Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain
| العنوان: | Grain number responses to pre-anthesis dry matter and nitrogen in improving wheat yield in the Huang-Huai Plain |
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| المؤلفون: | Yunhui Shao, Xingxu Ren, Yapeng Wu, Jianzhao Duan, Tiancai Guo, Yi Zhou, Yunji Zhu, Yonghua Wang, Wei Feng |
| المصدر: | Scientific Reports Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018) |
| بيانات النشر: | Nature Publishing Group UK, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | 0106 biological sciences, Yield (engineering), Agricultural Irrigation, Nitrogen, Science, chemistry.chemical_element, Positive correlation, 01 natural sciences, Article, Animal science, Anthesis, Dry matter, Nitrogen cycle, Triticum, Mathematics, Agricultural irrigation, Multidisciplinary, Grain number, Water, 04 agricultural and veterinary sciences, Plant Leaves, chemistry, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries, Medicine, Seasons, Edible Grain, 010606 plant biology & botany |
| الوصف: | Wheat yield components vary between different ecological regions and yield levels. Grain number responses to pre-anthesis dry matter (DM) and nitrogen (N) in increasing yield were always investigated in spike organs, neglecting the effect of non-spike organ nutrition or overall distribution. This paper determined the relationships between grain number and pre-anthesis DM and N in spike and non-spike organs under different yield levels, with using two sorts of field experiments (different water-nitrogen modes and cultivation management patterns) from 2012–2015 in Huang-Huai plain. The results indicated that improving yield under yield of −1 depends on increasing grain number per spike (GNs) or spike number (SN) or both, increased yield under higher yield of >7500 kg ha−1 mainly depends on GNs. GNs showed significant positive relationships with above-ground DM accumulation from jointing to anthesis under high or low yield levels. Rapid DM growth in spring achieves higher GNs. Spike and non-spike DM and N contents both demonstrated strong positive relationships with GNs, spike DM distribution also shows a positive correlation, but spike N distribution ratio show negatively correlation with GNs. Improved N distribution in non-spike organs and DM partition in spike organs conduce to increasing GNs. |
| اللغة: | English |
| تدمد: | 2045-2322 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5914e0ec6aed2ebe2dd2324385de2ec http://europepmc.org/articles/PMC5940900 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....f5914e0ec6aed2ebe2dd2324385de2ec |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20452322 |
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