期刊论文

Epibrassinolide regulation on oilseed rape (Brassica napus L.) in different period

中文

中国油料作物学报

1007-9084

2019

41

6

904-913

10.19802/j.issn.1007-9084.2019057

国家科技支撑计划课题(2014BAD11B03) 国家油菜产业技术体系(CARS-13)。

本校为第一机构

为了解油菜素内酯对甘蓝型油菜品质及弱光反应的影响,以湘油15号的2个辐照突变品系(含油量和产油量明显不同的XY881和XY883)为材料,研究油菜素内酯(epibrassinolide, 2,4-BL)在不同生育阶段对甘蓝型油菜生长发育的影响.通过盆栽试验和2014-2016年两年度田间试验,分析2,4-BL对种子萌发、营养生长、产油量及相关构成因子的影响.结果表明,2,4-BL对两品系的影响具有相似规律,包括:对种子萌发具有剂量效应,低浓度下促进种子萌发,高浓度下抑制种子萌发;在全生育期低剂量的2,4-BL促进主茎伸长、提高光合效率、促进结实,但不影响成熟种子大小和含油量;在盛花后使用,延缓种子成熟而造成授粉后40 d种子含油...

To understand the effect of brassinolide on quality and dim light reaction of Brassica napus L., 2 irradiated mutants (XY881 and XY883) of B. napus cv Xiangyou 15 were investigated to study the effects of epibrassinolide (2,4-BL) on seed germination, vegetative growth, oil production and related components by pot experiment and field trials from 2014 to 2016. Results showed that 2,4-BL had the same effects on both lines. 2,4-BL had dose effect on seed germination. Low concentration promoted seed germination. Low 2,4-BL promoted elongation of main stem, increased photosynthetic efficiency, and ...