N. Tritean, I. Berindean, Adina Varadi, R. Kadar, Diana Hiriṣcău, Edward Muntean, I. Racz
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引用次数: 0
摘要
在两个试验年（2019-2020 年）期间，对 5 个罗马尼亚冬小麦基因型在 4 种不同施肥制度下的叶绿素 a、叶绿素 b 和类胡萝卜素含量、粒数/穗、粒重/穗、千粒重分别进行了分析。结果表明，施用额外肥料会增加所分析的性状，同时也会导致性状变异的增加。关于不同施肥量对旗叶光合色素的影响，每个品种的光合色素浓度都不同。叶绿素 a 类型的最高值出现在 Cezara 品种上（665.83 毫克/千克干重），施肥量为 150 千克标准/公顷，施肥期为引导期。旗叶中叶绿素 b 浓度的变化与叶绿素 a 浓度的变化相似，都是对不同氮肥剂量的反应，叶绿素 b 的最高值出现在 T. 109-12 F4 期（519.64 毫克/千克干重）。在 F2 施肥水平下，旗叶类胡萝卜素浓度从 Dumitra 品种（F3）的 3.93 毫克/千克（干重）到 Andrada 品种的 97.63 毫克/千克（干重）不等。
VARIATION OF CHLOROPHYLL AND CAROTENOID PIGMENTS IN SOME WINTER WHEAT FLAG LEAF UNDER DIFFERENT FERTILIZER REGIMES
Five Romanian winter wheat genotypes were analyzed during two experimental years (2019-2020) under four different regime fertilizers for chlorophyll a, chlorophyll b and carotenoid contents from flag leaf, respectively, number of grains/spike, weight of grains/spike, thousand kernel weight. The results showed that the application of additional fertilization increase the analyzed traits, also causing an increase of traits variability. Regarding the variation of photosynthetic pigments from flag leaf as an effect of different fertilizer levels, their concentration is specific to each variety. The highest value of chlorophyll a type is observed in Cezara variety (665.83 mg/kg DW) at N150 kg s.a./ha fertilization level applied in a boot stage. The variation of chlorophyll b concentration in flag leaf is similar to chlorophyll a concentration as a reaction of different nitrogen dose aplication, the highest value for this type of chlorophyll being registered in T. 109-12 at F4 (519.64 mg/kg DW). Carotenoid concentration from flag leaf varies from 3.93 mg/kg DW at Dumitra variety (F3) to 97.63 mg/kg DW at Andrada variety in F2 fertilization level.
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