Jali Pallavi, Samal Ipsita Priyadarsini, Jena Sameer, Mahalik Gyanranjan
Department of Botany, Utkal University, Bhubaneswar, India.
Department of Botany, School of Applied Sciences, Centurion University of Technology and Management, Odisha, India.
Heliyon. 2021 Aug 17;7(8):e07822. doi: 10.1016/j.heliyon.2021.e07822. eCollection 2021 Aug.
Yield loss due to noxious weeds is one among several reasons for the reduced economy for the developing countries. Impacts of one such weed i.e. were investigated on the rate of seed germination, growth, biomass, photosynthetic pigments, total soluble protein, phenolics and proline content of leaves of (an important pulse). In a completely randomized setup, control and four concentrations (10 mg/ml, 50 mg/ml, 100 mg/ml and 200 mg/ml) of the aqueous leaf extracts of were tested on the seeds of . The extracts inhibited germination, growth, biomass, chlorophyll, carotenoid and protein contents. The protein content of decreased to 8.48 mg/g at 200 mg/ml. Similarly, shoot length and root length were also decreased up to 5.11 cm and 0.85 cm respectively and water content increased with the increasing concentration of weed extracts. The leaf extracts resulted in an increase in the phenolics (19.66 mg) and proline (24.49 mg) content of the crop plant. The preliminary study indicated that the aqueous leaf extracts of weed plant resulted in negative or detrimental impact on growth and physiology of the plant and this might be due to the release of secondary metabolites. The present investigation may further lead to the identification of certain secondary metabolites or allelo-chemicals that may have an important agricultural application for sustainability and may enhance the level of crop protection against several other harmful plant species.
有害杂草导致的产量损失是发展中国家经济衰退的诸多原因之一。研究了一种此类杂草（即[杂草名称未给出]）对[重要豆类名称未给出]种子的发芽率、生长、生物量、光合色素、总可溶性蛋白、酚类和脯氨酸含量的影响。在完全随机的设置中，对[重要豆类名称未给出]的种子测试了对照以及[杂草名称未给出]叶水提取物的四个浓度（10毫克/毫升、50毫克/毫升、100毫克/毫升和200毫克/毫升）。提取物抑制了发芽、生长、生物量、叶绿素、类胡萝卜素和蛋白质含量。在200毫克/毫升时，[重要豆类名称未给出]的蛋白质含量降至8.48毫克/克。同样，茎长和根长也分别减少至5.11厘米和0.85厘米，且含水量随着杂草提取物浓度的增加而增加。叶提取物导致作物植株的酚类（19.66毫克）和脯氨酸（24.49毫克）含量增加。初步研究表明，杂草植物的叶水提取物对植物的生长和生理产生了负面或有害影响，这可能是由于次生代谢产物的释放。本研究可能会进一步促使鉴定某些次生代谢产物或化感物质，这些物质可能在农业可持续性方面具有重要应用，并可能提高作物对其他几种有害植物物种的保护水平。
