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Plus tree selection, progeny testing and reproductive biology of Khejri (Prosopis cineraria (L.) Druce)

KrishiKosh

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Title Plus tree selection, progeny testing and reproductive biology of Khejri (Prosopis cineraria (L.) Druce)
 
Creator Preeti Singh
 
Contributor Bangarwa, K.S.
 
Subject Developmental stages, Biological phenomena, Selection, Sowing, Tree classes, Genetics, fruits, budding, Vegetative propagation, Breeds (Animals)
 
Description The vital importance of Prosopis cineraria in present day context in terms of its multiple uses
in general and lack of information on its genetic aspects especially reproductive biology, plus tree
selection and progeny testing, promoted the present study. The study was conducted by collecting
seeds from plus trees from areas around Bhiwani, Fatehabad, Bawal and Bhattu in Haryana based on
the desirable characters of economic interest. The remaining part of this study comprised the
investigation on phenology, floral biology and breeding systems were carried out on the trees growing
at the field of Forestry department of CCS Haryana Agricultural University, Hisar during 2014-15. A
considerable amount of variation for different morphological characters such as height, clear bole
height, girth at breast height etc. was found among twenty one plus trees from Haryana. Ample genetic
variation was also observed for field emergence, seedling height, basal diameter, root: shoot ratio etc.
among the progenies of the selected plus trees. Among all the progenies, the progeny of PC11 from
Bawal was found most outstanding followed by the progeny of PC8 from Fatehabad. Defoliation
started during the month of November and continued till end of January. Initiation of leaf primordial
was noticed during the last week of February at the terminal end of the branches. Panicle initiation
started in the first week of March and continued till 2
nd
of April. The floral buds started to open from
first week of April to third week of April. The flowering pattern was asynchronous i.e. new flowers
were developing at different times on the same tree. The trees were in full bloom from second week of
April to third week of May. Maximum flower opening ranging from 84.38 to 93.82 per cent was
recorded between 0800-0900 h. The shiny stigma a reflection of stigma receptivity occurred between
0800 to 1100 h. Khejri tree was found cross fertilizing in which percent pod set varied from 0 for
selfing to 2.03 per cent for natural open pollination.
 
Date 2016-10-25T14:32:31Z
2016-10-25T14:32:31Z
2016
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81873
 
Language en
 
Format application/pdf
 
Publisher CCSHAU