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Tekan S. Rana和Sanjun Gu

北卡罗来纳州的新鲜草莓有2140万美元的经济价值,主要来自年度血液栽培系统的短日粮。有机和淡季日中性草莓的价格比传统的野外的草莓更高。在北卡罗来纳州的高隧道中,没有出现有关188金宝慱88金宝搏安卓合适的品种,移植日期,移植日期和额外的冬季保护方法的研究。本研究的目的是检查低隧道,种植日期和品种对高隧道中日中性草莓的生长,产量和季节延伸潜力的影响。Plugs of day-neutral cultivars Albion and San Andreas were either transplanted in raised beds covered with low tunnels (LT) or without low tunnels (control, NLT), inside high tunnels on the N.C. A&T State University Farm (Greensboro, NC) on two different planting dates, which were 1 Sept. (D1) and 29 Sept. (D2) of 2016, or 9 Sept. (D1) and 10 Oct. (D2) of 2017, respectively. A completely randomized design with split-split plots was used. LT did not significantly affect the total yield and plant phenology, but they promoted the first harvest by a week compared with NLT, which resulted in higher yield during the winter of both years. D1 promoted about 24 days of earlier harvest than D2. ‘Albion’ had an earlier bloom and harvest date (by 1 to 3 weeks and 2 to 3 weeks, respectively) than ‘San Andreas’. Strawberry yield was low in the fall season, but it started to increase from January, peaked in April, and decreased again in May. D1 increased the whole season’s marketable yield of ‘Albion’ (430.3 g/plant), compared with that of ‘San Andreas’ (330.9 g/plant). During the winter, ‘Albion’ had a higher yield than ‘San Andreas’. Our study indicates that LT inside HT might not significantly improve the plant growth, early harvest, or total yield. Planting dates had no consistent effect on yield. It was suggested that ‘Albion’ should be considered for high winter yields, and ‘San Andreas’ be a cultivar with high yields of the entire season in high tunnels.

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Tekan S. Rana,Erick D. Smith,Cain Hickey和Mark Hoffmann

超过3000英亩的商业肌肉(血管圈)在美国东南部存在葡萄园。葡萄酒产业仅在北卡罗来纳州产生10亿美元的经济影响。自19世纪以来培养了葡萄干,但葡萄园葡萄园肥料方案,组织采样和营养丰富的范围继续基于轶事知识。虽然组织营养浓度的季节性变化充分记录在葡萄中(vitis Vinifera),仍然存在关于季节性和品种依赖性的肌肉叶组织营养浓度的动态问题。本研究的目的是评估成熟商业种植的肌肉组织营养浓度的时间和品种相关差异。在2018年和2019年的三个葡萄园(Piedmont北卡罗来纳州,北格鲁吉亚和南乔治亚)评估葡萄园品种Carlos和Noble的叶组织营养浓度在2018年和2019年。我们的结果表明氮气(N),磷(P)和锰(Mn)通常高于推荐的充足范围,钙在季节 - 和N,P和钾钾上涨。与“高贵”相比,“卡洛斯”水平明显较高,而“贵族”相比,“崇高”浓度比“卡洛斯”显示出更高的Mn浓度。通过这种评价,我们证明了基于品种和葡萄生长阶段的肌肉组织营养范围的修饰需要。