| 陈传信,唐江华,陈佳君,王娜,符小文,杜孝敬,徐文修.种植方式对夏大豆鼓粒期叶片光合能力及籽粒灌浆特性的影响[J].干旱地区农业研究,2018,36(3):101~105 |
| 种植方式对夏大豆鼓粒期叶片光合能力及籽粒灌浆特性的影响 |
| Effect of planting patterns on photosynthetic capacity and grain filling characteristics of summer soybean at seed-filling stage |
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| DOI：10.7606/j.issn.1000-7601.2018.03.15 |
| 中文关键词: 种植方式 夏大豆 宽窄行种值 光合特性 灌浆特性 |
| 英文关键词:planting pattern summer soybean wide-narrow row spacing photosynthetic characteristics grain filling characteristics |
| 基金项目:国家自然科学基金资助项目（31560372） |
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| 中文摘要: |
| 选用黑河45号大豆为试验材料，在5.5×105株·hm-2密度下，设置等行距：30 cm（A）、40 cm（B）、60 cm（C）和宽窄行：“15 cm+30 cm”（D）、“15 cm+15 cm+60 cm”（E）5种种植方式处理，研究不同种植方式下夏大豆鼓粒期叶片光合能力及籽粒灌浆特性。结果表明，宽窄行处理的蒸腾速率（Tr）、气孔导度（Gs）、净光合速率（Pn）、叶面积指数（LAI）、光合势（LAD）比等行距处理分别增加16.92%~72.22%,12.50%~69.23%,7.73%~34.80%,1.13%~33.88%,5.87%~47.70%。宽窄行处理的籽粒阶段积累量、灌浆速率、灌浆持续时间平均值也高于等行距处理平均值。宽窄行处理的产量均高于等行距处理，宽窄行处理的平均产量比等行距处理的平均值增产24.51%。因此，宽窄行是促进复播大豆产量提高的最佳种植方式之一。 |
| 英文摘要: |
| Using summer soybean Heihe 45, a field experiment was conducted to study the effects of planting patterns on photosynthetic capacity and grain filling characteristics of summer soybean at seed-filling stage with plant population density of 5.5×105 plant·hm-2 of equal row spacing treatment in five planting patterns: 30 cm(A)、40 cm(B)、60 cm(C) and wide-narrow row treatment of “15 cm+30 cm”(D) and “15 cm+15 cm+60 cm”(E). The results suggested that transpiration rate (Tr)、stomatal conductance (Gs)、net photosynthetic rate (Pn)、leaf area index (LAI)、leaf area duration (LAD) of wide-narrow row spacing treatments were higher than those of equal row spacing treatments increased by 16.92%~72.22%,12.50%~69.23%,7.73%~34.80%,1.13%~33.88%,5.87%~47.70%. The average of grain phase accumulation、seed filling rate and seed filling duration of wide-narrow row spacing treatments were also higher than that of equal row spacing treatments. The yield of wide-narrow row spacing treatments were higher than that of equal row spacing treatments, the average yield of wide-narrow row spacing treatments was 24.51% higher than that of equal row spacing treatments. Therefore, the planting pattern of wide-narrow row spacing is one of the best cultivation patterns to improve yield increased for summer soybean. |
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