XIA Dong-dong,HE Zhang,LIU Bing,et al.Study on Photosynthetic Parameters in Leaves Senescence of Soybean Varieties Released at Different Ages in Jilin Province[J].Soybean Science,2017,36(04):567-577.[doi:10.11861/j.issn.1000-9841.2017.04.0569]
吉林省不同时期育成大豆品种叶片衰老过程中光合相关参数的研究
- Title:
- Study on Photosynthetic Parameters in Leaves Senescence of Soybean Varieties Released at Different Ages in Jilin Province
- Keywords:
- Cultivated soybean; Senescence; Photosynthesis
- 文献标志码:
- A
- 摘要:
- 为了探明吉林省不同时期育成的栽培大豆品种在叶片衰老过程中光合相关参数变化,将1923-2006年划分为4个时期,第一时期为1960年以前、第二时期为1961-1980年、第三时期为1981-2000年和第四时期为2001年以后,以吉林省不同时期育成的20个栽培大豆品种为材料进行田间试验。用Li-6400光合测定仪在R2(开花期)、R4(结荚期)、R6(鼓粒期)和R7(成熟期)进行叶片光合相关参数测定。结果表明:不同时期育成大豆品种,在R4、R6和R7期净光合速率、叶绿素含量和比叶重皆表现为:第一时期<第二时期<第三时期<第四时期。从衰老进程来看,R4~R6期,不同时期育成大豆品种的净光合速率、气孔导度、蒸腾速率及叶绿素含量下降值比皆表现为:第一时期>第二时期>第三时期>第四时期。R6~R7期,大豆品种比叶重下降值比表现为:第一时期>第二时期>第三时期>第四时期。这说明随着品种遗传改良,改善了大豆叶片光合相关参数,提高了叶片的光合作用,延长了光合时间,从而延缓叶片衰老,为产量的提高奠定物质基础。
- Abstract:
-
In order to find out the change of photosynthetic parameters during the senescence of soybean cultivars released in different ages in Jilin province, The time from 1923 to 2006 was devided into four periods: The first period was before 1960, the second period was 1961-1980, the third period was 1981-2000 and the fourth period was after 2001. Twenty soybean cultivars released in different periods of Jilin province were used for field experiment. The photosynthetic parameters of leaves were measured by Li-6400 photosynthesis apparatus at R2 (flowering stage), R4 (podding stage), R6 (granule stage) and R7 (maturation stage). The results showed that during R4,R6 and R7 the net photosynthetic rate, chlorophyll content and specific leaf weight of soybean cultivars cultivated in different periods were as follows:the first period
the second period>the third period>the Four periods. From the R6 to the R7 stage, the specific leaf weight decline ratio performance as follows: the first period> the second period> the third period> the fourth period. This indicated that with the genetic improvement of the varieties, the photosynthetic parameters of soybean leaves were improved, the photosynthesis of the leaves was increased, the photosynthetic time was prolonged, and the leaf senescence was delayed, which laid the material foundation for the improvement of the yield.
参考文献/References:
[1]徐晨,张鹏,徐克章,等.干旱胁迫对不同大豆品种叶片光合及生理特性的影响[J].中国油料作物学报,2013,35(6):674-679.(Xu C, Zhang P, Xu K Z, et al. Effects of drought stress on leaf photosynthesis and some physiological traits in different soybean cultivars[J]. Chinese Journal of Oil Crop Sciences, 2013,35(6):674-679.)
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备注/Memo
基金项目:国家自然科学基金(31171459);吉林省自然科学基金(20140101143JC)