Wilkes J E, Kirkpatrick T L
105 Collins St., 200 Biosystems Research Complex, Clemson University , Clemson, SC 29634.
University of Arkansas , Southwest Research and Extension Center, 362 Highway 174 North, Hope, AR 71801.
J Nematol. 2020;52:1-15. doi: 10.21307/jofnem-2020-012.
In 2012, the first domestic commercial edamame processing plant was established in Arkansas and edamame production was contracted out to local growers. Although the state is a major soybean producer, studies of nematode effects on edamame are limited. A survey of nematode genera and density in 64 contracted edamame production fields was conducted in 2013 and 2014. In both years, and were present in less than half of the surveyed fields while was the most prevalent in 2013 and in 2014. A microplot study was conducted in 2014 in two locations to evaluate the effects of root-knot nematode () and soybean cyst nematode (, HG type 2.5.7) on plant growth, yield and food quality components of edamame. Yield was the most consistent factor influenced by nematode pressure with increasing nematode population densities resulting in suppressed pod and seed weight. Additionally, seed protein content was reduced in the highest tested population density of . In greenhouse studies, 22 advanced edamame breeding lines from the University of Arkansas soybean breeding program were compared with two susceptible commercial cultivars for suitability as hosts for both and independently. Four lines showed consistent reductions in reproduction relative to the commercial cultivars and could represent sources of moderate resistance for development of future root-knot nematode resistant edamame cultivars. In 2012, the first domestic commercial edamame processing plant was established in Arkansas and edamame production was contracted out to local growers. Although the state is a major soybean producer, studies of nematode effects on edamame are limited. A survey of nematode genera and density in 64 contracted edamame production fields was conducted in 2013 and 2014. In both years, and were present in less than half of the surveyed fields while was the most prevalent in 2013 and in 2014. A microplot study was conducted in 2014 in two locations to evaluate the effects of root-knot nematode () and soybean cyst nematode (, HG type 2.5.7) on plant growth, yield and food quality components of edamame. Yield was the most consistent factor influenced by nematode pressure with increasing nematode population densities resulting in suppressed pod and seed weight. Additionally, seed protein content was reduced in the highest tested population density of . In greenhouse studies, 22 advanced edamame breeding lines from the University of Arkansas soybean breeding program were compared with two susceptible commercial cultivars for suitability as hosts for both and independently. Four lines showed consistent reductions in reproduction relative to the commercial cultivars and could represent sources of moderate resistance for development of future root-knot nematode resistant edamame cultivars.
2012年，美国阿肯色州建立了第一家国内毛豆加工厂，并将毛豆生产外包给当地种植户。尽管该州是大豆主产区，但关于线虫对毛豆影响的研究却很有限。2013年和2014年，对64个签约毛豆生产田中的线虫属和密度进行了调查。在这两年中，[未提及的两种线虫]在不到一半的被调查田中出现，而[文中未提及具体线虫名称的某种线虫]在2013年最为普遍，[另一种未提及具体线虫名称的线虫]在2014年最为普遍。2014年在两个地点进行了小区试验，以评估根结线虫（[未提及具体线虫名称的某种线虫]）和大豆孢囊线虫（[未提及具体线虫名称的某种线虫]，HG类型2.5.7）对毛豆植株生长、产量和食品质量成分的影响。产量是受线虫压力影响最一致的因素，随着线虫种群密度的增加，豆荚和种子重量受到抑制。此外，在最高测试种群密度下，种子蛋白质含量降低。在温室试验中，将阿肯色大学大豆育种项目的22个先进毛豆育种系与两个易感商业品种分别作为[未提及具体线虫名称的某种线虫]和[另一种未提及具体线虫名称的线虫]的寄主进行适宜性比较。相对于商业品种，有4个品系的[未提及具体线虫名称的某种线虫]繁殖量持续减少，可能是未来抗根结线虫毛豆品种培育的中度抗性来源。2012年，美国阿肯色州建立了第一家国内毛豆加工厂，并将毛豆生产外包给当地种植户。尽管该州是大豆主产区，但关于线虫对毛豆影响的研究却很有限。2013年和2014年，对64个签约毛豆生产田中的线虫属和密度进行了调查。在这两年中，[未提及的两种线虫]在不到一半的被调查田中出现，而[文中未提及具体线虫名称的某种线虫]在2013年最为普遍，[另一种未提及具体线虫名称的线虫]在2014年最为普遍。2014年在两个地点进行了小区试验，以评估根结线虫（[未提及具体线虫名称的某种线虫]）和大豆孢囊线虫（[未提及具体线虫名称的某种线虫]，HG类型2.5.7）对毛豆植株生长、产量和食品质量成分的影响。产量是受线虫压力影响最一致的因素，随着线虫种群密度的增加，豆荚和种子重量受到抑制。此外，在最高测试种群密度下,种子蛋白质含量降低。在温室试验中，将阿肯色大学大豆育种项目的22个先进毛豆育种系与两个易感商业品种分别作为[未提及具体线虫名称的某种线虫]和[另一种未提及具体线虫名称的线虫]的寄主进行适宜性比较。相对于商业品种，有4个品系的[未提及具体线虫名称的某种线虫]繁殖量持续减少，可能是未来抗根结线虫毛豆品种培育的中度抗性来源。
