DU Qing,CHEN Ping,FU Zhi-dan,et al.Effects of Different Nodulation Varieties and Root Barriers on PhotosyntheticCharacteristics,Biomass and Yield of Soybean[J].Soybean Science,2016,35(03):428-435.[doi:10.11861/j.issn.1000-9841.2016.03.0428]
不同结瘤品种与根系分隔对大豆光合特性、生物量及产量的影响
- Title:
- Effects of Different Nodulation Varieties and Root Barriers on PhotosyntheticCharacteristics,Biomass and Yield of Soybean
- Keywords:
- Maize-soybean intercropping; Nodulation; Root barrier; Photosynthetic characteristics; Yield
- 分类号:
- S565. 1
- 文献标志码:
- A
- 摘要:
- 采用根系分隔盆栽试验,研究了强结瘤( NTS1007) 和弱结瘤( 南豆12) 大豆品种在3 种不同根系分隔方式( B1,B2,B3) 下大豆的光合特性、农艺性状、生物量及产量的变化规律。结果表明: 相对于弱结瘤处理,强结瘤品种可提高大豆的净光合速率,且在R1 期达到最大值,比弱结瘤增加了13. 17%。随着生育时期的推移,强结瘤品种较弱结瘤品种增加大豆生物量,增幅呈先减少后增加的趋势,从V3 期30. 95% 减小到R1 期1. 27%,在R4 期增长到23. 36%。相对于强结瘤品种,弱结瘤品种可降低大豆株高,在V3、R1、R4 期下分别降低了18. 68%、40. 90%、21. 65%; 增加大豆单株粒数、百粒重与籽粒产量,分别增加87. 03%、14. 88%、55. 94%。不同根系分隔方式下,尼龙网分隔有利于改善大豆的农艺性状。在V3、R1、R4 期,尼龙网分隔较完全分隔株高分别降低了17. 05%、9. 74%、5. 51%; 在R1、R4 期下,尼龙网较不分隔处理茎粗分别增加了4. 85%、9. 78%。大豆净光合速率在V3、R1、R4 期均为尼龙网分隔最高,在V3、R1、R4 期较完全分隔高14. 67%、2. 82%、24. 00%。大豆根与茎的生物量在V3 期尼龙网分隔最高,较不分隔分别高40. 00%、6. 06%,在R1、R4 期下完全分隔最高,较尼龙网分隔分别高16. 45%、8. 59%。叶与荚的生物量在V3 期以完全分隔最高,较尼龙网高17. 14%; 在R1、R4 期下均以不分隔最高,与尼龙网分隔相比分别高10. 55%、11. 01%。不同根系分隔方式对大豆的产量有显著影响,大豆百粒重与籽粒产量均为不分隔> 尼龙网分隔> 完全分隔,不分隔下大豆百粒重与产量较完全分隔分别高11. 22%、25. 45%。
- Abstract:
- To explore the effect of different soybean varieties nodulation ability and root barriers on soybean growth characteristicsand yield,provided reference to development the mechanism of crops root interaction in intercropping system,the pot experimentwas conducted with different root barriers ( B1,B2,B3) to research on photosynthetic characteristics,agronomicvariation characters,biomass and yield of strong nodulation ( A1: NTS1007) and weak nodulation ( A2: South beans 12) soybeancultivars. The results showed that: Compared with weak nodulation varieties,strong nodulation varieties increased netphotosynthetic rate,which improved 13. 17% at R1. With growth period passed,the biomass of strong nodulation varieties increased,compared with weak nodulation varieties,increased by 30. 95% at V3,1. 27% at R1,23. 36% at R4,respectively.Compared with strong nodulation varieties,the height of weak nodulation varieties,at V3,R1,R4 decreased by 18. 68%,40. 90%,21. 65% respectively; and grains per plant,100-seed weight,grain yield increased by 87. 03%,14. 88%,55. 94%,respectively. Under different root barriers,separate by nylon mesh was advantage to improve soybean agronomictraits. Compared with plastic barriers,the height of plant at V3,R1,R4 were decreased by 17. 05%,9. 74%,5. 51%,respectively;the stem diameter at R1,R4 were increased by 84. 85%,9. 78%,compared with nylon barriers,respectively.The net photosynthetic rate of soybean under nylon barriers were highest at V3,R1,R4,and 8. 66%,8. 18%,5. 58% higherthan that of no barriers. Biomass of soybean root and stem at V3 was the highest,and 40. 00%,6. 06% higher than that ofno barriers,respectively,plastic barriers were the highest at R1 and R4,16. 45% and 8. 59% higher than that of nylon barriers.The biomass of leaf and pod under plastic barriers was the highest at V3,17. 14% higher than that of nylon barriers,andno barriers were highest at R1 and R4,10. 55% and 11. 01% higher than nylon barriers,respectively. Different barriers patternhad significant effect on soybean yield,100-seed weight and grain yield under different treatments were no barriers > nylonbarriers > plastic barriers,and 100-seed weight and yield of soybean were 11. 22%,25. 45% higher than that of plasticbarriers,compared to no barriers.
参考文献/References:
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备注/Memo
基金项目: 农业部公益性行业( 农业) 科研专项( 201203096) 。