تأثیر شوری آب آبیاری بر عملکرد و اجزاء عملکرد دو گونه سالیکورنیا (S. bigelovii و Salicornia persica)

نوع مقاله : مقاله پژوهشی

نویسندگان

مرکز ملی تحقیقات شوری، سازمان تحقیقات، آموزش و ترویج کشاورزی، یزد، ایران

چکیده

     گیاه سالیکورنیا از این نظر حائز اهمیت است که به‌عنوان یک گیاه شورزیست، قابلیت کشت در نواحی شور و آبیاری با آب‌های نامتعارف و خیلی شور را دارا می­باشد. این پژوهش با هدف بررسی تأثیر سطوح مختلف شوری آب آبیاری بر عملکرد زراعی دو گونه سالیکورنیا (S. bigelovii و S. persica) در یک آزمایش لایسیمتری انجام شد. بدین منظور دو سطح مختلف شوری آب آبیاری (8 و 25 دسی زیمنس بر متر) در هر آزمایش اعمال گردید. آزمایش فاکتوریل با طرح پایه کاملاً تصادفی در این بررسی استفاده گردید. در طول آزمایش شوری خاک، شوری آب زهکشی، رطوبت خاک و حجم آب اعمال شده پایش و اندازه­گیری شد. در پایان فصل رشد پارامترهایی مانند وزن دانه، وزن کل اندام هوایی، ارتفاع بوته، تعداد شاخه­فرعی، تعداد سنبله در بوته، ارتفاع سنبله، قطر سنبله و وزن خشک سنبله اندازه­گیری و با یکدیگر مقایسه شدند. نتایج نشان داد که با افزایش شوری آب آبیاری از 8 به 25 دسی زیمنس بر متر اجزای عملکرد هر دو گونه سالیکورنیا (وزن دانه 62 و 5/11 درصد و وزن کل اندام هوایی 22 و 16 درصد به­ترتیب در گونه­های بیگلووی و پرسیکا) افزایش معنی­دار داشت. همچنین اثر شوری بر همه صفات مورفولوژیک به غیر از قطر سنبله در سطح احتمال 1 درصد معنی­دار بود.
 

کلیدواژه‌ها


عنوان مقاله [English]

Effect of Irrigation Water Salinity on the Yield of two Salicornia Species (Salicornia bigelovii and S. persica)

نویسندگان [English]

  • Hossein Beyrami
  • Mohammad Hasan Rahimian
  • Farhad Dehghani
  • Gholamhasan Ranjbar
  • yosef Hasheminejhad
چکیده [English]

Salicornia is an important halophyte that has the ability to cultivate in saline areas and irrigate with unconventional and hyper saline waters. This study aimed to investigate the effect of different irrigation water salinity levels on salicornia (Salicornia persica and S. bigelovii) yield under a weighting lysimetric experiment. For this purpose, two levels of irrigation water salinities (8 and 25 dS.m-1) were applied on each experiment. A factorial experiment with completely randomized design was subjected in this study. During the experiment, soil salinity, drainage water salinity, soil moisture and volume of applied water were measured and monitored. At the end of growing season, parameters like seed weight, total dry matter weight, plant height, and branch number, number of spikes per plant, spike height, spike diameter and spike dry weight were measured and compared together, as well. Results showed that as salinity level of irrigation water increased from 8 to 25 dS.m-1, yield components significantly increased (seed weight, 62 and 11.5 % and total dry matter weight, 22 and 16 % in S. bigelovii and S. persica, respectively). Also, the effect of salinity on all morphological traits was significant except for spike diameter at 1% confidence level.
 

کلیدواژه‌ها [English]

  • Lysimeter
  • Salicornia
  • Salinity
  • Yield
  • Yield Components
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