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The field experiment was carried out at the Qarha Research Station/General Authority for Agricultural Scientific Research/Syria during the agricultural season 2021-2022 with the aim of assessing the performance of some environmental models of latency spread in Syria, Under supplementary irrigation conditions, based on some evolutionary, formal, quantitative and qualitative characteristics and identifying the most adaptive and productive model, where 8 environmental models were cultivated (V1 Aleppo Sfera- V2 Aleppo Sekaan- V3 Alepoo Shlash- V4 Hama Tal Kartal- V5 Hama Rabeaa- V6 Ref Damascus Kanaker- V7 Ref Damascus Byat Saber- V8 Homs Tal Besaa) of cumin from 4 different environmental zones in Syria (Damascus countryside, Homs, Hama, Aleppo) within 4 irrigation transactions (T3-T2-T1-T0) where T0: irrigation treatment is dependent on rainwater only T1: Provide two supplements in the vegetable growth phase, T2: provide 3 supplementary ritin in the vegetable growth phase and irrigation in the flowering phase T3: 4 supplements in the phase of vegetable growth and irrigation at the beginning of the stage of flowering and irrigation at the beginning of the stage of the fruit contract, the research is developed according to the design of the full random sectors (RCBD) in order of splinter pieces, where irrigation transactions were the main pieces, While the models were secondary pieces in three repeats for each of the transactions studied, the results showed a discrepancy between the models studied under the conditions of the studied transactions, For irrigation transactions, the T3 irrigation transaction was morally superior to the rest of the transactions in most of the examined qualities, and for the models the V8 Homus Tal besaa was more Mature faster in the number of days required for plant (29.7 days), V8 Homs Tal bessa - V7 Rif Damascus Byat Saber - V2 Aleppo Sekaan on the number of days needed for flowering (128.7 days), the V7 Rif Damascus Byat Saber in Mature faster surpassed maturity (158.2 days), and the plant's height (23.14 cm), Number of branches/ Plant (4.16), the weight of a thousand fruits (10.80 g), the weight of fruits in the plant (5.61g), and the fruit yield (1122.8 kg/ hectare), biomass (1968 kg/ hectare), in the harvest manual (56.91%), the V4 model exceeded the protectors by the number of floral fluorescence for the plant (41.82 nauras/ Plant), the number of fruits in the plant (580 fruits/ plant), the model V2 Aleppo Sekaan exceeds the percentage of pilot oil (4.48%), the model V8 Homs Tal Besaa exceeds the percentage of field plant (94.11%), and the oil crop (0.215 ml/ plant), as the V1 Aleppo Sfera recorded the lowest values in most studied qualities, It was also shown that there are 9 compounds in the essential oil, and the two compounds Cumin aldehyde and 3-Caren-10-al had the largest percentage of these compounds. for an interaction between irrigation transactions and thoughtful models, the highest values were recorded by the V7 Rif Damascus Byat Saber and V8 Homs Tal besaa interaction with four supplementary T3 irrigation transactions, and the correlation results showed a positive and moral correlation between the number of days needed for flowering and the number of days required for maturity (r = * 0.937 and a positive and moral correlation between the quality of the plant's rise and biomass (r = 0.509 * *), and a positive and moral correlation between the recipe of fruity yield and the recipe of the weight of 1,000 fruit (r = 0.891 * *), fruit weight recipe (r = 1.000 * *), harvest guide recipe (r = 0.929 * *), bio yield recipe (r = 0.921 * *), depending on these results it is recommended to grow the V7 Rif Damascus Byat Saber and V8 Homs Tal BesaaⅠ under the conditions of the study area (Rif Damascus).
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