摘要
The impacts of pH on roots growth of sugarcane seedlings were explored by a pot test. The nutrient solution with three pH levels, Le., 5.0, 7.0 and 8.5 were applied to culture five combination seedlings, including A （RB85-5156 × YR05-407）, B （YR06-3501 ×Tolodo）, C （YT94-128 × GZ75-65）, D （ROC6 × YR05-733） and E （VMC87-95 ×YR05-171）. The result indicated that root length, root surface, root volume and root diameter were all in the largest in B combination with solution pH= 7.0, and the root length, root surface, root volume were in the largest in combination A, C, D and E with solution pH=8.5. Root activity in combination C, D and E were in the highest with solution pH=5.0, while it was in the highest for combination B when pH=7.0. In general, the root growth and morphology in all five combinations were better in the solutions with pH of 7.0 and 8.5.
采用桶栽方式,研究不同pH(5.0、7.0、8.5)营养液对甘蔗组合RB85-5156×云瑞05-407、云瑞06-3501×Tolodo、粤糖94-128×赣蔗75-65、ROC6×云瑞05-733、VMC87-95×云瑞05-171(分别记为A、B、C、D、E)实生苗生长的影响。结果表明:1在pH7.0处理下,B组合实生苗的根长、根表面积、根体积、茎径最大,在pH8.5处理下,A、C、D、E组合实生苗的根长、根表面积、根体积最大;2C、D、E组合实生苗的根系活力在pH5.0时最高,B组合实生苗的根系活力在pH7.0时最高。整体而言,A、B、C、D、E组合实生苗在营养液pH7.0和pH8.5处理下的根系形态和植株生长较好。
基金
Supported by National Modern Agriculture Industry Technology System Construction Project(CARS-20-1-1)
Yunnan Key New Product Development and Planning Project(2011BB005)
Yunnan Key New Product Development and Planning(2012BB014)~~
