Safflower productivity and oil yield affected by water limitation and nanofertilizers

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Research Paper 01/05/2018
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Safflower productivity and oil yield affected by water limitation and nanofertilizers

Kazem Ghassemi-Golezani, Nafiseh Afkhami
J. Bio. Env. Sci.12( 5), 424-430, May 2018.
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This research was arranged as split plot experiment based on randomized complete block design with three replications in 2017, to investigate the responses of safflower (Carthamus tinctorius L.) to the different levels of irrigation (I1, I2, I3, I4: Irrigation after 70, 100, 130 and 160mm evaporation, for normal irrigation and mild, moderate and severe water deficits, respectively) and foliar sprays of water (control) and nano-fertilizers (SiOand Mn2O3). Means of plant biomass, yield components, oil percentage and grain and oil yields were decreased under moderate and severe water limitations. However, foliar sprays of nano-SiO2 and nano-Mn2O3 increased grain and oil yields via enhancing plant biomass, grains per plant, 1000 grains weight and oil content under different irrigation intervals, especially under stressful conditions. Therefore, foliar application of nano-fertilizers can be used to improve safflower productivity and oil yield under normal and limited irrigation conditions.


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