Effect of temperature and radiation on photosynthesis productivity in chestnut populations ( Castanea sativa Mill. cv. Judia)

Effect of temperature and radiation on photosynthesis productivity in chestnut populations ( Castanea sativa Mill. cv. Judia)
复制标题

温度和辐射对板栗种群光合作用生产力的影响 (Castanea sativa Mill. cv. Judia)

DOI:
10.1556/aagr.55.2007.2.7
复制
发表时间:
2007
期刊:
Acta Agronomica Hungarica
影响因子:
--
通讯作者:
J. Gomes
J. Gomes
中科院分区:
--
文献类型:
--
作者:
P. Almeida;L. Dinis;J. Coutinho;T. Pinto;R. Anjos;J. Ferreira;M. Pimentel;F. Peixoto;J. Gomes

文献摘要

被引文献

相似文献

在不同的温度和辐射水平下,在7个板栗品种Judia从不同的部分的Tras-os-Montes地区,葡萄牙的幼苗群体的气体交换参数进行了研究。发现最佳温度的差异,其对于JD 7为31°C,对于JD 5为31.5°C,对于JD 2为32°C,对于JD 4为32.5°C,对于JD 3和JD 6为33°C,并且对于JD 1和耐墨杂交种BRO 310为33.5°C。在这些数值下,JD 6和JD 7的光合速率介于8.7和13.4 mmol CO 2 m −2 s −1之间,而允许90%最大光合作用的光照条件介于650(JD 6)和1385(JD 4)μmol m −2 s −1之间。叶水势以JD 1最高,为-0.35Mpa,JD 6、JD 7和BRO 310最低,为-0.65Mpa。气孔导度(93 mmol m −2 s −1)和蒸腾速率(3.0 mmol H2 O m −2 s −1)也是第二低的。在光合色素方面,JD 3和JD 7是最喜光的无性系,其叶绿素a/B比值最高(3.2 mmol m −2 s −1),叶绿素a/B比值最低(3.2 mmol m −2 s −1),叶绿素a / B比值最高(3.2 mmol m − 2 s − 1),叶绿素b/B比值最低(3.2 mmol m − 2 s − 1),叶绿素a / B比值最高(3.2 mmol m − 2 s − 1),叶绿素b/b比值最低(3.2 mmol m − 2 s − 1),叶绿素a / b比值最高(3.2 mmol m −2 s − 1),叶绿素b/b比值最高(3.2 mmol m −2 s −1),叶绿素a/b比值最高(3.2 mmol m − 2 s − 1
Studies on gas exchange parameters were made at different temperatures and radiation levels in seven seedling populations of chestnut cultivar Judia from different parts of the Tras-os-Montes region, Portugal. Differences were found for the optimal temperature, which was 31°C for JD7, 31.5°C for JD5, 32°C for JD2, 32.5°C for JD4, 33°C for JD3 and JD6, and 33.5°C for JD1 and the ink-resistant hybrid BRO310. At these values, rates of photosynthesis ranged between 8.7 and 13.4 mmol CO 2 m −2 s −1 for JD6 and JD7, while the light conditions allowing 90% of maximal photosynthesis varied between 650 (JD6) and 1385 (JD4) μmol m −2 s −1 . JD1 showed the highest value of leaf water potential, −0.35 Mpa, and JD6, JD7 and BRO310 the lowest, −0.65 Mpa. JD1 also showed the second lowest stomatal conductance (93 mmol m −2 s −1 ) and transpiration rate (3.0 mmol H 2 O m −2 s −1 ).In relation to the photosynthetic pigments, JD3 and JD7 were the most sun-loving clones having the highest values for the Chl a / b ratio (3.2...