Effect of the seeding rate on yield components and regeneration of a local variety of Scorpiurus muricatus L. in the semi-arid conditions of Tunisia
2008
Zoghlami Khélil, A.; Ben Youssef, S.; Ben Salem, H.; Hassen, H., Institut National de la Recherche Agronomique de Tunisie, Ariana (Tunisia)
With the aim of promoting Scorpiurus muricatus L. cultivar 'Haffouz' recently released at INRAT, we studied three seeding rates (25, 50 and 100 kg pods/ha) in comparison with a conventional rate of 12.5 kg scarified seeds/ha. The trial was conducted during two consecutive years (2006 and 2007) in Tunis in randomized blocks with three replications. The following aspects were determined: number of regenerated plants, pod yield, thousand seed weight, seed number, crude protein content and other reproductive traits such as racemes, flowers, leaves, internodes and branching number, length of longest stem and leaf to stem ratio. A significant effect of the seeding rate was observed, only during the second year, on pod yield, seed weight, regenerated plants, racemes and leaves number per longest stem, leaf to stem ratio and length of longest stem. An important year effect was observed on pod yield, seed weight and regeneration. The trial will continue for a third year
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