TY - JOUR ID - TI - Effect of seed size,number of irrigation peroids and nitrogen fertilization levels on grain yield of Fenugreek ( Trigonella foenum-graecum L .) and active subastance production. AU - Mohammed Swadi Zgher PY - 2015 VL - 2 IS - 20 SP - 94 EP - 112 JO - Al-Qadisiyah Journal of Pure Science مجلة القادسية للعلوم الصرفة SN - 19972490 24113514 AB - Field experment was carried out to study the effect of seed size(: small 100seeds 7.56mm3 and large 100seeds 20mm3),irrigation(forth levels : 3 , 6 , 9 , 12 days period) andnitrogen fertilization ( 0 , 5 , 10 , 15 kgN/d). Experment set up in Black plastic Plots(9kgscapacities). The design of the experment was RCBD in split-split sub plot arragment in threereplications ,seeds were sown at stayer pore in 20 gm peatmoss at 1/9/2013, and seedingtrnsfer in to plots at 1/10 , sample of soil was took befor planting for analyzed to determinephysical & chemical properties ,dry seeds were taken 4 month after planting for analyzed toshowed grain yield, percentage of nitrogen , carbohydrate, protien, oil, proline and trigolinealkloide. Results indicated all facters and interactions were signifcant effects and incresedgrain yield, percentages of carbohydrate, and oil at interaction of large seeds size and every 3days irrigation and 5kgN/d , while max percentages of nitrogen , protein , proline andtrigoline at interaction of small seeds size and 12 days irrigation and 5kgN/d.

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