Effect of Different Levels of Salinity and Anti-Transpiration on the Growth Characteristics and Chemical Composition of Panicum maximum (Jacq.)

A. El Wardany, Nasr Elbordiny, R. Abdrabou, A. Bakr, Yasser Abdelkareem
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Abstract

Anti-transpiration, Panicum maximum, Guinea grass, Salinity, Molasses, kaolin Abstract: This study aimed to determine the effect of different salinity and anti-transpiration levels on the growth and biochemical composition of Panicum maximum plants (Guinea grass) during spring and summer in 2020. Two different anti-transpiration treatments [molasses (sugarcane) (5 mL/L), kaolin (50 g/L), with control] and three salinity levels (S1 well water as the control and salinity S2 2000 ppm; S3 4000 ppm, S4 6000 ppm] were used in 12 treatments in 72 pots [3 anti-transpiration treatments × 4 salinity treatments × 6 replicates]; a randomized complete design was used. Results revealed that the plants achieved the highest plant height (123.77 cm) and dry weight (521.87 g/m) with kaolin and no salt addition treatment during summer. Higher percentage of proteins and carbohydrates were found in spring than in summer; but there was no significant difference among the salinity levels. A high percentage of ash and fiber contents was also observed during summer, with no significant differences between the anti-transpiration treatments. It could be concluded that P. maximum, as one of the most important fodder crops, could be cultivated in marginal lands, especially during summer season.
不同盐度和防汗水平对大穗(Panicum maximum,Jacq.)生长特性和化学成分的影响
摘要:本试验旨在研究2020年春夏不同盐度和不同抗蒸腾水平对天竺葵(Panicum maximum)植株生长和生化组成的影响。两种不同的抗蒸腾处理[糖蜜(甘蔗)(5 mL/L),高岭土(50 g/L),对照]和三个盐度水平(S1井水为对照,盐度S2 2000 ppm;72盆,12个处理,分别使用S3 4000 ppm、S4 6000 ppm[3个防蒸腾处理× 4个盐度处理× 6个重复];采用随机完全设计。结果表明,夏季未加盐的高岭土处理植株最高,株高为123.77 cm,干重为521.87 g/m;蛋白质和碳水化合物含量春季高于夏季;但不同盐度间无显著差异。夏季抗蒸腾处理间灰分和纤维含量无显著差异,但灰分和纤维含量均较高。综上所述,作为一种重要的饲料作物,大叶茅可以在边缘土地上种植,尤其是在夏季。
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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