5-Aminolevulinc acid increases tree yield and improves fruit quality of 'Rabia' and 'Sukkariat-Yanbo' date palm cultivars under hot arid climate
5-Aminolevulinc acid increases tree yield and improves fruit quality of 'Rabia' and 'Sukkariat-Yanbo' date palm cultivars under hot arid climate
复制标题
DOI：
10.1016/j.scienta.2011.04.014
复制
发表时间：
2011-06-27
影响因子：
4.3
通讯作者：
Awad, Mohamed A.
中科院分区：
文献类型：
--
作者：
Al-Qurashi, Adel D.;Awad, Mohamed A.
生长在炎热干旱地区的椰枣通常面临着几种环境胁迫，这些胁迫限制了树木的生长和生产力，并对果实质量产生负面影响。2009年和2010年，研究了5-氨基酮戊酸（5-ALA）不同施用量对“拉比亚”和“苏卡里亚-岩波”两个枣椰品种产量、品质、色素含量和养分吸收的影响。在这两个品种中，与对照相比，5-ALA的应用显着增加束重和每棵树的产量。最高的串重量和每棵树的产量是通过在200 ppm的5-ALA，然后在果实串和叶片上施用250 ppm来实现的。这些都反映在较高的水果和肉重和水果长度，在bisir和rutab阶段。然而，仅在无叶的果串上施用250 ppm的5-ALA，与对照相比，仅在'Sukkariat-Yanbo'中而不是在'Rabia'品种中显著增加了每棵树的果串重量和产量。处理与季节互作效应对‘拉比亚’的穗重和产量影响显著，而对‘苏卡里亚特-艳波’的影响不显著。不同施肥处理对烤烟的芸香苷含量影响不显著，2009年拉比亚烤烟的芸香苷含量高于2010年，2010年苏卡利亚-岩波烤烟的芸香苷含量高于2009年。在bisir和rutab阶段的果实品质的物理参数的大部分显着改善，在两个品种相比，控制5-ALA应用，在对比的生化参数，不受影响。在这两个品种，叶绿素a浓度显着增加5-ALA的应用，特别是在200和250 ppm的叶片和果实与对照相比。虽然叶绿素B浓度没有显着影响的5-ALA的应用程序，总叶绿素浓度显着高于250 ppm的5-ALA的应用程序在两个品种比对照。不同剂量5-ALA的应用效果无显著性差异。叶绿素a/B比值没有显着影响5-ALA的应用相比，对照。与对照相比，施用5-ALA对两个品种叶片中的N、P和K含量没有显著影响。因此，在炎热干旱气候条件下，施用5-ALA对‘拉比亚’和‘苏卡里亚特-延博’两种枣树的产量、品质和叶绿素含量均有促进作用。(C)2011爱思唯尔有限公司版权所有。
Date palms growing in hot arid regions are generally facing several kinds of environmental stresses which limit tree growth and productivity and negatively affect fruit quality. During 2009 and 2010 seasons, the effects of 5-aminolevulininc acid (5-ALA) application at different rates on yield, fruit quality, pigment contents and nutrient uptake of 'Rabia' and 'Sukkariat-Yanbo' date palm cultivars were studied. In both cultivars, the application of 5-ALA significantly increased bunch weight and yield per tree compared to control. The highest bunch weight and yield per tree was achieved by 5-ALA at 200 ppm followed by 250 ppm applied on both fruit bunches and leaves. These were reflected on higher fruit and flesh weight and fruit length, at the bisir and rutab stages. However, the application of 5-ALA at 250 ppm only on fruit bunches without leaves significantly increased bunch weight and yield per tree compared to control only in 'Sukkariat-Yanbo' but not in 'Rabia' cultivar. There were significant interaction effects between treatments and seasons on bunch weight and yield in 'Rabia' but not in 'Sukkariat-Yanbo' cultivar. The rutab % was not significantly affected by any of the applied treatments and it was higher in 2009 than in 2010 season in 'Rabia', however, the opposite was true in 'Sukkariat-Yanbo' cultivar. Most of the physical parameters of fruit quality at both the bisir and rutab stages were significantly improved in both cultivars by 5-ALA application compared to control, in contrast to the biochemical parameters that were not affected. In both cultivars, chlorophyll a concentration significantly increased by 5-ALA application especially at 200 and 250 ppm on both leaves and fruits compared to control. While chlorophyll b concentration was not significantly affected by the 5-ALA application, total chlorophyll concentration was significantly higher at 250 ppm 5-ALA application than control in both cultivars. There were no significant differences among the different rates of 5-ALA application. Chlorophyll a/b ratio was not significantly affected by 5-ALA application compared to control. The concentrations of N, P and K in the leaves of both cultivars were not significantly affected by the 5-ALA application compared to control. It was concluded that 5-ALA application has promotive effects on yield, fruit quality and chlorophyll concentration of both 'Rabia' and 'Sukkariat-Yanbo' date palms under hot arid climate. (C) 2011 Elsevier B.V. All rights reserved.