting ability in leaf cuttings of eight clones of L. pumila by using different leaf parts, ii) to evaluate genotype and environment interaction (GxE) and its phenotypic stability of eight clones of L. pumila planted at four different locations and iii) to determine the amounts of total phenolic content (TPC) from L. pumila leaves extracts planted at four different locations. At early stage of study, eight selected clones of L. pumila (KF01, KF02, KF03, KF04, KF05, KF06, KF07 and KF08) were propagated using leaf cuttings to produce many uniform ramets. Three different leaf parts (top, middle, and bottom) were used. All the clones have high ability for rooting. The percentage of rooting is more than 80% and mean of root lengths for all the clones are more than 3.0 cm. For the root length versus leaf parts, results have showed bottom leaf part has high ability compared to middle and top part. However, clone KF01 have showed the high mean of root length. Results for root length in ascending order are middle leaf part (8.41 cm ± 0.83) > bottom leaf part (7.62 cm ± 0.75) > and top leaf part (6.45 cm ± 0.65). After have been raised nine months at Nursery, the eight clones selected are tested at four different FRIM Research Sub-Stations; SPF Mata Ayer, Perlis; SPF Maran, Pahang; SPF Setiu, Terengganu; and FRIM Kepong, Selangor.