Abstract:
An experiment was conducted to observe the performances of four tomatillo
and two tomato genotypes under three different replications in same growing
season. The factorial experiment included four tomatillo and two tomato
genotypes viz. G1 (SAU tomatillo-1), G2 (SAU tomatillo-2), G3 (PI003), G4
(PI004), G5 (BD-7306), G6 (BD-7761) were outlined in Randomized Complete
Block Design (RCBD). 20 days aged seedlings were transplanted to main field.
The results showed that both the different tomatillos and tomatoes genotypes
genotype G6 had the highest pH (4.90) and the lowest pH was found in the
genotype G2 (3.80). The genotype G6 had the maximum vitamin C (26.58
mg/100g) whereas the minimum (0.00 mg/100g) was found from G3. The
highest dry matter content was observed by the genotype G1 (1.20 g) and the
lowest dry matter content was found in G5 (0.30 g). The highest brix %
(5.800%) was observed in G4 whereas the lowest (2.617%) from G5. The
genotype G5 recorded the highest lycopene content of the fruit (20.61 mg),
while the lowest was observed by the genotype G4 (0.2833 mg) in case of 472
nm. In case of 502 nm the highest lycopene content of fruit was observed in
genotype G1 (26.62 mg) and the lowest was observed in the genotype G4
(0.07667 mg). The maximum moisture percentage was checked in the genotype
G5 (95.0 %) and the minimum was checked in the genotype G1 (77.67 %). The
conducted study disclosed that high heritability coupled with high expected
genetic advance as percent of means were observed in case of pH (95.05 % and
21.72 % respectively), vitamin C (97.69 % and 273.45 % respectively), dry
matter content (87.39 % and 97.26 % respectively), brix (98.33 % and 65.26 %
respectively), lycopene at 472 nm (97.88 % and 303.84 %) and lycopene at 502
nm (98.78 % and 251.89 %) respectively indicating good response to selection
for these characters. Therefore, based on the quality performance of tomatillo
and tomato genotypes, G1 could be selected for high dry matter content, high
lycopene and more brix% in the fruit. But for vitamin C as well as fruit pH
genotypes G6 could be selected. For bulky, that means with high moisture
percentage as well as with high lycopene content, G5 could be selected.
Description:
A Thesis
submitted to the Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
GENETICS AND PLANT BREEDING
SEMESTER: JANUARY-JUNE, 2016