江优明62在永安种植表现及产量构成因素分析

摘要

江优明62是福建省三明市农业科学研究所育成的晚籼中熟三系杂交稻新品种,在福建永安市作晚稻种植表现出高产、转色好、抗性较好等优点。进行产量构成因素相关和通径分析,该品种构成产量的主要因素是单位面积有效穗。其作晚稻种植高产栽培技术要点：主攻单位面积有效穗数、穗粒数,创建理想的高产群体结构,并发挥其内在的大穗优势、提高结实率和千粒重。%＂Jiangyouming 62＂ , a new late season moderate mature indica tri-line hybrid rice variety, bred by Sanming Research Institute of Agricultural Science, and performed high yielding, well color changing, good resistance etc. as late season rice in Yong＇ an city. According to yield components correlation and path analysis, effective panicles number per unit area is the principle element of yield components of ＂Jiangyouming 62＂ . Essentials of high yield cultivation techniques as late season rice are： specializing in effective panicles number per unit area, grain number per spike, creating ideal high yield population structure, and giving scope to large panicle advantage, improving seed setting rate and 1000-grain weight.