Effect of Different Doses of Jatropha Leaf Extract on Growth and Development of French Bean (Phaseolus vulgaris L.) and Brinjal (Solanum melongena)

Chack, Sonbeer; Das, Kaushik; Kalita, Prakash; Bhoutekar, Savita; Lal, Narayan

doi:10.20546/ijcmas.2017.605.302

Cited by 1 publication

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“…For example, Nitesh and Ambika (2016) reported a was significant reduction in chlorophyll contents of wheat at high concentrations of the weed extracts. Sypek et al (2015) stated that increasing concentrations of aqueous extracts of peppermint caused a decrease of chlorophyll a and an increase of chlorophyll b content of Helianthus annuus L. According to Sonbeer et al (2017), relative leaf water content, total leaf chlorophyll content and leaf N P K content of French bean were reduced by the aqueous extract of Jatropha. The chlorophyll content of the A. pedunculata leaves decreased with an increase in the aqueous leaf extracts concentration of the four shrubs (Wang et al, 2018) Yang et al (2002 was of the opinion that allelochemicals may reduce chlorophyll accumulation in three ways namely: the inhibition of chlorophyll biosynthesis; the stimulation of chlorophyll degradation or both.…”

Section: Discussionmentioning

confidence: 99%

Phytotoxic Effect of Tithonia rotundifolia (Miller) S.F.Blake on Chlorophyll and Protein Contents of Vigna unguiculata L. and Zea mays L.

John¹,

Otusanya²

2019

JBLS

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A large number of plants impose inhibitory effects on the germination and growth of neighbouring or successional plants by releasing allelochemicals into the soil. This study investigated the phytotoxic effects of Tithonia rotundifolia (Miller) S.F.Blake on the chlorophyll and protein contents of Vigna unguiculata (L.) Walpers and Zea mays L.. This was with a view to determining the susceptibility of these crops to allelochemicals in the extracts prepared from T. rotundifolia. Seeds of the test plants were sown in pots filled with top humus soil. At two weeks, seedlings in each pot were thinned down to 10 seedlings per pot. Potted plants of the test crops were supplied with 400 ml of the appropriate water extracts while the control potted plants were supplied with 400 ml of water. Biochemical analyses were carried out according to standard methods. The data obtained were analysed by (ANOVA) to determine significant (P< 0.05) effects. The means were compared using Duncan Multiple Range Test. The chlorophyll a, chlorophyll b, total chlorophyll and protein contents in V. unguiculata and Z. mays and were significantly inhibited by the extract from T. rotundifolia. The inhibitory effects of these allelochemicals increased with concentration. The phytotoxic effect of T. rotundifolia was species dependent. It was concluded that the extract contains water-soluble allelochemicals which inhibited the biochemical parameters of the test crops. T. rotundifolia should be controlled where it grows in association with cultivated crops.

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Section: Discussionmentioning

confidence: 99%