Crossing latitude introduction delayed flowering and facilitated dry matter accumulation of soybean as a forage crop

IF 4.6 1区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY Journal of Integrative Agriculture Pub Date : 2024-03-07 DOI:10.1016/j.jia.2024.03.033
Dong An, Xingfa Lai, Tianfu Han, Jean Marie Vianney Nsigayehe, Guixin Li, Yuying Shen
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Abstract

Grain soybean [ (L.) Merr] shows potential as a forage crop following introduction from low to high due to the growth phenotype alteration. However, the application of this approach is impeded by the diverse ecological types of soybeans, their adaptability to the introduction, and the uncertainty surrounding the growth phenotype post-introduction. In this study, 24 grain soybean varieties from low-latitude regions (22-31°N) were introduced to the high-latitude northwestern Loess Plateau (39°N) between 2018 and 2019. The growth phenotypes were observed, and their forage productivity potential was assessed. All varieties displayed delayed flowering following cross-latitude introduction, with the vegetative growth phase of some varieties even exceeding their entire growth duration at their origin. Rapid dry matter accumulation rates were indicative of growth adaptation performance and formed the basis for soybean forage yield. Varieties from the tropical south China region exhibited significant yield advantages, with dry matter yields of 8.97-14.68 t ha and crude protein yields of 1.44-2.51 t ha. Varieties HX3 and GX7, originating from this region, demonstrated optimal growth adaptability and productivity in the cross-latitude environment, achieving the highest dry matter yields of 14.68 and 13.86 t ha, respectively. As a result, HX3 and GX7 are recommended for local farming systems to provide high-quality forage. The cross-latitude introduction of soybean is proposed as a viable and efficient strategy for forage improvement and application.
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跨纬度引入延迟了大豆作为饲料作物的开花期,并促进了其干物质的积累
由于生长表型的改变,谷物大豆[(L. )Merr]在从低到高的引入后显示出作为饲料作物的潜力。然而,大豆生态类型的多样性、对引种的适应性以及引种后生长表型的不确定性阻碍了这一方法的应用。在本研究中,2018 年至 2019 年期间,24 个来自低纬度地区(22-31°N)的谷物大豆品种被引入高纬度西北黄土高原(39°N)。对其生长表型进行了观察,并评估了其饲料生产潜力。所有品种在跨纬度引种后都表现出延迟开花,一些品种的无性生长期甚至超过了它们在原产地的整个生长期。快速的干物质积累率是生长适应性表现的标志,也是大豆饲草产量的基础。华南热带地区的品种表现出显著的产量优势,干物质产量为 8.97-14.68 吨/公顷,粗蛋白产量为 1.44-2.51 吨/公顷。来自该地区的品种 HX3 和 GX7 在跨纬度环境中表现出最佳的生长适应性和生产力,干物质产量最高,分别达到 14.68 吨/公顷和 13.86 吨/公顷。因此,HX3 和 GX7 被推荐用于当地农业系统,以提供优质饲草。跨纬度引种大豆是一种可行且高效的饲草改良和应用策略。
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来源期刊
Journal of Integrative Agriculture
Journal of Integrative Agriculture AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
7.90
自引率
4.20%
发文量
4817
审稿时长
3-6 weeks
期刊介绍: Journal of Integrative Agriculture publishes manuscripts in the categories of Commentary, Review, Research Article, Letter and Short Communication, focusing on the core subjects: Crop Genetics & Breeding, Germplasm Resources, Physiology, Biochemistry, Cultivation, Tillage, Plant Protection, Animal Science, Veterinary Science, Soil and Fertilization, Irrigation, Plant Nutrition, Agro-Environment & Ecology, Bio-material and Bio-energy, Food Science, Agricultural Economics and Management, Agricultural Information Science.
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