土壤与作物2024，Vol.13Issue(2)：215-224,10.DOI:10.11689/sc.2023102402
水田搅浆方式对水稻根系生长及产量的影响
Effects of puddling methods on root growth and yield of rice in a paddy soil
摘要
Abstract
In order to reveal the effects of puddling methods on the morphology and physiological activity of rice root relative to yield formation in a paddy field in the cold region,a rice cultivar,Longjing 31 was used and three puddling methods were compared,i.e.dry flatting but no puddling(HP),wet flatting but no puddling(SP)and conventional puddling as the control(CK).The root morphology,root physiological activity,biomass and yield of rice at different growth stages were measured.The results showed that the root morphology tended to be stable at heading and flowering stages.Compared with CK,HP significantly increased total root length,total root surface area,total root volume and average root diameter by 14.1%,8.79%,7.16%and 4.06%,respectively,while SP only increased total root length by 6.43%.The physiological activity of root reached the maximum at the heading and flowering stages.Compared with CK,HP and SP significantly increased root oxidation activity by 16.1%and 5.51%,and root bleeding intensity by 10.2%and 5.74%,respectively.Compared with CK,the rice yield under HP and SP significantly increased by 7.65%and 4.03%.To sum up,compared with CK,HP can significantly improve root morphology and physiological activity,and then stimulate the aboveground growth and yield of rice.关键词
水田搅浆方式/水稻根系/形态结构/生理活性/产量Key words
puddling method/rice root system/morphological structure/physiological activity/yield分类
农业科技引用本文复制引用
曹毓凯,于兴龙,王林鹤,时雁,王洋..水田搅浆方式对水稻根系生长及产量的影响[J].土壤与作物,2024,13(2):215-224,10.基金项目
中国科学院战略性先导科技专项(XDA28100303). （XDA28100303）
