Grape Root Phenology Relative to Control of Parasitic Nematodes
Grape Root Phenology Relative to Control of Parasitic Nematodes
复制标题
与寄生线虫控制相关的葡萄根物候学
DOI：
10.5344/ajev.1984.35.4.206
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发表时间：
1984
影响因子：
1.9
通讯作者：
M. Mckenry
中科院分区：
文献类型：
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作者：
M. Mckenry
在一年的时间内，我们定期挖掘 13 年树龄葡萄藤的部分根系，从土壤中筛选、测量尺寸、称重和计数。有两个明显的生根时期：第一次根部冲洗发生在开花之前，第二次发生在收获之后。根部冲洗持续时间短。春季冲洗为每公斤潮湿土壤提供了大约 2.7 个根首字母，即每株藤蔓产生 30 000 个新根。来自七个葡萄园的后续数据表明，春季冲刷的根部平均长度为 13 毫米，大多数在仲夏时变得干燥和坏死。结构根往往沿着阻力最小的区域延伸，包括旧根碎片或土壤断裂线。 Salt Creek (Ramsey) 砧木提供的根系比自根的 Thompson Seedless 具有更大的尺寸和直径。这些数据表明，有必要采取新的线虫控制剂的递送、放置和时机策略。
During a one-year period, portions of the root systems of 13 year-old grapevines were periodically excavated, screened from soil, sized, weighed and counted. Two periods of root initiation were evident; the first root flush occurred just prior to bloom, and the second just after harvest. Root flushes were of short duration. The spring flush provided approximately 2.7 root initials to each kg of moist soil, or 30 000 new roots per vine. Subsequent data from seven vineyards indicated that roots flushing in spring averaged 13 mm in length, and most became desiccated and necrosed by mid-summer. Structural roots tended to elongate along zones of least resistance, including old root debris or fracture lines of soil. Salt Creek (Ramsey) rootstock provided root systems of larger size and diameter than did own-rooted Thompson Seedless. These data suggest that new strategies for delivery, placement and timing of nematode control agents are warranted.