Screening of Pea (Pisumsativum L.) Genotypes and Ameliorative Effect of Nutrient and Salicylic Acid against Aluminium Toxicity

Simple item page
dc.contributor.advisorSarma, Pranabjyoti
dc.contributor.authorAnsari, Md. Talha
dc.contributor.otherMailappa, A. S.
dc.date.accessioned2021-03-03T10:00:14Z
dc.date.available2021-03-03T10:00:14Z
dc.date.issued2021-02-13
dc.descriptionPea being a leguminous crop rich in protein source in the diet of millions of people.However, it suffers from variouskinds of abiotic stress, of which aluminium (Al) toxicity is one of the major problems in acidic soil. Therefore, the present investigation was carried out under laboratory and polyhouse conditions at College of Horticulture and Forestry, CAU, Pasighat, Arunachal Pradesh during 2018-2019 and 2019-2020. Twenty five pea genotypes werescreened for Al tolerance and the effect of Al on soil characters with respect to the response of pea genotypes were studied. Studieson the enzymatic and non-enzymatic anti oxidative defense system and ameliorative effect of Ca, Mg, P and salicylic acid were also evaluated on pea genotypes.en_US
dc.description.abstractThe screening wascarried out undertwo conditions, control laboratory environment andnaturally ventilated polyhouse maintaining 25 pea genotypes at 3 levels of Al (control, 12 ppm and 24 ppm). Different genotypes of pea plants were grown in pots filled with aluminium treated soil. In polyhouse, screening was carried out using growth characters, root tolerance index and yield parameters. Under laboratorycondition, genotypes were grown in tray filled with inert sand and the treatment was given through Hoagland media. Screening was performed using growth characters, root tolerance index andhaematoxylin staining. K-mean clustering was carried out to categorize genotypes into tolerant, intermediate and susceptible. After evaluation, amongst the 25 genotypes, Kashi Samrath and Kashi Samridhi revealed astolerant and Matar Ageta-7, Pb-89, AP 3, and CHFGP-16 as susceptible.Four representative genotypes, Kashi Samrath and Kashi Samridhi as tolerant and Matar Ageta-7 and AP-3 as susceptible were used for studying the enzymatic and non-enzymatic anti-oxidative defense mechanism against Al tolerance and also influence of Al on soil properties. The Al treatment had significant influenceon soil properties. Drastic decrease in the pH and availability of NPK was observed that induced significant negative effect on overall plant growth. The influence of Al was depicted among the sensitive pea genotypes (Matar Ageta-7 and AP-3) by producing significant reduction in plant growth and yield. Despite deterioration of soil properties, there was no significant effect on growth and yield of tolerant genotype viz.Kashi Samrath and Kashi Samridhi. The mechanism of Al tolerance of pea genotypes revealed less accumulation of Al, low reactive oxygen species (ROS) production, high Mg uptake, accumulation of proline and catalase in roots exhibiting healthy growth performance. The finding suggested enhancement of enzymatic and non-enzymatic anti-oxidative capacity and balanced nutrient uptake in pea genotypes that in turn lead to the tolerance against Al toxicity. The Ca, P, Mg and salicylic acid in the growth medium of pea seedlings enhance the combating effects against Al induced oxidative damage serving as the potential ameliorating agents to overcome Al toxicity in for the healthy growth of pea. Among all the treatments, the application of the 0.5 mM P under Al stress appeared a potential tool in restoring the growth and physiological activities in sensitive pea genotype (AP 3) indicating the best ameliorating agent.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810161911
dc.keywordsAluminium tolerance mechanism, Salicylic acid, ROSen_US
dc.language.isoEnglishen_US
dc.pagesxvii+180en_US
dc.publisherCollege of Horticulture and Forestry, Central Agricultural University, Pasighaten_US
dc.research.problemTo screen pea genotypes against aluminium toxicity in sand and soil condition 2) To study the effect of Al for soil characters in pea 3) To examine the effect of Al on enzymatic and non-enzymatic anti-oxidative defence system in pea 4) To study the ameliorative effect of Ca, Mg, P and salicylic acid in pea against Al toxicityen_US
dc.subVegetable Scienceen_US
dc.themeGenotypes and Ameliorative Effect of Nutrient and Salicylic Acid against Aluminium Toxicityen_US
dc.these.typePh.Den_US
dc.titleScreening of Pea (Pisumsativum L.) Genotypes and Ameliorative Effect of Nutrient and Salicylic Acid against Aluminium Toxicityen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Md. Talha Ansari Ph.D. Thesis 2021 library.pdf
Size:
8.34 MB
Format:
Adobe Portable Document Format
Description:
Md. Talha Ansari Ph.D. thesis 2021
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Thesis