Glycine betaine application improved seed cotton yield and economic returns under deficit irrigation

IF 3.7 3区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Journal of King Saud University - Science Pub Date : 2024-09-08 DOI:10.1016/j.jksus.2024.103445

Emrah Ramazanoglu , Nimet Kılınçoğlu , Vedat Beyyavas , Cevher İlhan Cevheri , Erdal Sakin , Ahmet Çelik

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引用次数: 0

Abstract

Background

Deficit irrigation exerts devastating effects on the productivity and economic returns of cotton crop, as well as carbon dioxide (CO₂) emission from soil. Osmolytes play a significant role in facilitating the adaptation of cotton plants to abiotic stresses and improve productivity.

Methods

This study investigated the effects of different osmolytes (glycine betaine, ascorbic acid, salicylic acid 100 mg L⁻¹ each) and deficit irrigation (50 %-I₅₀, 75 %-I₇₅, and 100 %-I₁₀₀) on seed cotton yield, greenhouse gas emission (CO₂-C), emission factor (EFs) and economic returns of cotton in Southern Anatolia, Türkiye.

Results

Deficit irrigation and osmolyte treatment, both separately and in combination, had a substantial impact on seed cotton yield, CO₂-C emission and EFs. The lowest (3800 kg ha⁻¹) and the highest (4746 kg ha⁻¹) seed cotton yield was noted under I₅₀, and I₁₀₀ treatments, respectively. Similarly, no osmolyte application and application of glycine betaine resulted in the lowest (4097 kg ha⁻¹) and the highest (4545 kg ha⁻¹) seed cotton yield, respectively. The interactive effect indicated that application of glycine betaine and salicylic acid produced better yield than control treatment under all irrigation treatments. The lowest (1.55) and the highest (1.94 mg) CO₂-C emission (mg CO₂-C m⁻² h⁻¹) was recorded for I₅₀, and I₁₀₀ treatments respectively. Likewise, the lowest (1.52) and the highest (2.19) daily carbon emission were recorded for salicylic acid and glycine betaine application, respectively. The lowest and the highest EFs values were observed for glycine betaine and ascorbic acid application, respectively. Application of glycine betaine resulted in the highest economic returns under all irrigation treatments which was comparable to salicylic acid, whereas the lower economic returns were recorded for control treatment.

Conclusion

It is concluded that application of glycine betaine can be used to improve seed cotton yield and economic returns under deficit irrigation. Similarly, glycine betaine proved helpful in reducing CO₂-C emission under deficit irrigation compared to normal irrigation.

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甘氨酸甜菜碱的应用提高了缺水灌溉条件下的籽棉产量和经济收益

背景缺水灌溉对棉花作物的生产力和经济收益以及土壤中二氧化碳（CO2）的排放具有破坏性影响。本研究调查了不同渗透剂（甘氨酸甜菜碱、抗坏血酸、水杨酸各 100 mg L-1）和亏缺灌溉（50 %-I50、75 %-I75、100 %-I100）对土耳其安纳托利亚南部棉花籽棉产量、温室气体排放量（CO2-C）、排放系数（EFs）和经济收益的影响。结果缺水灌溉和渗透剂处理，无论是单独使用还是组合使用，都对籽棉产量、CO2-C 排放量和排放系数产生了重大影响。I50 和 I100 处理的籽棉产量分别最低（3800 千克/公顷-1）和最高（4746 千克/公顷-1）。同样，不施用渗透剂和施用甘氨酸甜菜碱分别导致籽棉产量最低（4097 千克/公顷-1）和最高（4545 千克/公顷-1）。交互效应表明，在所有灌溉处理下，施用甘氨酸甜菜碱和水杨酸的产量均高于对照处理。I50 和 I100 处理的 CO2-C 排放量（毫克 CO2-C m-2 h-1）分别最低（1.55 毫克）和最高（1.94 毫克）。同样，水杨酸和甘氨酸甜菜碱的日碳排放量分别最低（1.52）和最高（2.19）。施用甘氨酸甜菜碱和抗坏血酸的 EFs 值分别最低和最高。在所有灌溉处理中，施用甘氨酸甜菜碱的经济收益最高，与水杨酸相当，而对照处理的经济收益较低。同样，与正常灌溉相比，甘氨酸甜菜碱在亏缺灌溉条件下有助于减少 CO2-C 排放。

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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来源期刊

Journal of King Saud University - Science Multidisciplinary-Multidisciplinary

CiteScore

7.20

自引率

2.60%

发文量

642

审稿时长

49 days

期刊介绍： Journal of King Saud University – Science is an official refereed publication of King Saud University and the publishing services is provided by Elsevier. It publishes peer-reviewed research articles in the fields of physics, astronomy, mathematics, statistics, chemistry, biochemistry, earth sciences, life and environmental sciences on the basis of scientific originality and interdisciplinary interest. It is devoted primarily to research papers but short communications, reviews and book reviews are also included. The editorial board and associated editors, composed of prominent scientists from around the world, are representative of the disciplines covered by the journal.