摘要
比较了在果岭区匍匐剪股颖的 6个多枝条密度品种和 8个标准品种在不同时期 ,分蘖数、根干重、非结构性糖含量的变化规律。得出了以下结论 :1)品种之间的分蘖数在 7月差异显著 (P≤ 0 .0 5 ) ,但 4月、10月不显著 ,2 )品种之间根重无区 ,但春季 6个高枝条密度品种的根重比 8个标准品种的要重 ;随修剪高度降低 ,根重减少。 3)在 18个采样日期中只有两个时期的非结结构性糖的含量显著不同 ,即在相对高温期间高枝条密度品种较标准品种非结区性糖的积累量要少。
The objective of the research is to determine if there were seasonal changes in rooting patterns, and total nonstructural carbohydrate (TNC) concentration between six high shoot density and eight standard creeping bentgrass cultivars on putting greens. The results as follows: 1) The number of tillers deffered significantly (P≤0.05) among the cultivars in July but not in April or October. 2) No differences in root dry weight were observed among cultivars for root samples collected from June 1997 through Nov. 1998. Root weight did decrease for all cultivars because the graducal drop of mowing height from 11 mm to 3.1 mm during the period June 1997 to July 1997. 3)Percentage TNC was not significantly different (P<0.05) among the entries for two of 18 samling dates.
出处
《草原与草坪》
CAS
2001年第4期27-29,共3页
Grassland and Turf
关键词
果岭
匍匐剪股颖
品种
非结构性糖
根干重
putting green
creeping bentgrass
cultivar
TNC
root dry weight