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Performance of different planting materials of tannia (xanthosoma sagittifolium(L.) schott) under shade (Record no. 163825)

MARC details
000 -LEADER
fixed length control field	02773nam a22001697a 4500
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number	630
Item number	NAY/PE PG
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name	Nayana,V R
245 ## - TITLE STATEMENT
Title	Performance of different planting materials of tannia (xanthosoma sagittifolium(L.) schott) under shade
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc	Vellanikkara, Thrissur
Name of publisher, distributor, etc	Department of Agronomy, College of Horticulture
Date of publication, distribution, etc	2018
300 ## - PHYSICAL DESCRIPTION
Extent	96p.
502 ## - DISSERTATION NOTE
Dissertation note	MSc
520 3# - SUMMARY, ETC.
Abstract	An experiment was conducted for studying the response of different shade<br/>levels and planting materials on tannia (Xanthosoma sagittifolium (L.) Schott), an aroid<br/>tuber crop. The experiment was done in split plot design with the shade levels of 25<br/>and 50 per cent and open as main plots and top of corm, cormels, and split corm as<br/>planting materials in sub plots. Shading and planting materials affected both growth<br/>and yield of tannia.<br/>Shade caused taller plants with longer petioles. Leaf numbers, lamina area, and<br/>LAI were higher with 50 per cent shade. Open condition decreased leaf life span but<br/>increased lamina thickness. Corm yield was higher in 50 per cent shade (6.80 t/ha).<br/>Higher number of cormels (10.29) were also obtained from plots with 50 per cent<br/>shade. Both 25 and 50 per cent shade recorded highest cormel yield (13.47 t/ha and<br/>12.66 t/ha, respectively). Shoot: storage organ ratio (0.11) was significantly low in<br/>open plots, while low corm: cormel ratio (0.48) was noted in 50 per cent shade.<br/>Among planting materials, top of corm has taken less days for emergence (15<br/>days) followed by cormels (21days). Top of corm was superior in terms of leaf<br/>numbers, leaf area, and LAI. Yield characters including number of cormels (10.63),<br/>corm yield (8.13 t/ha), and cormel yield (13.59 t/ha) were also high in top of corm<br/>planting.<br/>Crude protein content was low in cormels compared to corms. However, starch<br/>content was much higher in cormels. Shade increased starch content of cormels, but<br/>decreased corm protein content. Higher crude protein content of corm (8.14 %) and<br/>cormels (4.38 %) was observed with split corm planting, but higher starch content of<br/>corms (56.98 %) and cormels (65.07 %) were noted with top of corm. Oxalate content<br/>was unaffected because of treatments but higher in corms than cormels.<br/>Higher benefit - cost ratio of 4.86 was observed with planting of top of corm<br/>under 50 per cent shade followed by it under 25 per cent shade (4.45). It is concluded<br/>that tannia is a shade loving crop, which can be cultivated under 25 to 50 per cent shade<br/>using top of corm as planting material. In the absence of enough planting materials,<br/>split corm is an ideal substitute.<br/>
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element	Agronomy
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name	George Thomas, C (Guide)
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier	http://krishikosh.egranth.ac.in/handle/1/5810145905
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme	Dewey Decimal Classification
Item type	Theses

Holdings
Not for loan	Collection code	Home library	Current library	Shelving location	Date acquired	Full call number	Barcode	Date last seen	Koha item type
Not For Loan	Reference Book	KAU Central Library, Thrissur	KAU Central Library, Thrissur	Theses	20/02/2019	630 NAY/PE	174436	20/02/2019	Theses