بررسی ارتباط فنولوژی با پتانسیل عملکرد و مقاومت به تنش خشکی در برخی از ارقام و ژنوتیپ‏های زراعی گندم در ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری اکولوژی گیاهان زراعی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

2 استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

3 استادیار، دانشکدة کشاورزی و منابع طبیعی مغان، دانشگاه محقق اردبیلی

چکیده

تناسب الگوهای رشدی ارقام گندم مورد کشت در یک منطقه با شرایط آب‌و‌هوایی منطقه، می‏تواند سبب ارتقای توان تولید عملکرد گیاهان شود. هدف پژوهش حاضر نیز شناخت فنولوژی دامنة گسترده‏ای از ارقام و ژنوتیپ‏های گندم زراعی در ایران و بررسی ارتباط فنولوژی با حفظ پتانسیل عملکرد در شرایط تنش خشکی آخر فصل بود. در همین راستا 36 ژنوتیپ گندم در دو شرایط فاریاب و تنش خشکی در قالب طرح لاتیس ساده با سه تکرار در مزرعة دانشکدة کشاورزی دانشگاه تهران در سال زراعی 1389-1390 بررسی شدند. فنولوژی و صفات عملکرد دانه، تعداد دانه در سنبله و وزن هزاردانه برای همة ارقام ثبت شد. نتایج آزمایش نشان داد اغلب ارقامی که رشد رویشی خود را به‌سرعت سپری می‌کنند و وارد دورة زایشی می‏شوند، توان بیشتری برای تحمل تنش خشکی آخر فصل دارند. همچنین در شرایط تنش خشکی مشاهده شد که اغلب ارقام گندم با دورة کوتاه پر شدن دانه مانند سیمینه، چناب، استورک، مغان 3، کراس فلات هامون و دی ان-11، صاحب برترین رتبه‏های تولید وزن هزاردانه بودند.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of phenology relationship with yield potential and drought stress tolerance in some of wheat (Triticum aestivum L.) genotypes and varieties in Iran

نویسندگان [English]

  • Nasrin Ziloee 1
  • Ali Ahmadi 2
  • Mehdi Joudi 3
1 Ph.D, Student, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
2 Professor, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
3 Assistant Professor, Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Parsabad, Iran
چکیده [English]

Proportionality of wheat cultivars growth patterns to the area’s agro climatic condition will improve crop production. The objective of this study was identifying the phenology of a wide range of wheat varieties in Iran, as well as evaluating the relationship between phenology and drought stress tolerance under late season drought stress. In this experiment, 36 wheat genotypes were studied under irrigated and drought stress conditions, at farm of the Agricultural College of Tehran University during 2010-11cropping season. Experimental design was simple lattice with three replications. Phenology, grain yield, grain number per spike and 1000 kernel weight were recorded for all cultivars. The results showed that most of the varieties which had short vegetative duration, subsequently had greater ability to tolerate late season drought stress. Also, under drought stress condition, wheat varieties with short grain filling period had the highest 1000 kernel weight, such as Simineh, Chenab, Stork, Moghan 3, Cross falat hamoon and DN-11

کلیدواژه‌ها [English]

  • Drought stress
  • Grain filling duration
  • Phenology
  • Flowering
  • Wheat

مراجع

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سابقه مقاله

  • تاریخ دریافت: 16 بهمن 1392
  • تاریخ بازنگری: 28 مرداد 1393
  • تاریخ پذیرش: 01 شهریور 1393
  • تاریخ انتشار: 01 دی 1393

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