Variation in photosensitivity of flowering in the world soybean mini-core collections (GmWMC).
Variation in photosensitivity of flowering in the world soybean mini-core collections (GmWMC).
复制标题
世界大豆迷你核心品种（GmWMC）开花光敏性的变化。
DOI：
10.1080/1343943x.2018.1561197
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
S. Watanabe and S. H. Zheng
中科院分区：
文献类型：
--
作者：
Islam;M. R. ;D. Fujita;S. Watanabe and S. H. Zheng
开花光敏性是热带地区大豆产量的主要限制因子。研究了世界大豆微核心种质（GmWMC）在受控环境下的光敏性变化。选择10和13 h作为短光周期和长光周期。13 h光周期下，出苗至始花天数为20-49 d，10 h光周期下为20-31 d。短光周期下DEF的变化可能是由幼态生长期或诱导后阶段引起的，因为10 h是大多数基因型诱导期最短的光周期。短光周期条件下，开花光敏感指数（IPF）在0.00 ~ 0.47之间，与DEF呈显著正相关。这些结果为热带地区大豆生产提供了有价值的信息。缩写DEF：出苗至开花天数; IPF：开花光敏性指数; JGP：幼年生长期;GmWMC：世界大豆微型核心种质。
Photosensitivity of flowering is the main yield limiting factor for soybean production in tropical areas. Our objective was to evaluate the variation of photosensitivity in the world soybean mini-core collections (GmWMC) under controlled environment. Ten and 13 h were selected as short- and long- photoperiods. The days from emergence to first flower open (DEF) were 20–49 days under 13 h, whereas 20–31 days under 10 h photoperiods. The variation in DEF under short photoperiod might be caused by juvenile growth phase or post-inductive phase, because 10 h was the photoperiod which induction phase of most genotypes were minimized. Index of photosensitivity of flowering (IPF) varied from 0.00 to 0.47 and correlated positively with DEF under short photoperiod. However, some genotypes were found having higher IPF but shorter DEF, or lower IPF but longer DEF. Results provided the valuable information for soybean production in tropical areas.AbbreviationsDEF: days from emergence to first flower open; IPF: index of photosensitivity of flowering; JGP: juvenile growth phase;GmWMC: world soybean mini-core collections.