Beyaz Ramazan, MacAdam Jennifer W
Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Kırşehir Ahi Evran University, Kırşehir, Türkiye.
Department of Plants, Soils and Climate, Utah State University, Logan, UT, USA.
Int J Radiat Biol. 2023;99(11):1794-1799. doi: 10.1080/09553002.2023.2204961. Epub 2023 May 1.
L. (bird's foot trefoil, BFT) is a valuable perennial legume forage species due to its high nutritive value, persistence under grazing, and condensed tannin content that improves ruminant production and prevents bloating. However, it is less preferred by farmers compared with other perennial forage legumes such as alfalfa because of slow germination, slow establishment and low seedling vigor. This study was conducted to determine whether X-ray seed priming could improve these deficiencies.
Seeds of cv. 'AC Langille' were irradiated at 0, 100, and 300 Gy. Non-irradiated and irradiated seeds were sown on Murashige and Skoog/Gamborg medium under in vitro conditions and cultured for 21 days. Germination percentage, mean germination time (MGT), germination rate index, length of shoot and root, fresh and dry weight of shoot and root, dry matter ratios of shoot and root, water content of shoot and root, and seedling vigor index were measured.
The results of this study demonstrated that X-ray seed priming significantly increased the germination percentage of , increased the germination rate and thereby shortened the MGT, and improved seedling growth. However, X-ray pretreatment also decreased seedling shoot and root biomass.
In this study, it is reported for the first time that X-ray seed pretreatment has the potential to address important seedling establishment issues in .
鸟足豆（BFT）是一种有价值的多年生豆科牧草，因其营养价值高、耐放牧且含有缩合单宁，可提高反刍动物产量并防止胀气。然而，与苜蓿等其他多年生豆科牧草相比，由于其发芽慢、建植慢和幼苗活力低，农民对其青睐程度较低。本研究旨在确定X射线种子引发是否能改善这些不足之处。
对‘AC Langille’品种的种子进行0、100和300 Gy的辐照。将未辐照和辐照后的种子在体外条件下播种于Murashige和Skoog/Gamborg培养基上，培养21天。测定发芽率、平均发芽时间（MGT）、发芽速率指数、地上部和根部长度、地上部和根部鲜重与干重、地上部和根部干物质比率、地上部和根部含水量以及幼苗活力指数。
本研究结果表明，X射线种子引发显著提高了鸟足豆的发芽率，提高了发芽速率，从而缩短了平均发芽时间，并改善了幼苗生长。然而，X射线预处理也降低了幼苗地上部和根部生物量。
本研究首次报道X射线种子预处理有潜力解决鸟足豆重要的幼苗建植问题。
