| 摘要: |
| 稗草生长明显降低了大豆籽粒蛋白质产量及氮素向其籽粒中的分配比例,但显著提高了大豆茎、叶、籽含氮量及氮素向其茎、叶中的分配比例。这种影响在座荚期渍涝和鼓粒期干旱条件下最为突出;稗草对大豆粒蛋白质生产的危害在幼苗期一开花期的渍涝条件下显著减轻,而在任一时期的干旱条件下均明显加重,且在座荚期的渍涝处理中比在幼苗期一开花期的溃涝处理中大。不同时期、不同旱涝胁迫处理对大豆籽粒蛋白质产量的降低程度不同,其中旱害远大于涝害,后期旱害大于前期旱害,先涝后旱的危害大于先旱后涝的危害;开花期大豆最不耐涝,鼓粒期最不耐旱。 |
| 关键词: 大豆 稗草 水分胁迫 含氮量 蛋白质 |
| DOI： |
| 投稿时间：1995-01-04 |
| 基金项目: |
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| Effects of Barnyardgrass and Water Stress on Nitrogen Content,Nitrogen Quata in Above-Ground Plant Oragns and Seed Protein Yield of Soybean |
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| Abstract: |
| Barnyardgrass(Echinochloa crus-galli)interference significantly reduced the seed protein yield and the nitrogen quata in seeds of soybean,but markedly increased the nitrogen content in its leaves,stems and seeds as well as the nitrogen quata in its leaves and stems.This effect was most promi- nent under the water stress combinationFirst water logging during the pod setting stage and then drought during the pod filling stage.Moreover,the protein-yield-reducing effects of barnyardgrass was signifi- cantly wea... |
| Key words: soybean barnyardgrass water stress nitrogen protein content |
