FIELD EVALUATION OF IN VITRO DERIVED MUTANTS OF DIFFERENT VARIETIES OF BANANA (Musa spp.)
Loading...
Date
2021-11
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Horticultural Sciences, Bagalkot. (College of Horticulture, Bagalkot).
Abstract
The experiment entitled “Field evaluation of in vitro derived mutants of
different varieties of banana (Musa spp.)” was conducted at MHREC Fruit Orchard
(Sector-70) of University of Horticultural Sciences, Bagalkot during 2018 to 2020.
There were 138 The healthy vigorous pest and disease free in vitro derived mutants
lines of Yelakki bale (69 mutants), Rajapuri bale (47 mutants) and Nanjangud
Rasabale (22 mutants) along with checks were planted at spacing of 1.5m×1.5m in pit
method employing augmented block design. In plant crop, there was significant
difference found at flowering in morphological traits viz., plant height (cm), leaf
length (cm) leaf area (m2
) and number of leaves, in reproductive traits viz., days taken
to flowering (number of days), in yield traits viz., length of bunches (cm), internodal
length between hands (cm), number of fingers per bunch, length of finger (cm),
weight of finger (g) yield (tonnes/ha) and in quality and biochemical traits viz., TSS
(
0
brix)
, non-reducing sugars (%), total chlorophyll leaf content (spad), peel weight (g)
and flavour acceptance. In the ratoon crop, there was significant difference found at
flowering in morphological traits viz., plant height (cm) and leaf length (cm), in
reproductive traits viz., days taken to flowering (number of days), days from
flowering to maturity (number of days), in yield traits viz., number of fingers per
bunch, number of fingers per hand and in quality and biochemical traits viz., nonreducing sugars, total chlorophyll leaf content (SCMR), flavour acceptance and shelf
life (number of days). In Yelakki bale, line YB40Gy-03 (218.57 cm, 247.00 days,
10.17 kg, and 234.00 cm 216 days, 5.45 kg), YB45Gy-03 (217.00 cm, 11.96 kg and
228.60 cm 5.79 kg), YB EMS 0.9% - 2 (218.00 cm, 10.84 kg and 229.61 cm 5.42 kg
), in Rajapuri bale RAJ40Gy- 03 (238 days, 98 days and 223 days, 106 days) and
RAJ45Gy - 15 (238 cm, 102 days, 6.18 kg and 223 cm 96 days, 7.56 kg) and in
Nanjangud Rasabale line NR40Gy - 07 (238.54 cm, 265.00 days, 97 days 7.45 kg and
235 cm 248.00 days, 104 days 5.29 kg) and NR40Gy - 09 ( 231.79 cm, 104 days, 6.32
kg and 188 cm, 106 days, 4.28 kg) NR EMS 0.6% - 3 (267 days, 95 days and 251
days 105 days) NR EMS 0.9% - 5 (264 days, 108 days and 245 days, 96 days) were
identified as putative mutants for important agronomic traits viz., dwarfness, early
flowering, early maturity and bunch weight considering their performance both in
plant and ratoon crop, respectively.