Selection of different candidate plus trees of Red Cedar ( Toonaciliata ) and their nursery evaluation in Jammu subtropics

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dc.contributor.advisorGupta, L. M.
dc.contributor.authorJavaid, Mohd
dc.date.accessioned2023-04-13T09:23:34Z
dc.date.available2023-04-13T09:23:34Z
dc.date.issued2023-04
dc.description.abstractThe present investigation entitled “Selection of different candidate plus trees of Red cedar (Toona ciliata) and their nursery evaluation in Jammu subtropics”was carried out in the Division of Silviculture & Agroforestry, Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu (J&K) with the objectives to select the Candidate Plus Trees (CPTs) from their natural range of occurrence and screen them on the basis of their field and nursery performance so as to identify superior trees as mother plants for future plantations. Twenty two phenotypically superior candidate plus trees were selected from twenty two different locations across six districts of Jammu and Kashmir (UT) viz. Kathua, Samba, Jammu, Udhampur, Reasi and Rajouri following the baseline method. Tree height, clear bole height, DBH, crown diameter, number of branches and straightness score, ranged between 11.63- 26.13m, 2.18-8.19m, 27.36-43.56cm, 7.34-12.45m, 10-27 and 3-5, respectively among marked CPTs. CPT-4, CPT-5, CPT-6, CPT-14, CPT-16, CPT-17, CPT-18, CPT-19, CPT-20 and CPT-22 exhibited higher values for tree characteristics. Seeds were collected from each plus tree and progenies were raised and evaluated for growth, biomass and seedling quality traits under nursery conditions. Considerable variations were observed in fruit length (16.91-25.59mm), fruit breadth (8.32-11.64mm), fruit weight (158.03-364.93g), seeds per fruit (19.45-28.22), seed length with wings (12.80-20.89mm), seed length without wings (4.98-6.51mm), seed width with wings (3.41-5.29mm), seed width without wings (2.15-3.21mm) and seed weight (0.15-0.36g). Significant variation was also observed among progenies for germination percentage (25.54-96.67%), survival percentage (59.08-87.23%), seedling height (35.22-49.69 cm), collar diameter (6.05-9.94mm), number of leaves (51.29-77.08), number of branches (6.47-10.53), primary root length (17.50-31.98cm), fresh shoot weight (11.74-21.59g), dry shoot weight (4.28-7.66g), fresh root weight (6.21-11.65g), dry root weight (2.06-4.54g), total fresh biomass (18.88-33.24g), total dry biomass (6.83-11.61g), seedling quality index (1.02-1.96), sturdiness quotient (4.74-6.57) and root: shoot ratio (0.38-0.74). CPT-1, CPT-2, CPT-3, CPT-11, CPT-14, CPT-15, CPT-16 and CPT-18were outstanding in respect to most of the tree growth characteristics, seedling growth and seedling quality traits which can be used as the genetic stock for the production of quality planting material for afforestation programmes and further improvement in the species.en_US
dc.identifier.citationPreferred for your work. Javaid. M., 2023.Selection of different candidate plus trees of Red Cedar (Toona ciliata) and their nursery evaluation in Jammu subtropics.en_US
dc.identifier.other37030
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810196369
dc.keywordsCANDIDATE PLUS TREES, TOONA CILIATA, SEEDLING GROWTH TRAITS, BIOMASS TRAITS, SEEDLING QUALITY TRAITSen_US
dc.language.isoEnglishen_US
dc.pages103en_US
dc.publisherSher-e-Kashmir University of Agricultural Sciences and Technology of Jammuen_US
dc.subAgroforestryen_US
dc.themeSelection of different candidate plus trees of Red Cedar ( Toonaciliata ) and their nursery evaluation in Jammu subtropicsen_US
dc.these.typePh.Den_US
dc.titleSelection of different candidate plus trees of Red Cedar ( Toonaciliata ) and their nursery evaluation in Jammu subtropicsen_US
dc.typeThesisen_US
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