Studying the variation among clones of Dalbergia sissoo Roxb. for growth, stem quality and physiological traits.

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dc.contributor.advisorDhillon, G.P.S.
dc.contributor.authorRavi Inder Singh
dc.date.accessioned2022-11-21T07:31:27Z
dc.date.available2022-11-21T07:31:27Z
dc.date.issued2022
dc.description.abstractIn the present study, eight clones of shisham (Dalbergia sissoo Roxb.) were evaluated on the basis of growth traits, adaptability and stem quality parameters mainly clear bole height and stem straightness under field conditions at the age of 54 months. Significant variation was observed among clones for all the growth and stem quality traits. Mean tree height varied from 7.50 to 10.86 m in which clone PS-52 exhibited maximum tree height. Mean DBH was in the range of 9.62-12.33 cm with clone PS-54 having the highest DBH. Clone PS-54 recorded maximum volume index (0.159 m3/tree). Highest clear bole height was recorded by clone PS-20 (4.01 m) and was at par with clones PS-90 and PS-52. Straightness score varied from 2.58-3.83 and clones PS-20, PS-52 and PS-54 were superior ones. Clone PS-52 witnessed highest survival percentage of 97.60%. Pathological infestation ranged from 1.33 to 2.67 and clone PAU-2 was the superior most. Clones PAU-2 and PAU-5 were showing the least symptoms for insect-pest attack. All the clones were similar in the phenological observations. In biochemical estimation of leaves, significant variation among the clones was observed for chlorophyll a, chlorophyll b, total chlorophyll, total soluble sugars, total soluble proteins, starch and reducing sugars content. Variability estimates were quite high for disease incidence, straightness and clear bole height. The heritability and predicted genetic gain was high for stem quality traits and medium for growth traits. Clones PS-52 and PS-20 were adjudged promising based on the index score given for the studied morphological traits.en_US
dc.identifier.citationRavi Inder Singh (2022). Studying the variation among clones of Dalbergia sissoo Roxb. for growth, stem quality and physiological trait (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.sen_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810189976
dc.keywordsDalbergia sissoo, straightness score, clear bole height, morphology, physiology, variation.en_US
dc.language.isoEnglishen_US
dc.pages53en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemStudying the variation among clones of Dalbergia sissoo Roxb. for growth, stem quality and physiological traits.en_US
dc.subForestryen_US
dc.themeStudying the variation among clones of Dalbergia sissoo Roxb. for growth, stem quality and physiological traits.en_US
dc.these.typeM.Scen_US
dc.titleStudying the variation among clones of Dalbergia sissoo Roxb. for growth, stem quality and physiological traits.en_US
dc.typeThesisen_US
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