Strausbaugh Carl A, Rearick Eugene, Camp Stacey, Gallian John J, Dyer Alan T
United States Department of Agriculture-Agricultural Research Service NWISRL, Kimberly, ID 83341.
Amalgamated Research, Inc., Twin Falls, ID 83301.
Plant Dis. 2008 Apr;92(4):581-587. doi: 10.1094/PDIS-92-4-0581.
Rhizomania caused by Beet necrotic yellow vein virus (BNYVV) and storage losses are serious sugar beet production problems. To investigate the influence of BNYVV on storability, six sugar beet cultivars varying for resistance to BNYVV were grown in 2005 and 2006 in southern Idaho fields with and without BNYVV-infested soil. At harvest, samples from each cultivar were placed in an outdoor ventilated pile in Twin Falls, ID and were removed at 40-day intervals starting at the end of October. After 144 and 142 days in storage, sugar reduction across cultivars averaged 20 and 13% without and 68 and 21% with BNYVV for the 2005 and 2006 roots, respectively. In the December samplings, frozen root area was 1 and 2% without and 25 and 41% with BNYVV for the 2005 and 2006 roots, respectively. Root rot was always worse with stored roots from BYNVV-infested soil in December, January, and February samplings. Root weight loss was variable in 2005; however, in 2006, an increase in weight reduction always was associated with BNYVV-infested roots. In order to prevent losses in rhizomania-infested areas, cultivars should be selected for storability as well as rhizomania resistance.
由甜菜坏死黄脉病毒（BNYVV）引起的根腐病和储存损失是甜菜生产中的严重问题。为了研究BNYVV对耐储存性的影响，2005年和2006年在爱达荷州南部有和没有BNYVV侵染土壤的田地里种植了六个对BNYVV抗性不同的甜菜品种。收获时，将每个品种的样本放置在爱达荷州双子瀑布市的室外通风堆中，并从10月底开始每隔40天取样一次。储存144天和142天后，2005年和2006年的根在无BNYVV情况下各品种的糖分减少平均分别为20%和13%，有BNYVV情况下分别为68%和21%。在12月的取样中，2005年和2006年的根在无BNYVV情况下冻害根面积分别为1%和2%，有BNYVV情况下分别为25%和41%。在12月、1月和2月的取样中，来自受BYNVV侵染土壤的储存根的根腐病总是更严重。2005年根重损失情况不一；然而，在2006年，重量减少的增加总是与受BNYVV侵染的根有关。为了防止根腐病侵染地区的损失，应选择耐储存性以及抗根腐病的品种。
