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mancozeb+metalaxyl > chlorpyrifos-methyl > chlorpyrifos > imidaclopride > profenofos > fenamifos > malathion > dimethoate > methomyl > thiallophanate-methyl > carbosulfan > mineral oil > carbendazim. In conclusion, the results of this study clearly emphasize the importance of estimating risk phrases when assessing the pesticide stress on aquatic ecosystems and indicated that the tested pollutants may imbalance the aquatic ecosystem and cause a shift of algal species dominance. Such speculations need further more studies to fully understand the processes involved in pesticide toxicity. ]]>
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Force, hardness and penetration coefficient varied from 0.266 to 0.653N , 0.775 to 2.884 N/mm, and 0.136 to 0.517 N/mm respectively during storage fruits at -20C°. The highest and lowest values of hardness, cohesiveness, adhesion, chewiness, elasticity and resilience were 2.119N. in fresh fruits and 1.639 N
after 5 months of storage, 0.728 after 8 months and 0.592 after 2 months of storage, 0.658 after 5 months and 0.509 after 11 months of storage, 0.942 after 8 months and 0.571 after 5 months of storage, 0.738 after 8 months and 0.607 after 5 months of storage, 0.227 in fresh fruit and 0.11after 8 months storage at -20C° respectively. Total and reducing sugars especially glucose and fructose contents were gradually increased with extending storage period at -20C° for 11 months. The obtained resulted indicated the suitable storage period of this species of date at rutab stage is 2 months at -20C°.
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