Impact of Seed Deterioration on Seedling Vigour in Mango
By: Anila P.
Contributor(s): Girija T (Guide).
Material type:
BookPublisher: Vellanikkara Department of Plant Breeding and Genetics, College of Horticulture 2002DDC classification: 630.28 Online resources: Click here to access online Dissertation note: MSc Abstract: The present study on 'Impact of seed deterioration on seedling vigour in
mango' was undertaken at the Department of Plant Breeding and Genetics, College
of Horticulture, Vellanikkara during 1999-2001 with the objectives of assessing
the variability of seedling characters obtained fr0111 a single plant, the effect of seed
deterioration on seedling characters and to ascertain the critical moisture content of
the varieties.
Three varieties of mango were selected for the study. Assessment of
variability of seedling characters of these varieties revealed that seedling girth is
the most variable character, variability within varieties and between varieties was
high for this character. Moreover, the response of girth to variation in seed weight
due to loss in moisture content of the seed was also high indicating that this
character may be influenced by both genetic factor as well as the physiological
condition of the seed.
The critical, moisture content was estimated to be 24% for
Chandrakkaran, 30% for Moovandan and 28% for Puliyan.
Seedling characters like height, girth, internodal length, number of
leaves etc. were studied. These characters were found to be highly depended upon
the moisture content of seed. There was considerable reduction in these characters
with loss of moisture from seed. Polyembryonic nature of these varieties were not
affected by seed desiccation.
Biochemical characters like chlorophyll content, phenol content and
sugar content were found to decrease with seed desiccation. Electrolyte leakage
was found to be high with seed desiccation leading to reduction in viability.
Seedling vigour was found to be positively correlated with biochemical characters.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 630.28 ANI/IM (Browse shelf) | Available | 172001 |
MSc
The present study on 'Impact of seed deterioration on seedling vigour in
mango' was undertaken at the Department of Plant Breeding and Genetics, College
of Horticulture, Vellanikkara during 1999-2001 with the objectives of assessing
the variability of seedling characters obtained fr0111 a single plant, the effect of seed
deterioration on seedling characters and to ascertain the critical moisture content of
the varieties.
Three varieties of mango were selected for the study. Assessment of
variability of seedling characters of these varieties revealed that seedling girth is
the most variable character, variability within varieties and between varieties was
high for this character. Moreover, the response of girth to variation in seed weight
due to loss in moisture content of the seed was also high indicating that this
character may be influenced by both genetic factor as well as the physiological
condition of the seed.
The critical, moisture content was estimated to be 24% for
Chandrakkaran, 30% for Moovandan and 28% for Puliyan.
Seedling characters like height, girth, internodal length, number of
leaves etc. were studied. These characters were found to be highly depended upon
the moisture content of seed. There was considerable reduction in these characters
with loss of moisture from seed. Polyembryonic nature of these varieties were not
affected by seed desiccation.
Biochemical characters like chlorophyll content, phenol content and
sugar content were found to decrease with seed desiccation. Electrolyte leakage
was found to be high with seed desiccation leading to reduction in viability.
Seedling vigour was found to be positively correlated with biochemical characters.
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