知识与财富的链接
采用水培试验研究冬小麦钼高效品种97003和钼低效品种97014对钼的吸收累积能力差异及其与根系形态特征的关系,结果表明:冬小麦钼高效品种97003在缺钼条件下钼累积量高于钼低效品种97014.冬小麦钼高效品种97003向叶片中转移钼的能力高于钼低效品种97014,在施钼和不施钼时,97003叶片中钼的累积量分别占整株累积量的86.2％和96.3％,高于97014的78.9％和87.2％.同时,2个冬小麦品种在根系形态上还存在基因型差异.缺钼条件下,冬小麦钼高效品种97003具有较好的根系形态特征,根长、根表面积、根体积、平均直径分别是97014的1.16、1.41、1.21、1.73倍,在根表面积、根体积、平均直径上差异达显著水平.缺钼时,97003的总根长、根系总表面积、根系总体积、平均直径分别为施钼时的1.13、1.28、1.12、1.44倍,且除总根长外,各参数均达显著水平.无论是否施钼,97014的各参数差异不显著.
The differences of Mo absorption and its relationship with root morphology between Mo-efficient winter wheat cultivar 97003 and Mo-inefficient winter wheat cultivar 97014 were studied with nutrient solution culture.The results showed that the accumulation of Mo at shoots of cultivar 97003 was higher than that of cultivar 97014 under Mo deficiency.In addition cultivar 97003 had higher ability of transferring Mo to leaves than that of cultivar 97014.Under two Mo levels,Mo accumulation in leaves and the whole plant of cultivar 97003 was 86.2% and 96.3%,higher than that of cultivar 97014,which was 78.9% and 87.2%.The root morphology of two winter wheat cultivars under Mo deficiency were different,cultivar 97003 had good root morphology.The root length,surface area,volume and average root diameter of cultivar 97003 were 1.16,1.41,1.21,1.73 times higher than those of 97014,surface area,volume and average root diameter were all significantly higher than those of 97014.The root length,surface area,volume and average root diameter of cultivar 97003 were 1.13,1.28,1.12,1.44 times higher under Mo deficiency than those in providing Mo treatment.Expected root length,surface area,volume and average root diameter were all significantly higher than those in providing Mo treatment.In contrast,root length,surface area,volume and average root diameter of cultivar 97014 had no significant difference whether providing Mo or not.
