TY - JOUR ID - 109390 TI - Impact of Ssuper Absorbent Polymer and Irrigation Management on Seed and Essential Oil Yields of Cumin JO - Journal of Medicinal plants and By-product JA - JMPB LA - en SN - 2322-1399 AU - Samadzadeh, Alireza AU - Fallahi, Hamid Reza AU - Zamani, Gholamreza AU - Nakhaie, Shahram AU - Aghhavani-Shajari, Mahsa AU - Amirizadeh, Amin AD - Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Birjand, Birjand, Iran AD - Seed Science and Technology Group, Department of Agronomy and Plant Breeding, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran AD - Department of Agronomy, Ferdowsi University of Mashhad, Mashhad, Iran Y1 - 2016 PY - 2016 VL - 5 IS - 2 SP - 145 EP - 152 KW - Deficit Irrigation KW - Leaf area duration KW - Medicinal plants KW - Secondary metabolites DO - 10.22092/jmpb.2016.109390 N2 - Two field and laboratory experiments were conducted to investigate the effects of superabsorbent polymer (SAP) and irrigation management on seed and essential oil yields of Cumin, as well as the impact of water quality on water holding capacity of SAP. Salinity had a negative effect on the amount of water absorbed by SAP (335 and 59 g H2O per g SAP, for distilled water and solution of 0.5% NaCl, respectively). SAP application (30 kg.ha-1) along with three times irrigation at sowing, flowering and seed filling stages increased the amounts of seed and essential oil yields by 2.79 and 3.05 times, compared to control. Positive effects of SAP were related to enhancement of soil water holding capacity (120 gr irrigation water per gr SAP), leaf area duration (one week) and subsequently grain filling period. UR - https://jmpb.areeo.ac.ir/article_109390.html L1 - https://jmpb.areeo.ac.ir/article_109390_c953b513135f26a010d88e786da316a7.pdf ER -