Evaluation drought stress indices and yield stability in some chamomile ecotypes
Publish place: Ethno-Pharmaceutical Products، Vol: 2، Issue: 2
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
View: 226
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_ETPHPR-2-2_007
تاریخ نمایه سازی: 24 اردیبهشت 1401
Abstract:
Breeding for drought tolerance is an important objective of crop breeding programs in arid and semi-arid regions. A factorial experiment based on a randomized complete blocks design with three replicates was carried out to determine suitable drought tolerance indices in chamomile ecotypes under stress and non-stress conditions in ۲۰۱۸. According to the results of the analysis of variance, there was a significant difference among the ecotypes regarding plant yield under both environmental conditions (stress and non-stress). The highest average yield (۰.۵۶۸ and ۰.۶۶۵ g plant-۱) under stress and non-stress conditions were associated with Arak and Kerman ecotypes, respectively. Based on the plant yield of ecotypes under non-stress environments (Yp) and moisture stress (Ys), ecotypes were evaluated in terms of drought tolerance by six different indices of geometric mean productivity (GMP), stress tolerance index (STI), stress sensitivity index (SSI), tolerance index (TOL), mean productively (MP), and harmonic mean (HM). According to the results obtained under both stress and non-stress conditions, SSI and STI were selected as the best indices for isolation of tolerant ecotypes. Based on these indices, biplot diagram, and mean comparison table, ecotypes of Mashhad, Khuzestan, and Kerman were identified as tolerant. Isfahan, Arak and Shiraz ecotypes were the most sensitive ecotypes to drought stress. Also, cluster analysis by Ward̕ s method was used to group ecotypes based on plant yield; based on which the ecotypes were divided into ۳ separate groups in both environments. Considering the results of this study, it is recommended to exploit the drought stress tolerance of indigenous chamomile populations of the country and conserve this valuable plant as valuable genetic resources.
Keywords:
Authors
Ali Salehi Sardoei
Horticulture Sciences Biotechnology, Faculty of Plant Production, Gorgan University of Agriculture and Natural Resources
Azadeh Alizadeh
Horticulture Department, Faculty of Plant Production, University of Agriculture and Natural Resources, Gorgan, Iran
Hamideh Azad Ghouge Bigloo
Faculty of Agriculture, University of Zabol, Iran
Hadi Ghasemi
University of Florida, Environmental Horticulture, USA
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :