期刊论文

Screening and evaluation method of early rice varieties suitable for mechanical transplanting in southern Hunan

中文

南方农业学报

2095-1191

2020

51

4

798-805

10.3969/j.issn.2095-1191.2020.04.009

国家重点研发计划项目（2018YFD0301005）~~；

本校为第一机构

【目的】筛选适宜湘南地区机插的双季早稻品种,并探索早稻移栽期指标与品种宜机插的关联性,为快速筛选宜机插早稻品种提供理论与实践依据。【方法】采用随机区组设计,考察12个早稻品种的生育期、秧苗素质、根系盘结力、发根力、返青期、根系伤流强度与产量及产量构成等指标,通过相关性分析等方法确立筛选评价指标,并以综合指数法进行宜机插综合评价。【结果】各参试品种的生育期存在年际间差异,可能与试验期间的气候因素有关。从秧苗素质来看,陵两优1309的发根力(16.79 cm)和根冠比(0.57)均最高,发根力显著高于其他品种(P0.05,下同);从产量及产量构成因素来看,陵两优1309的每穗粒数(129.2粒)及产...

【Objective】In order to provide a theoretical and practical basis for the rapid screening of early rice varieties suitable for mechanical transplanting,the early rice varieties suitable for mechanical transplanting in Hunan were selected and the correlation between the indexes of early rice transplanting period and the varieties suitable for mechanical transplanting were explored.【Method】In this study,the growth period,seedling quality,root entwining force,root-developing ability,greening period,root damage flow intensity,yield and yield com...