טוען...
Performance of different planting materials of tannia (xanthosoma sagittifolium(L.) schott) under shade
An experiment was conducted for studying the response of different shade levels and planting materials on tannia (Xanthosoma sagittifolium (L.) Schott), an aroid tuber crop. The experiment was done in split plot design with the shade levels of 25 and 50 per cent and open as main plots and top of cor...
| מחבר ראשי: | |
|---|---|
| מחברים אחרים: | |
| פורמט: | Ph.D Thesis |
| יצא לאור: |
Vellanikkara, Thrissur
Department of Agronomy, College of Horticulture
2018
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| נושאים: |
| LEADER | 02824nam a22001697a 4500 | ||
|---|---|---|---|
| 082 | |a 630 |b NAY/PE | ||
| 100 | |a Nayana V R | ||
| 245 | |a Performance of different planting materials of tannia (xanthosoma sagittifolium(L.) schott) under shade | ||
| 260 | |a Vellanikkara, Thrissur |b Department of Agronomy, College of Horticulture |c 2018 | ||
| 300 | |a 96p. | ||
| 502 | |a MSc | ||
| 520 | 3 | |a An experiment was conducted for studying the response of different shade levels and planting materials on tannia (Xanthosoma sagittifolium (L.) Schott), an aroid tuber crop. The experiment was done in split plot design with the shade levels of 25 and 50 per cent and open as main plots and top of corm, cormels, and split corm as planting materials in sub plots. Shading and planting materials affected both growth and yield of tannia. Shade caused taller plants with longer petioles. Leaf numbers, lamina area, and LAI were higher with 50 per cent shade. Open condition decreased leaf life span but increased lamina thickness. Corm yield was higher in 50 per cent shade (6.80 t/ha). Higher number of cormels (10.29) were also obtained from plots with 50 per cent shade. Both 25 and 50 per cent shade recorded highest cormel yield (13.47 t/ha and 12.66 t/ha, respectively). Shoot: storage organ ratio (0.11) was significantly low in open plots, while low corm: cormel ratio (0.48) was noted in 50 per cent shade. Among planting materials, top of corm has taken less days for emergence (15 days) followed by cormels (21days). Top of corm was superior in terms of leaf numbers, leaf area, and LAI. Yield characters including number of cormels (10.63), corm yield (8.13 t/ha), and cormel yield (13.59 t/ha) were also high in top of corm planting. Crude protein content was low in cormels compared to corms. However, starch content was much higher in cormels. Shade increased starch content of cormels, but decreased corm protein content. Higher crude protein content of corm (8.14 %) and cormels (4.38 %) was observed with split corm planting, but higher starch content of corms (56.98 %) and cormels (65.07 %) were noted with top of corm. Oxalate content was unaffected because of treatments but higher in corms than cormels. Higher benefit - cost ratio of 4.86 was observed with planting of top of corm under 50 per cent shade followed by it under 25 per cent shade (4.45). It is concluded that tannia is a shade loving crop, which can be cultivated under 25 to 50 per cent shade using top of corm as planting material. In the absence of enough planting materials, split corm is an ideal substitute. | |
| 650 | |a Agronomy | ||
| 700 | |a George Thomas, C (Guide) | ||
| 942 | |2 ddc |c TH | ||
| 999 | |c 163825 |d 163825 | ||
| 952 | |0 0 |1 0 |4 0 |6 630_000000000000000_NAYPE |7 1 |8 REF |9 163089 |a KAUCLV |b KAUCLV |c THESES |d 2019-02-20 |o 630 NAY/PE |p 174436 |r 2019-02-20 |w 2019-02-20 |y TH | ||