| 小黑麦在高寒地区的适应性 |
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| 引用本文： | 汪玺,严学兵,席亚莉. 小黑麦在高寒地区的适应性[J]. 甘肃农业大学学报, 2002, 37(4): 428-432 |
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| 作者姓名： | 汪玺 严学兵 席亚莉 |
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| 作者单位： | 甘肃农业大学草业学院,兰州,730070 |
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| 摘 要： | 对3个小黑麦品种在高寒牧区不同生育时期生理指标和生物量进行了测定,结果表明:品种83P–91的综合性状最优,具有丰产栽培推广价值。其最大生长速率为2.34 cm/d,茎叶比为1.2~8,分蘖数为3.3,单穗重量1.48 g,鲜草产量4 642 g/m2,抽穗期上、中下部叶片平均光合速率(Pn)为9.4CO2 mg/(dm2·h),蒸腾速率(Tr)158 H2O mg/(dm2·h),水分利用率67.3 mg/g,气孔阻抗(SR)为2.0 cm/s。
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| 关 键 词： | 小黑麦 高寒地区 适应性 |
| 文章编号： | 1003-4315(2002)04-0428-05 |
Adaptability of triticale in high-cold pastoral area |
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| WANG Xi,YANXuebing,XI Ya-li. Adaptability of triticale in high-cold pastoral area[J]. Journal of Gansu Agricultural University, 2002, 37(4): 428-432 |
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| Authors: | WANG Xi YANXuebing XI Ya-li |
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| Abstract: | The physiological indices and biomass of three triticale cultivars were conducted at different stages in high-cold pastoral area. Results show that cultivar 83P-91 is superior in general and has cultivation value for high yield. Cultivar 83P-91 has the most rapid growth rate of 2.34 cm/d, steam/leaf ratio of 1.2 to 1.8, tillers of 3.3, ear weight of 1.48g, fresh yield of 4 642 g/m. The average photosynthesis rate, transpiration rate, water utilization efficient and stomatic resistance of high, middle and low part of leaves are 9.4 CO2 mg/(dm2·h),158H2O mg/(dm2·h),67.3 mg/g and 2.0 cm/s, respectively. |
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| Keywords: | triticale high-cold pastoral area adaptability |
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