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首页> 外文期刊>Acta Horticulturae >Ecophysiological characterization of C. sativa trees growing under different altitudes.
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Ecophysiological characterization of C. sativa trees growing under different altitudes.

机译:C的生理生态特征。在不同高度生长的苜蓿。

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The aim of this work was to compare chestnut growth (cv. Judia) during the year of 2007 at different altitudes (450, 600, 700, 850 and 1050 m a.s.l.). Concerning daily mean photosynthesis rate, highest rate was measured at 1050 m a.s.l., 21.8 degrees C, 11.3 micro mol.CO2.m-2.s-1, and the lowest one was 7.6 micro mol.CO2.m-2.s-1 determined in the lowest altitude (29.5 degrees C). Data also indicates a variation in photosynthetic pigment composition, showing an increase in Chla/Chlb from 3.1 to 3.7, respectively at 1050 and 450 m a.s.l. Contrarily a decrease in Chl/Car was observed. Moreover, unsaturation index increased as an altitude manner, while lipid peroxidation increased with the altitude. Leaf water potential, increased from 450 m a.s.l., -1.4 MPa, to 1050 m a.s.l., -0.81 MPa. Highest fruit size was found at 700 m a.s.l. with 50 fruits/kg, but it must be underlined that percentage of aborted fruits increased for altitudes above the 600 m a.s.l. from 20 until 100% yielded in the 1050 m a.s.l. orchard and below 600 m a.s.l., being 70%.
机译:这项工作的目的是比较2007年不同海拔高度(450、600、700、850和1050 m a.s.l.)的栗子生长(朱迪亚州)。关于日平均光合作用速率,最高速率在1050 m asl,21.8摄氏度,11.3 micro mol.CO 2 .m -2 .s -1下测得,最低的是在最低高度确定的7.6 micro mol.CO 2 .m -2 .s -1 (29.5摄氏度)。数据还表明光合色素组成的变化,表明Chla / Chlb在1050和450 m a.s.l时分别从3.1增加到3.7。相反,观察到Chl / Car降低。此外,不饱和指数随着海拔的升高而增加,脂质过氧化作用随海拔的升高而增加。叶片水势从450 m a.s.l. -0.81 MPa增加到1050 m a.s.l. -0.81 MPa。发现最高果实大小为700 m a.s.l.每公斤水果有50个,但必须强调的是,海拔超过600 m a.s.l的流产水果的百分比增加了。在1050 m a.s.l中从20到100%的产量果园且低于600 m a.s.l.,占70%。

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