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| 不同灌溉上限对芥蓝同化物积累和分配的影响(英文) | |
| 引用本文： | 曹健,张白鸽,罗少波,宋钊. 不同灌溉上限对芥蓝同化物积累和分配的影响(英文)[J]. 农业科学与技术, 2016, 0(3): 629-632. DOI: 10.3969/j.issn.1009-4229.2016.03.033 |
| 作者姓名： | 曹健 张白鸽 罗少波 宋钊 |
| 作者单位： | 广东省农业科学院蔬菜研究所，广东省蔬菜重点实验室，广东广州 510640 |
| 基金项目： | (2015A020209068)，Guangdong Province Science and Technology Project，High-efficient Cultivation and Nonpoint Source Pol ution Control in Typical Vegetable Fields-Farmland Comprehensive Treatment Technology Plan on Chemical Fertilizer Nonpoint Source Pol ution(201502103)，Special Fund for Agro-scientific Research in the Public Interest.基金项目测墒自动灌溉技术在蔬菜生产的应用研究与示范[(2015A020209068)，广东省科技计划项目]；华南蔬菜高效栽培与典型菜田面源污染控制技术研究---化肥面源污染农田综合治理技术方案(201502103)；农业部公益性行业(农业)科研专项。 |
| 摘 要： | [目的]为了明确土壤水分对芥蓝生长及其同化物植株中积累和分配影响,[方法]研究相同灌溉频率下不同灌溉上限对芥蓝植株生长速率、净同化速率及各器官干物质分配的变化规律。[结果]调节土壤水分能够极显著影响芥蓝同化物积累过程;土壤水分亏缺使苗期至商品成熟的生长期大幅延长,生长速率极显著下降,生长期与生长速率呈极显著负相关;同时使叶片净同化速率极显著下降。土壤含水量65%时植株各器官的干物质分配较合理,基叶和基茎的物质较充分撤离,菜薹干物质分配比例显著提高。[结论]用控制灌溉上限进行调亏灌溉能极显著降低芥蓝株植生长速率,改善植株各器官的干物质分配比例,提高经济产量和品质。 |
| 关 键 词： | 芥蓝 土壤水分 同化物积累 灌溉 |
Effect of Different Irrigation Maximums on Accumulation and Distribution of Material in Chinese Kale |
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| Abstract: | Objective] The aim was to explore effects of soil moisture on dry matter accumulation and distribution and growth of kai-lan. [Method] In the context of the same irrigation frequency, the influence of irrigation maximum was researched on growth rate, net assimilation rate, and dry matter distribution of kai-lan. [Result] The results showed that regulation on soil moisture extremely significantly affected accu-mulation of photosynthate. When soil moisture was insufficient, the growth term from seedling to mature extended and growth rate declined sharply. Besides, the growth term was of extremely significant negative correlation with growth rate. Meanwhile, leaf assimilation rate decreased considerably. For example, when soil moisture was 65%, distribution of dry matter in plant organs tended to be rational. [Conclusion] Deficit irrigation would significantly lower growth rate, and improve dry matter distri-bution in organs and economic yield and quality of kai-lan. |
| Keywords: | Chinese kale Soil Moisture Photosynthate accumulation Irrigation |
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