|Table of Contents|

Effects of Different Nodulation Varieties and Ｒoot Barriers on PhotosyntheticCharacteristics，Biomass and Yield of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2016年03期
Page:
428-435
Research Field:
Publishing date:

Info

Title:
Effects of Different Nodulation Varieties and Ｒoot Barriers on PhotosyntheticCharacteristics，Biomass and Yield of Soybean
Author(s):
DU Qing; CHEN Ping; FU Zhi-dan; PANG Ting; YANG Huan; YANG Yan-zhu; YONG Tai-wen
?College of Agronomy，Sichuan Agricultural University / Key Laboratory of Crop Physiology，Ecology and Cultivation in Southwest China，Ministry of Agriculture，Chengdu 611130，China
Keywords:
Maize-soybean intercropping;  Nodulation;  Ｒoot barrier;  Photosynthetic characteristics;  Yield
PACS:
S565. 1
DOI:
10.11861/j.issn.1000-9841.2016.03.0428
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.

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Last Update: 2016-06-28