بررﺳﻲ ﭘﺎراﻣﺘﺮﻫﺎی ﻓﻴﺰﻳﻮﻟﻮژﻳﻜﻲ ذرت ﺷﻴﺮﻳﻦ ﺷﺎﻣﻞ ﻣﻴﺰان ﻧﺴﺒﻲ آب ﺑﺮگ، ﭘﺮوﻟﻴﻦ اﺳﻴﺪ و ﻣﺤﺘﻮای ﻛﻠﺮوﻓﻴﻞ ﺑﺮگ در ﻣﺮاﺣﻞ ﻣﺨﺘﻠﻒ رﺷﺪ ﻧﺴﺒﺖ ﺑﻪ ﺗﻨﺶ آﺑﻴﺎری و ﻣﻴﺰان ازت ﻣﺼﺮﻓﻲ

Water deficit is one of the main factors limiting production in arid and semiarid regions. This study investigated were carried out in the interaction of water deficit and N fertilizer rate on pollen number and pollen viability, photosynthesis rate and stomata conductance parameters in greenhouse condition. The experimental layout was split plot factorial design arranged in a randomized complete block design with three replications in 2010 in the Agriculture crop science, Putra University Malaysia (UPM).Treatments consisted of four levels of irrigation (including irrigation all of the growing season (control), vegetative drought, reproductive drought and vegetative and reproductive drought), three levels of nitrogen as urea (40, 120 and 200 kg ha-1) and two varieties of sweet corn varieties (including hybrids 968 and 926), respectively. Results showed that the interaction effects of water deficit and nitrogen fertilizer were significant and reduced relative water content and chlorophyll content under water and Nitrogen rates deficit. Whereas. Proline content increased under water deficit.