氮肥用量及运筹对优良食味粳稻越光产量形成及根系形态的影响

许芸菲, 贾浩杨, 李叶彤, 曹瑞, 高梓淇, 赵喆, 陈立强, 梁潇

Effects of Nitrogen Application Rate and Management on Yield Formation and Root Morphology of High-Quality Japonica Rice Cultivar Koshihikari

Xu Yunfei, Jia Haoyang, Li Yetong, Cao Rui, Gao Ziqi, Zhao Zhe, Chen Liqiang, Liang Xiao

图5 各指标间相关性分析 PN：穗数，GNPP：穗粒数，SSR：结实率，TGW：千粒重，Y：产量；TDMW：总干物质量，SSDW：茎鞘干物质量，LDW：叶干物质量，PDW：穗干物质量；RSR：根冠比，MRL：最大根长，TRL：总根长，RSA：根表面积，TRV：根系总体积，EAA：高效吸收面积，TAA：总吸收面积，NBPP：枝梗数，GN：粒数，SD：着粒密度。

Fig.5 Correlation analysis among various parameters PN: panicle number, GNPP: grains number per panicle, SSR: seed-setting rate, TGW: 1000-grain weight, Y: yield; TDMW: total dry matter weight, SSDW: stem and sheath dry weight, LDW: leaf dry weight, PDW: panicle dry weight; RSR: root-shoot ratio, MRL: maximum root length, TRL:total root length, RSA: root surface area, TRV: total root volume, EAA: effective absorption area, TAA: total absorption area, NBPP: number of branches per panicle, GN: grain number, SD: spikelet density.