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首页> 外文期刊>HortTechnology >Preliminary Findings on the Correlation between Water-soluble Carbohydrate Content in Stolons and First Year Green-up of Seeded Bermudagrass Cultivars
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Preliminary Findings on the Correlation between Water-soluble Carbohydrate Content in Stolons and First Year Green-up of Seeded Bermudagrass Cultivars

机译：St仁中水溶性碳水化合物含量与种子百慕大草品种第一年绿化的相关性初步发现

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摘要

Warm-season grasses are not widely accepted in Mediterranean countries because they lose color during the winter months. A study was conducted at the University of Padova (Padova, Italy) to determine whether fall and spring water-soluble carbohydrate (WSC) content in stolons of seeded bermudagrass cultivars (Cynodon dactylon) influenced spring green-up in the first year of establishment. Nine bermudagrass cultivars (La Paloma, Mohawk, Nunn; Sahara, Princess 77, Riviera, SR 9554, Barbados, Contessa, and Yukon) were seeded in July 2005, and dry weight and WSC content in stolons were measured in Fall 2005 and again in Spring 2006. The percentage of green cover and days needed to achieve 80% green cover (D80) were regressed against November and March values of stolon dry weight and WSC content to determine if they were good predictors of D80. 'Yukon' showed earliest spring green-up by end of April, and 'Princess 77' and 'Riviera' were slowest, needing 43 to 46 days more than 'Yukon' to reach D80. There was a significant inverse relationship between November (r(2) = 0.57) and March (r(2) = 0.77) WSC content in stolons and D80 for all nine bermudagrass cultivars. These results suggest that bermudagrass cultivars with high WSC in stolons recover more rapidly from dormancy during establishment than those with low WSC content.
机译：在地中海国家，暖季草未被广泛接受，因为它们在冬季会变色。帕多瓦大学（意大利帕多瓦）进行了一项研究，以确定播种的百慕大草（Cynodon dactylon）茎中的秋季和春季水溶性碳水化合物（WSC）含量是否影响了建树第一年的春季绿化。 2005年7月播种了9个百慕大牧草（拉帕洛玛，莫霍克，努恩;撒哈拉，公主77，里维埃拉，SR 9554，巴巴多斯，孔戴萨和育空），2005年秋季和2004年分别测定了茎的干重和WSC含量。 2006年春季。将绿色覆盖率和达到80％绿色覆盖率（D80）所需的天数与11月和3月的茎干重和WSC含量进行了回归，以确定它们是否是D80的良好预测指标。到4月底，“育空”显示出最早的春季花粉，而“公主77”和“里维埃拉”最慢，到达“ D80”所需的时间比“育空”多43至46天。对于所有9个百慕大草品种，November茎中的WSC含量和D80中的WSC含量在11月（r（2）= 0.57）和3月（r（2）= 0.77）之间存在显着的反比关系。这些结果表明，在W茎中具有高WSC的百慕大草品种比建立在WSC含量低的根中的休眠状态恢复更快。

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