Chlorophyll content in pepper leaves under the influence of meliorative measures

Abstract

Smanjenje plodnosti poljoprivrednog zemljišta, uz konstantan pad sadržaja organske materije i nepovoljne fizičko-hemijske osobine, predstavlja ozbiljan izazov za održivu biljnu proizvodnju. Visoke temperature, loš raspored i male količine padavina dodatno utiču na pojavu stresa kod biljaka, što se odražava na fiziološke procese, uključujući sadržaj hlorofila u listovima. U skladu sa prioritetima Evropskog zelenog plana, istraživanje se fokusira na proučavanje načina đubrenja i meliorativnih mera za poboljšanje plodnosti zemljišta i produktivnosti paprike (Capsicum annuum L.). Cilj istraživanja bio je ispitivanje uticaja meliorativnih mera popravke zemljišta na sadržaj hlorofila u listovima paprike sorte Dora u uslovima visokih temperatura. Novina rada ogleda se u kombinovanoj upotrebi organskih đubriva i zeolita na slabo humusnom zemljištu, uz procenu njihovog uticaja na fiziološke parametre biljaka u uslovima klimatskog stresa. Rezultati pokazuju da kombinacija meliorativnih mera i folijarne ishrane kalcijumom značajno povećava sadržaj hlorofila i humusa u zemljištu, doprinoseći ublažavanju posledica visokih temperatura i suše.The decline in agricultural soil fertility, accompanied by decreasing organic matter content and poor physical and chemical properties, poses a challenge to sustainable plant production. High temperatures and insufficient rainfall additionally contribute to plant stress, reflected in physiological processes such as chlorophyll content. In line with the European Green Deal priorities, this study focuses on fertilisation and soil amelioration measures to improve soil fertility and pepper productivity (Capsicum annuum L.). The aim was to assess the effect of ameliorative measures on chlorophyll content in the leaves of the Dora pepper variety under high temperatures. The novelty lies in combining organic fertilisers and zeolite on low-humus soil and assessing their effect on plant physiological parameters under climate-induced stress. Results show that combining ameliorative measures with foliar calcium treatment significantly increases leaf chlorophyll and soil humus content, helping plants tolerate high temperatures and drought

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