همکاری با انجمن علمی مدیریت و کنترل مناطق بیابانی ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار پژوهش، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان هرمزگان، سازمان تحقیقات، آموزش و ترویج کشاورزی، بندرعباس، ایران.

2 دانشیار پژوهش، مؤسسه تحقیقات جنگل‌ها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

چکیده

    به­منظور تعیین ارزش غذایی پنج گونه شورروی به نام‌های Aeluropuslagopoides، Atriplexleucoclada،Desmostachyabipinnata  ،Halopyrummucronatum و Halocnemumstrobilaceum، این بررسی در سال 1395 در استان هرمزگان انجام شد. نمونه‌های گیاهی در سه مرحله فنولوژیک شامل رشد رویشی، گلدهی و بذردهی از دو منطقه زمین‌سنگ و سیریک جمع‌آوری و هشت صفت کیفیت علوفه شامل درصد پروتئین خام (CP)، درصد ماده خشک قابل هضم (DMD)، درصد قندهای محلول در آب (WSC)، درصد دیواره سلولی منهای همی‌سلولز (ADF)، درصد فیبرخام (CF)، الیاف نامحلول در شوینده خنثی (NDF)، انرژی متابولیسمی (ME) و درصد خاکستر اندازه‌گیری شدند. تجزیه‌وتحلیل واریانس داده‌ها به‌صورت آزمایش فاکتوریل در قالب طرح کاملا تصادفی و مقایسه میانگین‌ها با آزمون چند دامنه‌ای دانکن در نرم‌افزار SPSS انجام شد. نتایج نشان داد که اثر گونه برای تمام صفات، اثر مراحل رشد فنولوژیکی برای چهار صفت درصد پروتئین خام (CP)، درصد ماده خشک قابل هضم (DMD)، درصد خاکستر و انرژی متابولیسمی (ME) و اثر متقابل گونه در مرحله رشد فنولوژیکی برای کلیه شاخص‌های کیفی بجز درصد قندهای محلول در آب (WSC) معنی‌دار بود. حداکثر کیفیت علوفه در مرحله رشد رویشی بدست آمد و گونه  Atriplex leucocladaنسبت به دیگر گونه‌های شورروی مورد بررسی از نظر ارزش غذایی برتری نشان داد. بنابراین در اصلاح مرتع مناطق با بارندگی مشابه استفاده از این گونه بومی بجای گونه‌های خارجی این جنس توصیه می‌شود.

کلیدواژه‌ها

عنوان مقاله [English]

Forage quality of five halophytes at different growth stages in Zaminsang and Sirik regions of Hormozgan province

نویسندگان [English]

  • Mohammadamin Soltanipour 1
  • Ehsan Zandi Esfahan 2

1 Assistant Professor, Hormozgan Agricultural and Natural Resources Research and Education Center, AREEO, Hormozgan, Iran

2 Assistant Professor, Rangeland Research Division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

چکیده [English]

    To determine the nutritional value of five halophytes, Aeluropus lagopoides, Atriplex leucoclada, Desmostachya bipinnata, Halopyrum mucronatum, and Halocnemum strobilaceum, this study was conducted in 2016 in Hormozgan province. Plant samples were collected in three phenological stages including vegetative growth, flowering and seeding, and eight forage quality traits (CP, DMD, WSC, ADF, CF, NDF, ME and ash percentage were measured. Data analysis of variance was performed as a factorial experiment in a completely randomized design and the means were compared with Duncan's multiple rsnge test in SPSS software. The results showed that the effect of species for all traits, the effect of phenological growth stages for four traits: (CP), (DMD), (ash), and (ME), and the interaction effect of species and phenological growth stage were significant for all quality indicators except (WSC). The highest forage quality was obtained at vegetative growth stage and Atriplex leucoclada was superior to other halophytes in terms of nutritional value. Therefore, the use of this native species instead of non-native ones of this genus is recommended in rangeland improvement of areas with similar rainfall.

کلیدواژه‌ها [English]

  • Nutritional value
  • halophytes
  • phenological stage
  • forage quality
  • Hormozgan province
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