Abstract
In order to definite growth stages of Matricaria chamomilla L., 40 plants were planted with 200 × 200 cm distance from each other. To determine the phenology under different water stress condition and plant densities, an experiment was conducted in factorial based on randomized complete block design with two factors including irrigation at 4 levels (25, 50, 75, and 100 mm evaporation from pan class A), and plant density at 5 levels (cultivation in 30 cm rows with 5, 10, 15, 20 and 25 cm intra-row spaces) with three replications. Definition of growth stages including the maximum number of nodes, sub stems and tillers were 21, 20 and 14 that were occurred at 970, 1088 and 1088 o C growth degree-days, respectively. The numbers of nodes were 28.6, 30.0, 30.2 and 27.8, of sub stem were 19.2,
Highlights
Prior to any serious consideration of the chemical composition of chamomile, the botanical and taxonomical identity needs to be understand (Mann and Staba, 1992)
Vegetative stages: Ve, Vc, V1, V2 and V3 were same in all treatments, after that and carrying out of irrigation and plant density treatments differences were showed
Results of ANOVA showed that Growth Degree Days (GDDs) for first harvests of flower and seed were not affected by irrigation regimes, but plant density had significant effect on them (P
Summary
Prior to any serious consideration of the chemical composition of chamomile, the botanical and taxonomical identity needs to be understand (Mann and Staba, 1992). The effects of Irrigation regimes (I) and Plant density (D) as well as the interactions of these two factors were analyzed with the analysis of variance. Definition of growth stages of Matricaria chamomilla L. at the experiment site in 2003 and 2004, showed in Tab. 2. The maximum number of nodes (Vn), sub stems (Sn) and tillers (Tn) were 21, 20 and 14 at the GDDs of 970, 1088 and 1088oC, respectively (Tab. 1).
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