کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5762146 1624808 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Geographic variations in seed germination of Dalbergia odorifera T. Chen in response to temperature
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Geographic variations in seed germination of Dalbergia odorifera T. Chen in response to temperature
چکیده انگلیسی
Temperature plays an essential role in regulating seed germination and seedling production. As adaptation of germination requirements can occur in response to slight differences of the local climate, studying the intra-species variations of seed germination is of great importance for its large-scale conservation, introduction and seedling production. In the present study, germination of Dalbergia odorifera from four geographic sites (namely Ledong in Hainan province, Pingxiang in Guangxi Zhuang Autonomous region, Zhaoqing in Guangdong province and Longhai in Fujian province) were investigated under five constant temperatures (15 °C, 20 °C, 25 °C, 30 °C and 35 °C). The results showed that there existed statistically significant differences (P < 0.001) among these localities, temperatures and their interactions in terms of final germination percentage (FGP) and mean time to germination (MTG). Seeds from all these localities demonstrated the lowest FGP value (27.3%, 0.0%, 8.0% and 10.0% in average) under the temperature of 15 °C, while 25 °C was the optimal germination temperature for seeds collected from Ledong and Pingxiang, and 30 °C for seeds collected from Zhaoqing and Longhai. It could be deduced that intra-specific variations in the optimal germination temperature might occur over a small scale in southern China.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 102, August 2017, Pages 45-50
نویسندگان
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