Allelopathic effect of two invasive weeds on growth performance of Sorghum vulgare Pers

Abstract

The present study reveals allelopathic potential of aqueous leaf extracts of two invasive weeds Euphorbia hirta L. and Parthenium hysterophorus L. on seed germination, growth performance and protein content of jowar (Sorghum vulgare Pers.) seedlings. Laboratory experiments were conducted to check the allelopathic potential of aqueous extract of selected weeds on germination and seedling growth of jowar. Enfluence of aqueous extrats (25, 50, 75 and 100 % concentrations) of two weed plants were studied on seed germination, growth performance, biomass and protein content of jowar seedlings. The observations of experiments revealed a significant stimulatory allelopathic potential of both the weeds on root and shoot growth. Similar results were obtained in case of performed bioassays. Among all concentrations, 25 % concentration of both the weed extracts shows maximum stimulation in biomass and protein content in jowar seedlings.

Allelopathic Effect of Parthenium hysterophorus (L.) on the Seed Germination and Seedling Growth of Sorghum Seeds

“…The Jowar seeds maximum root and shoot length was observed in 25% concentration of Parthenium leaf extracts, i.e 5.23 cm and 9.25 cm, respectively, whereas in control root and shoot length Ghodake et al (2012) reported that allelopathic effect of three Euphorbia species on seed germination and seedling growth of wheat. These observations are in agreement with the findings of earlier workers Mali et al (2021), who reported that the effect of P.hysterophorous L. root growth of Jowar indicted stimulatory effects with respect to concerned concentration of extracts while in case of shoot growth, 50% and 100 % concentrations lower plumule.…”

“…Similar to these results Jondhale and Chavan (2021) recorded fresh weight of seedling, which varied from 1.6 to 2.7 g and 1.3 to 2.7g in different concentrations of C.dactylon and P. hysterophorous, respectively as compared to 2.7g in the control. These results are in conformity with the findings of Mali, et al (2021), who observed that higher concentrations of leaf extract of P.hysterophorus reduced seed germination and seedling growth and weight in sorghum. The observations recorded in the present investigation are in conformity with the findings of Mali and Kanade (2014) who found that the aqueous leaf extracts of A. sessilis, (L.) R.Br and C. dactylon (L.) Pers.…”

“…In the present study observations revealed that leaf extracts of Parthenium plant slightly stimulating significantly affects on seed germination and growth in four different concentrations (25%, 50%, 75% and 100%) as compared to control. Similar to these results Mali et al (2021) observed that significant stimulation in the germination rate and seedling growth with response to specific concentrations. All positive and negative results of Parthenium leaf extracts for seed germination and seedling growth of Jowar are summarized in Table 1, 2 and 3.…”

“…Similar results were also obtained by (Hanan and El-Ghit 2016), who observed that significant stimulation in the germination percentage of pea by treatment of different aqueous extracts of concentrations of cucumber and carrot. These results showed that leaf extract of Parthenium significant promoting effect on seed germination of Jowar than the control as reported by Mali et al (2021). The present study revealed that increase in the concentration of Parthenium plant extracts inhibited the germination of Jowar.…”

Allelochemicals extract of star fruit (Averrhoa carambola L.) modulates wheat growth through alterations in anatomical architecture

“…The stimulatory or inhibitory effects of allelopathic chemicals depend on the concentration and composition of the released compounds in the environment (AL-Jobori and Ali 2014). Allelochemicals with harmful allelopathic properties are a vital component of plant resistance against herbivory (Mali et al 2021). Allelopathy has also been effective in controlling stored grain and field crops from pests and several pathogens.…”