Effect of water regime on the growth, flower yield, essential oil and proline contents of Calendula officinalis

SAMI ALI METWALLY (Department of Ornamental Plants and Woody Trees, National Research Centre, El Buhouth St., Dokki 12311, Giza, Cairo, Egypt)
KHALID ALI KHALID (Department of Medicinal and Aromatic Plants, National Research Centre, El Buhouth St., Dokki 12311, Giza, Cairo, Egypt)
BEDOUR H. ABOU-LEILA (Department of Water Relation and Field Irrigation, National Research Centre, El Buhouth St., Dokki 12311, Giza, Cairo, Egypt)

Nusantara Bioscience
Vol. 5 No. 2 (2013)

Abstract. Metwally SA, Khalid KA, Abou-Leila BH. 2013. Effect of water regime on the growth, flower yield, essential oil and proline contents of Calendula officinalis. Nusantara Bioscience 5: 65-69. The effects of water regime on the growth, content of essential oil and proline of Calendula officinalis L. plants were investigated. Water regimes of 75% of field water capacity increased certain growth characters [i.e. plant height (cm), leaf area (cm2), flower diameter (cm) and spike stem diameter] and vase life (day). Water regime promoted the accumulation of essential oil content and its main components as well as proline contents.