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Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective]To discover the optimum mung bean interplanting and straw returning time, the fertility effects of sugarcane/mung bean intercropping mode and mung bean straw returning were studied. [Method] A field experiment designed with split plot of 2 factors was conducted = aiming at revealing the effect of different treatments on agricultural characters, yield, and quality of sugarcane. [Result] Results showed that highest dry matter and N, P, K nutrient accumulation were showed in treatment of intercropping(sowing mung bean in sowing time of sugarcane + returning mung bean straw in fruiting period). After mung bean straw returning, the degradation rates of nitrogen, phosphorus, potassium were basically the same between the mode ol straw aboveground covering in early period and the mode ol straw underground covering. But the degradation rate between these two modes reversed in later period. Intercropping of sugarcane and mung bean brought about some negative effects on sugarcane emergence and tillering, the earlier the mung bean intercropped, the greater the negative effects. Height, cane diameter and single stem weight can be promoted by mung bean interplanting and its straw returning. The treatment of intercropping(sowing mung bean in sowing time of sugarcane + returning mung bean straw in fruiting period) presented highest cane production which was obviously higher than other treatment. There are no notorious differences of sugar brix in sugarcane juice between treatments of intercropping and noninlercropping. [Conclusion ] Intercropping of sugarcane and mung bean should be vigorously promoted. Il can promote soil fertility and sugarcane production without reducing sugar content. The best treatment is to intercrop mung bean in sowing time of sugarcane and return mung bean straw with aboveground covering mode in Iruiting period ol mung bean. [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

SoCYT cDNA was amplified using RT-PCR from sugarcane leaves, the characteristics of the deduced protein were analyzed using bioinformatics software and its expression was analyzed using quantitative real-time PCR. The results showed that the sequence contained a 796 bp full length fragment with a 579 bp open reading frame, and it encoded a putative SoCYT protein with 192 amino acids. Sequences alignment showed that the homology of cDNA sequence between sugarcane and Sorghum bicolor SoCYT gene was 94% , while the homology of amino acid sequence between them was 99%. The relative protein molecular weight was 20. 67 kD, the PI was 6.24, and the hydrophobic value was from -0.5 to 2.11. The molecular structure prediction results suggested that the protein contained 17.19%, -helix, 53.12% loop, 21.53% extended strand and 8.33% + meander. The sequence has been submitted to GenBank with an accession number of JQ712582. The results of quantitative real-time PCR analysis showed that the mRNA of SoCYT was decreased with time of PEG stress, significant differences were observed between the treatments of PEG and PEG + Si at 18 , 26, 40 , 64, 96, 144 h of the treatment. Silicon can slowdown the damage and effect of drought on the structure of the cytochrome b6/f complex. [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)