Effect Of Chitosan Application On The Performance Of Lentil Genotypes Under Rainfed Conditions

Abstract

In the current study, influences of chitosan solutions on morphological characteristics, growth and yield components of lentil (Lens culinaris Med.) under rainfed conditions have been investigated. A field experiment was conducted in the Northwest of Iran using a split-plot experiment based on a completely randomized design with three replications. The response of twelve genotypes with different origins to chitosan application at the sowing (seed soaking), vegetative and reproductive stage (spraying chitosan onto leaves) was evaluated. Results revealed that chitosan application could significantly improve the number of pods per plant, 100-seed weight, grain yield per plant and harvest index in comparison to control plants. The comparison of yield components between chitosan treatments showed that spraying chitosan during the reproductive stage was more efficient than in other stages. However, the responses of the number of pods per plants and grain yield per plants to chitosan treatments were significantly different among the genotypes. Although the highest grain yield was recorded in the 78S 26013 genotype (from Jordan), its response to chitosan treatments was different from the other genotypes and showed the best performance in plants obtained from seed soaked in chitosan solutions. We suggest that the application of chitosan as an agronomic management strategy be further investigated for an efficient technique to induce resistance in lentil plants against biotic and drought stress in semi-arid regions.

Study the Effect of Mycorrizal Fungi¸Chitosan and Cycocel on Agronomic Characteristics of Rainfed Chickpea

“…They found that the positive effects of chitosan alone, were scant on growth, yield and yield component. Janmohammadi et al (2014) concluded that chitosan could alleviate the adverse effect of unfavorable condition, such as terminal drought that takes place at the Mondal et al (2013) concluded that the maximum yield obtained by chitosan at 50 ppm was due to increased production of pods per plant as 25-27%. However, all yield attributes lowered down at 100 ppm chitosan indicating its toxic effect at higher concentration.…”

“…Under semi-arid condition of Iran, where the farmers have reached 53% of chickpea (Cicer arietinum L.) potential yield (Soltani et al 2016), alleviating or compensating the adverse and negative effect of drought stress that takes place on the reproductive growth stage of rainfed legume, is very important (Janmohammadi et al 2014). In order to improve drought resistance and enhance water use efficiency of plant, closure or reduce the size of stomata openings introduced by Zeng and Luo (2012).…”

“…In order to improve drought resistance and enhance water use efficiency of plant, closure or reduce the size of stomata openings introduced by Zeng and Luo (2012). Among different anti-transpiration compounds, Chitosan is biodegradable and sub-product of the marine industry that introduced as a plant growth bio-stimulant and lowering agent of drought effect (Janmohammadi et al 2014). The antitranspirant effect of chitosan and consequently decreasing water needed for plant reported by some researchers.…”

Effectiveness of Cymbopogon citratus Oil Encapsulated in Chitosan on Colletotrichum gloeosporioides Isolated from Capsicum annuum

“…In addition, Mishra and Dubey [ 21 ] found Cymbopogon oil to be more effective than carbendozim in pathogen control under in vitro conditions. Another study reported the application of chitosan as a crop management strategy to efficiently induce biotic and drought stress resistance in lentil plants in semi-arid regions [ 22 ]. On the other hand, the healthiness of bean plants grown in soil treated with chitosan and an increased quantity of microorganism colonies was significantly better compared to the control.…”

“…The populations of antagonistic microorganisms formed in the soil in these treatments may have limited the growth of pathogenic fungus [ 23 ]. The results of ecological studies and an increase in yield involving EO and chitosan suggested that these molecules provide health benefits to the soil [ 22 , 23 ]. The chitosan used in this study did not show antifungal activity, which differed from the results obtained by Younes and Rinaudo [ 10 ], who used chitosan to control fungi in several food categories.…”