Physiological Effects of Biological Control Aureobasidium pullulans on Barley Varieties Infected with Rhizoctonia solani

Thuraya Al-zubaidy, Hadeel A. Al-Ameri
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Abstract

In a greenhouse experiment, barley varieties infected with R. solani showed a significant decrease in plant height, number of leaves, spike number, and number of grains in spike while the treatment of these varieties with biological control Aureobasidium pullulans showed a significant increase in plant height, number of leaves, number of spikes, and number of grains in spike compared to untreated one. moreover, of biological control A . pullulans to R . solani induced a significant improvement in vegetative growth, In the treatment with biological control A . pullulans in addition to R. solani , the highest rate of plant height was found in Aswad two rows variety and reaching 38.81cm. in the second reading, up from 16.52 cm. in the first reading. Among Rehan white six rows that received the treatment with R. solani alone, the lowest plant height, reached 22.08 cm. in the second reading, and it increased from the first reading. Ebaa 265 White six rows variety produced the most number in the treatment with biological control A. pullulans added to R. solani , reaching 8.66 leaves per plant., In the Nour white two rows variety, the lowest leaf rate was 6.6 leaves in the treatment R. solani alone. Aswad two rows variety exhibited the highest spike of barley when treated with biological control A. pullulans alone, reaching 5 spikes in the first, second, and third readings. Among the three readings, there were no spikes in Samir White variety when treated with R. solani alone. the average grains number in spikes, the highest rate was in the treatment of sterilized soil with formalin (control) in Aswad two rows variety which amounted to 7.67 grains in the second reading, up from 7.2 grains in the four reading. Biological control A. pullulans were added to R. solani in the variety Ebaa 265 White six rows, as it, and increased from 4.6 grains in the first to 9.8 in the second reading.
根腐心菌对大麦品种的生理防治效果
在大棚试验中,大麦品种感染番茄红霉后,其株高、叶片数、穗数和穗粒数均显著降低,而生物防治药剂普鲁兰短毛霉处理后,其株高、叶片数、穗数和穗粒数均显著高于未处理的品种。此外,生物防治A。普鲁兰到R。在生物防治a的处理下,茄尼对植株的营养生长有显著的促进作用。普鲁兰株高率最高的品种为阿斯瓦德(Aswad)二行品种,达到38.81cm。在第二次读数中,从16.52厘米上升。在第一次阅读中。热白6行单独处理的株高最低,为22.08 cm。在第二次阅读中,它比第一次阅读增加了。ebaa265白6行品种在加防菌处理中产量最高,达到8.66片/株。在白二行品种中,单独处理的叶片率最低,为6.6片。两行品种Aswad单作生物防治时,大麦穗数最高,一、二、三次读数均达5穗。在这三个读数中,萨米尔白品种在单独使用枯枯菌处理时没有出现峰值。在穗平均粒数方面,阿斯瓦德二行品种以福尔马林消毒土壤(对照)处理最高,第二次达7.67粒,高于四次的7.2粒。在ebaa265白6行中,在茄蚜中添加生物防治普鲁兰,从第一期的4.6粒增加到第二期的9.8粒。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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