不同生态类型春小麦根系动态变化特点的研究

• 作 者: 车京玉 邵立刚 王岩 李长辉 马勇 高凤梅 张起昌 刘歧 宋淑波
• 机 构: 黑龙江省农科院克山农科所,黑龙江省农科院克山农科所,黑龙江省农科院克山农科所,黑龙江省农科院克山农科所,黑龙江省农科院克山农科所,黑龙江省农科院克山农科所,黑龙江省农科院克山农科所,黑龙江省克山农场,
• 出 处: 河南科技学院学报(自然科学版)
• 发表日期: 2006年04期
• 关键词: 小麦根系 根鲜重 生态类型 生物产量 春小麦 抽穗期 小麦根 干重 生育时期 根系

本试验为了研究不同生态类型春小麦根系生长特点,选用3个不同类型春小麦品种,对不同生育时期的根鲜重、根干重、根体积的变化以及地上部生物产量、株高、产量进行分析。试验结果表明:不同生态类型小麦品种的根系生长动态变化差异较大。抗旱类型小麦与喜肥类型和耐湿类型相比,抽穗期的根鲜重和根干重达到极显著水平,根体积达到显著水平。小麦根体积、根干重等的变化呈单峰曲线,根干重的最大增长速率克旱18号明显大于克丰3号和克涝4号,分别为0.0154mg/d,0.0067mg/d,0.0058mg/d,最大值出现的时间略有不同。不同品种地上部分与根系变化呈正相关关系,即克旱18号的生物产量、株高、亩产明显高于克丰3号和克涝4号。

In order to study the characteristics of root growth of different types of spring wheat, three different types of spring wheat were used to analyze the changes of root fresh weight, root dry weight and root volume at different growth stages, as well as the shoot biomass, plant height and yield. The results showed that the dynamic changes of root growth of wheat varieties with different ecological types differed greatly. Drought-resistant wheat had a significant level of root fresh weight and root dry weight at heading stage compared with those of hi-fat type and moisture-tolerant type, and the root volume reached a significant level. The root volume and root dry weight of wheat showed a single peak curve. The maximum growth rate of root dry weight was significantly higher than that of Kefeng No.3 and Keluo No.4 (0.0154mg / d and 0.0067mg / d, respectively) 0.0058mg / d, the maximum appears slightly different time. The above-ground parts of different cultivars had a positive correlation with root changes, that is, the biomass, plant height and mu yield of Khan 18 were significantly higher than those of Kefeng 3 and Keluo 4.