期刊论文

Effects of Different Panicle-typed Varieties and Transplanting Densities on Yield,the Ability of Seedling Growth and Dry Matter Accumulation of Ratooning Rice

中文

灌溉排水学报

1672-3317

2020

39

5

48-57

10.13522/j.cnki.ggps.2020024

国家水稻产业技术体系岗位专家项目（CARS-01-26）；

本校为第一机构

【目的】探究不同移栽密度与不同穗型品种对再生稻再生季发苗能力及产量形成的影响。【方法】采用二因素裂区试验设计,以移栽密度为主区(D1:15万穴/hm~2、D2:18.75万穴/hm~2、D3:22.5万穴/hm~2、D4:26.25万穴/hm~2、 D5:30万穴/hm~2、D6:33.75万穴/hm~2),品种为副区(TYHZ:多穗型品种天优华占、HLY898:穗粒兼顾型品种徽两优898、YLY900:大穗型品种Y两优900)。【结果】穗粒兼顾型品种HLY898与多穗型品种TYHZ在D3处理下再生季产量最高,大穗型品种YLY900在不同移栽密度下再生季产量无显著差异。不同穗型品种下,产量及产量构成、发苗能力、干物质积累与分配、再生季空蔸率(头季纹枯病导致再生季空蔸)...

【Objective】The purpose of this paper is to explore the effects of different panicle-typed varieties and transplanting densities on the ability of seeding growth and yield in the ratooning season of ratooning rice.【Method】 The split-plot experiment of double factors was designed, the transplanting densities was main-plot (D1: 1.5×10~4 hills per hectare, D2: 1.875×10~4 hills per hectare, D3: 2.25×10~4 hills per hectare, D4: 2.625×10~4 hills per hectare, D5: 3.0×10~4 hills per hectare, D6: 3.375×10~4 hills per hectare), the panicle-typed...