اثر مصرف سایکوسل و محلولپاشی روی بر میزان پروتئین ذرت دانه ای و کارائی مصرف آب در شرایط کمبود آب
محورهای موضوعی : یافته های نوین کشاورزیاحسان عباسپور 1 , جعفرمسعود سینکی 2 , زرین تاج علیپور 3 , سکینه سعیدی سار 4
1 - دانشجوی کارشناسی ارشدزراعت- دانشگاه آزاداسلامی واحد دامغان، ایران
2 - گروه کشاورزی، دانشگاه آزاداسلامی واحددامغان ، ایران
3 - گروه کشاورزی، دانشگاه آزاداسلامی واحددامغان ، ایران
4 - گروه کشاورزی، دانشگاه آزاداسلامی واحددامغان ، ایران
کلید واژه: تنش آبی, سایکوسل, پروتئین دانه, کارائی مصرف آب, ذرت دانه ای, عناصر اصلی,
چکیده مقاله :
به منظور مطالعه اثرات وقوع تنش خشکی برذرت دانه ای این آزمایش به صورت کرت های دوبار خرد شده در قالب طرح پایه بلوک های کامل تصادفی در سه تکرار در سال 1389 در مزرعه تحقیقاتی جهاد کشاورزی شهرستان سمنان اجرا گردید. عامل اصلی شامل آبیاری در سه سطح، آبیاری کامل، قطع آب در مرحله ظهورگل نر و دانه بندی در کرت های اصلی و تیمار سایکوسل در سه سطح، بدون مصرف سایکوسل، مصرف سایکوسل با غلظت1500 و3000 قسمت در میلیون در کرت های فرعی و تیمار سولفات روی در سه سطح بدون محلولپاشی، محلولپاشی سولفات روی با غلظت 3 و5 در هزار به عنوان کرت های فرعی فرعی در نظر گرفته شد.نتایج نشان داد تاثیر قطع آبیاری بر مقدار پروتئین دانه و میزان فسفر، پتاس، روی، مس و آهن در برگ و کارایی مصرف آب دارای تاثیر معنی دار بود. به طوری که با افزایش تنش، میزان پروتئین دانه و کارایی مصرف آب افزایش و مقدار غلظت عناصر فسفر، پتاس، روی، آهن و مس کاهش یافت. همچنین مصرف سایکوسل در شرایط تنش به جز پتاس و فسفر سایر شاخص به ویژه پروتئین دانه و کارائی مصرف آب را افزایش داد. محلول پاشی سولفات روی مقدار آهن برگ را کاهش و پروتئین دانه وکارائی مصرف آب ومیزان غلظت عناصرفسفر، پتاس، روی و مس در برگ ذرت را در شرایط تنش افزایش داد.
To study the effect of water stress and the application of growth regulator (cycocel ) and Zinc spray on the protein rate, the major elements and some physical characteristics in corn (hybrid Ns540) .A split-split plot experimental with three replications in a randomized complete block design in Semnan Agricultural Research Station in 2010 in was run. The main factor included three levels of irrigation (irrigation complete, disconnect the water at 71 BBCH and 61 BBCH) in main plots and taking cycocel three levels (without taking cycocel consumption cycocel 1500, and 3000 parts per million) in the subplots and spraying zinc sulfate in three levels (no foliar applications, foliar applications of zinc sulfate at 3 and 5kg per thousands) as the subplots - are considered minor. Analysis of variance showed that the impact of cut irrigation on protein content, major elements such as phosphorus, potash, zinc, copper and iron, and water use efficiency is significantly. With the increased tension of the grain protein content and concentration of phosphorus, potash, zinc, iron and copper were reduced and increased water use efficiency. That results showed, taking cycocel, potash and phosphor decreased and other indicators increased. Zinc spraying the exception of the iron (Fe) increase in other indicators. the Correlation between Important elements and components of protein content and water use efficiency showed that Positive and significant correlation between water use efficiency and a high copper content of 0.474 percent is established And grain protein correlated with leaf phosphorus content of 0.522 percent. The findings can be to corn-growing of Semnan and similar region drought conditions that prohibit the use of certain materials and components that manufacturers offer to achieve good economic performance and quality.
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