EFFECTS OF VARYING TEMPERATURE AND PHOTOPERIOD ON GRAIN YIELD AND QUALITY CHARACTERS IN SOYBEAN [Glycine max (L.) Merrill] GENOTYPES

Simple item page
dc.contributor.advisorB. S., Gill
dc.contributor.authorKuldeep Kaur
dc.date.accessioned2017-06-20T09:53:40Z
dc.date.available2017-06-20T09:53:40Z
dc.date.issued2012
dc.description.abstractThe present investigation on Soybean (Glycine max (L.) Merrill) was carried out to study the effect of environmental conditions (different photoperiod and temperature regimes) on grain yield, nutritional and antinutritional factors as well as genetic variability and the correlations. Seventeen different soybean genotypes were planted at the Pulse Research area of Department of Plant Breeding and Genetics, Punjab Agriculture University, Ludhiana during 2011 under three different planting dates i.e., March 1 (D1), June 5 (D2) and August 7 (D3) to expose seed development stage to varying temperature and photoperiod conditions. Data were recorded on different morphological, agronomic and quality characters. Analysis of variance revealed significant differences for genotypes, environment and genotype x environment interaction except for G x E interaction for oil content indicating diverse nature of genotypes, environments and differential response of genotypes to environments i.e. sowing dates. Maximum number of days to flowering, days to maturity, plant height, 100-seed weight, phytic and oleic acid content were observed for March sowing (D1). Highest grain yield per plant, number of pods per plant, protein content, TIA, tocopherol content, tannin content, phenol content and linolenic acid were recorded for June sowing (D2). Harvest index, sucrose and linoleic acid were observed to be highest in August sowing (D3) whereas oil content, palmitic and stearic acid content were unaffected by sowing dates. High GCV and PCV values were exhibited by grain yield per plant, pods per plant, harvest index, saponin content, tocopherol content and linolenic acid in all the sowings except for harvest index in D2 and linolenic acid in D1sowing. High heritability with high genetic advance as per cent of mean was recorded for plant height, grain yield per plant, harvest index, saponin content, tocopherol content, palmitic acid and linolenic acid. Correlation study revealed the presence of positive association of grain yield with 100-seed weight and harvest index in D1 and D2 and with number of pods in D2 and D3 sowings. Seed weight showed significant and positive correlation with protein content in D1 and with oil content in D2 while no association with either of them in D3. Phenol and tannin contents were significantly and positively associated in D1 only. Significant negative association was noticed for oleic acid with linoleic acid and positive association was noticed for palmitic acid with stearic acid in all the three sowing dates. Oleic acid was negatively correlated with linolenic acid in March and August sowing but no correlation was recorded in June sowing.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810022115
dc.keywordsKeywords: Soybean, Sowing dates, G X E interaction, Genotypic variance and Correlationsen_US
dc.language.isoenen_US
dc.publisherPAU Ludhianaen_US
dc.subPlant Breeding and Genetics
dc.subjectnullen_US
dc.these.typeM.Sc
dc.titleEFFECTS OF VARYING TEMPERATURE AND PHOTOPERIOD ON GRAIN YIELD AND QUALITY CHARACTERS IN SOYBEAN [Glycine max (L.) Merrill] GENOTYPESen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Kuldeep Kaur Final Thesis Cd.pdf
Size:
1.23 MB
Format:
Adobe Portable Document Format
Description:
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