Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa)
The production and productivity of paddy (Oryza sativa L.) has been reported to be severely affected by an emerging disease called seed discolouration. It is a complex disease because several pathogenic fungi infect rice grains in the field. The infection reduces the seed quality by producing harmf...
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| Format: | Article |
| Language: | English |
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Indian Council of Agricultural Research
2022-03-01
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| Series: | The Indian Journal of Agricultural Sciences |
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| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/113176 |
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| author | PRAVEEN S PATTED ATUL KUMAR SANDEEP KUMAR LAL SHYAMAL K CHAKRABARTY NAGAMANI SANDRA BISHNU MAYA RANJIT RANJAN KUMAR PROLAY KUMAR BHAUMICK RAJIV KUMAR SINGH |
| author_facet | PRAVEEN S PATTED ATUL KUMAR SANDEEP KUMAR LAL SHYAMAL K CHAKRABARTY NAGAMANI SANDRA BISHNU MAYA RANJIT RANJAN KUMAR PROLAY KUMAR BHAUMICK RAJIV KUMAR SINGH |
| author_sort | PRAVEEN S PATTED |
| collection | DOAJ |
| description |
The production and productivity of paddy (Oryza sativa L.) has been reported to be severely affected by an
emerging disease called seed discolouration. It is a complex disease because several pathogenic fungi infect rice grains in the field. The infection reduces the seed quality by producing harmful mycotoxins that are hazardous to humans and animals. The current study was carried out from 2016–19 at IARI, New Delhi to determine the effect of seed discolouration on seed quality parameters in terms of physio-chemical changes. The findings revealed a significant loss in the seed quality of paddy in popular rice varieties. We observed a significant reduction in the germination percentage (9–42%), seedling length (3.4–33.3%), seedling dry weight (2.7–36.5%), and seedling vigour index I (20.1–52.5%) and II (12.3–53.7%), whereas an increase in electrical conductivity (EC) (18.7–38.9%) were observed in discoloured seeds compared to healthy seeds. Similarly, the significant decrease in starch (5.3–37.6%) and protein (1.6–46.2%) content was recorded, whereas, an increase in total antioxidant (3.3–37.1%) and total phenol content (0.58–26.03%) was seen in discoloured seeds, as compared to healthy seeds. The results show that the seed quality is highly compromised in discoloured seeds, as compared to healthy seeds and need to be addressed through the development of different management practices.
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| first_indexed | 2024-04-10T16:38:28Z |
| format | Article |
| id | doaj.art-fc326b2fb4584138aadd5995024a2be7 |
| institution | Directory Open Access Journal |
| issn | 0019-5022 2394-3319 |
| language | English |
| last_indexed | 2024-04-10T16:38:28Z |
| publishDate | 2022-03-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-fc326b2fb4584138aadd5995024a2be72023-02-08T11:12:53ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192022-03-0192610.56093/ijas.v92i6.113176Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa)PRAVEEN S PATTED0ATUL KUMAR1SANDEEP KUMAR LAL2SHYAMAL K CHAKRABARTY3NAGAMANI SANDRA4BISHNU MAYA5RANJIT RANJAN KUMAR6PROLAY KUMAR BHAUMICK7RAJIV KUMAR SINGH8PhD StudentPrincipal ScientistPrincipal ScientistPrincipal Scientist and HeadScientistSenior ScientistSenior ScientistSenior ScientistPrincipal Scientist The production and productivity of paddy (Oryza sativa L.) has been reported to be severely affected by an emerging disease called seed discolouration. It is a complex disease because several pathogenic fungi infect rice grains in the field. The infection reduces the seed quality by producing harmful mycotoxins that are hazardous to humans and animals. The current study was carried out from 2016–19 at IARI, New Delhi to determine the effect of seed discolouration on seed quality parameters in terms of physio-chemical changes. The findings revealed a significant loss in the seed quality of paddy in popular rice varieties. We observed a significant reduction in the germination percentage (9–42%), seedling length (3.4–33.3%), seedling dry weight (2.7–36.5%), and seedling vigour index I (20.1–52.5%) and II (12.3–53.7%), whereas an increase in electrical conductivity (EC) (18.7–38.9%) were observed in discoloured seeds compared to healthy seeds. Similarly, the significant decrease in starch (5.3–37.6%) and protein (1.6–46.2%) content was recorded, whereas, an increase in total antioxidant (3.3–37.1%) and total phenol content (0.58–26.03%) was seen in discoloured seeds, as compared to healthy seeds. The results show that the seed quality is highly compromised in discoloured seeds, as compared to healthy seeds and need to be addressed through the development of different management practices. https://epubs.icar.org.in/index.php/IJAgS/article/view/113176Seed discolourationPaddySeed quality parametersBiochemical parameters |
| spellingShingle | PRAVEEN S PATTED ATUL KUMAR SANDEEP KUMAR LAL SHYAMAL K CHAKRABARTY NAGAMANI SANDRA BISHNU MAYA RANJIT RANJAN KUMAR PROLAY KUMAR BHAUMICK RAJIV KUMAR SINGH Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa) The Indian Journal of Agricultural Sciences Seed discolouration Paddy Seed quality parameters Biochemical parameters |
| title | Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa) |
| title_full | Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa) |
| title_fullStr | Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa) |
| title_full_unstemmed | Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa) |
| title_short | Effect of seed discolouration (a complex disease) on seed quality parameters in paddy (Oryza sativa) |
| title_sort | effect of seed discolouration a complex disease on seed quality parameters in paddy oryza sativa |
| topic | Seed discolouration Paddy Seed quality parameters Biochemical parameters |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/113176 |
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