Genetic Variability and Correlation Studies In Snake Gourd (crichosanthos anguina L.) (Record no. 25940)

000 -LEADER
fixed length control field 02563nam a2200181Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20220823144443.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 140128s9999 xx 000 0 und d
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 635.6
Item number JOS/GE
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Joseph S Pynadath
245 ## - TITLE STATEMENT
Title Genetic Variability and Correlation Studies In Snake Gourd (crichosanthos anguina L.)
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Vellanikkara
Name of publisher, distributor, etc. Department Of Olericulture, College Of Horticulture
Date of publication, distribution, etc. 1978
502 ## - DISSERTATION NOTE
Degree type MSc
520 3# - SUMMARY, ETC.
Summary, etc. Studies were undertaken with 25 diverse snake gourd types in the Department of Horticulture (Olericulture), College of Horticulture, Vellanikkara, to estimate the genetic variability, correlation coefficients and path coefficients in the crop, during 1977-78.
The results have shown that the differences between the types were highly significant for all the 21 characters studied.
The estimates of variance components and coefficients of variation have indicated that the major portion of total variability in most of the characters was due to genetic causes, heritabllity in the broad sense was found to be quite high for most of the characters but the heritabllity estimate of yield was only 45.90 per cent. The estimate of genetic gain has shown that by selecting five per cent superior plants from the available population, yield can be improved upto 35.66 per cent over the mean.
Characters such as per cent ash content, crude protein per cent, percentage P, number of female flowers per plant, weight of individual fruit and vitamin C content which exhibited parallelism in the high estimates of heritabillty and genetic gain may be suggested to be due to the action of additive genes and can be straightly improved through selection. The type T.A.19 was found to be the highest yielder.
Yield per plant was found to be highly associated with number of primary branches, days for opening of first female flower, weight of individual fruit, length of fruit and girth of fruit. The correlation coefficients among these yield components were also significant.
Path coefficient analysis has shown that weight of individual fruit, girth of fruit, number of fruits per plant and node at which first female flower appeared are the more important characters contributing to yield, on account of their high direct effects. Number of female flowers per plant and length of fruit are also important characters as their direct effects were moderate and indirect effects substantial.
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name P K Gopalakrishnan (Guide)
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier https://krishikosh.egranth.ac.in/handle/1/5810153677
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Theses
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Permanent Location Current Location Shelving location Date acquired Full call number Barcode Date last seen Price effective from Koha item type
          KAU Central Library, Thrissur KAU Central Library, Thrissur Theses 2014-03-18 635.6 JOS/GE 170985 2014-03-18 2014-03-18 Theses
Kerala Agricultural University Central Library
Thrissur-(Dt.), Kerala Pin:- 680656, India
Ph : (+91)(487) 2372219
E-mail: librarian@kau.in
Website: http://library.kau.in/