Status of medicinal and aromatic plants in - Inia

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WORKING GROUP ON MEDICINAL AND AROMATIC PLANTS: FIRST MEETING
80
70
60
Yield (kg/ha)
50
40
30
20
10
0
20 30 40 50 60 70 80 90
Density (plants/m 2 )
Fig. 2. Effect of plant density on anise (Pimpinella anisum L.) yield.
In another study, weed species and the effect of some herbicides were identified in anise
fields in the Aegean region of Turkey. The most important species are as follows:
Chenopodium album, C. glaucum, Centaurea cyanus, Convolvulus arvensis, Chondrilla juncea,
Chonringia orientalis, Coronilla scorpioides, Cynodon dactylon, Euphorbia exigua, Gallium tricorne,
Geranium dissectum, Hypocum procumbens, Lathyrus aphaca, Lithospermum arvense, Polygonum
aviculare, Polygonum sp., Ranunculus arvensis, Sinapis arvensis, Tragopogon sp., Vicia sp. (Otan
et al. 1993). The effects of herbicides used in this study varied with years and locations;
however the highest yield was obtained with mechanical weed control methods.
Caper (Capparis spinosa L.)
Experiments were conducted on caper (Capparis spinosa L.) during 1991-1993. Several
experiments on germination and sowing methods were conducted to find out the best
method to grow caper. Direct seed sowing in the field was not suitable. Instead, sowing
non-stratified seeds in raised seed beds and transplanting seedlings were the best methods
(Otan and Sarı 1994).
In another study made between 1997 and 1999, yield and morphological characteristics of
a caper population were assessed. There were significant variations among caper plants for
yield (ranging 0-87 g), number of primary branches (2-12), primary branch length
(50-164 cm) and canopy width per plant (80-260 cm) (Table 1). In addition, there were
significant positive correlations between the following characters: yield and number of
primary branches, branch length and canopy width. The plants in the population had three
growth types (prostrate, semi-erect and erect) in the proportions 51%, 29% and 20%,
respectively (Sarı et al. 2002).