CAJ | 학술논문

采用不同氮素配比及人为改变源库比例，对生育后期水稻穗颈节与基部节间的伤流进行了研究。结果表明，穗颈节与基部节间的伤流强度随生育期变化及伤流液中的氨基酸含量和种类等存在明显差异；库叶源调节对两者的影响差异甚大。说明穗颈节伤流不仅与根系活性有关，可能与叶片、茎鞘及库容活性也有密切联系。合理的氮素配比有利于伤流强度的提高。
채용불동담소배비급인위개변원고비례，대생육후기수도수경절여기부절간적상류진행료연구。결과표명，수경절여기부절간적상류강도수생육기변화급상류액중적안기산함량화충류등존재명현차이；고협원조절대량자적영향차이심대。설명수경절상류불부여근계활성유관，가능여협편、경초급고용활성야유밀절련계。합리적담소배비유리우상류강도적제고。
By different nitrogen treatments and manual regulation ofsource-sink ratio, dynamic states of bleeding at neck-panicle node and basal internode of rice were studied. There were very difference in dynamic changes and amino acids of bleeding. The effects of source-sink ratio regulations on them were also significant. It indicate that the bleeding at neck-panicle node has relationship not only with root source activity, but also with leaf source, sheath-stem source and sink activity. The optimum ratio N fertilizer applied in early and late growth stage could improve bleeding intensity of rice.