施铜量对杂交中稻叶片和分蘖生长的影响

Effects of Different Copper Application Amounts on the Growth of Leaves and Tillers in Middle Season Hybrid Rice

采用盆栽土培试验,以II优50329、03A/99046、金优50329和II优225为材料,研究了土壤施铜对杂交中稻叶片和分蘖生长的影响。结果表明,200μg/g土施铜量抑制水稻的主茎叶片数,而400μg/g土却促进。400μg/g土施铜量促进出叶和分蘖,200μg/g土则减慢。土壤含铜量小于400μg/g土的地区可种植II优50329、03A/99046,土壤含铜量小于200μg/g土可种植II优225品种,而土壤含铜量大于400μg/g土的地区可种植金优50329。

II you50329,03A/99046,Jinyou50329 and IIyou225 were used as the experimental materials,effects of different copper application amounts（0μg/g soil,200μg/g soil and 400μg/g soil） on the growth of leaves and tillers in middle season hybrid rice were studied in pot culture experiment.The results showed that the leaves of main stem were inhibited under 200μg/g soil and improved under 400μg/g soil.The growth rate of leaves and tillers were improved under 400μg/g soil and inhibited under 200μg/g soil. II you50329 and 03A/99046 could be properly planted under less than 400μg/g Cu content in soil,IIyou 225 could be properly planted under less than 200μg/g Cu content in soil,but Jinyou50329 could be prop-erly planted under more than 400μg/g Cu content in soil.