MORPHO-BIOCHEMICAL STUDIES OF TEZPUR LITCHI
| dc.contributor.advisor | Kotoky), U. | |
| dc.contributor.author | GOGOI, SUKANYA | |
| dc.date.accessioned | 2022-02-26T08:09:44Z | |
| dc.date.available | 2022-02-26T08:09:44Z | |
| dc.date.issued | 2018-07 | |
| dc.description.abstract | A study was conducted on different varieties of litchi (Litchi chinesis Sonn.) at litchi garden, Porua, Tezpur and Experimental Farm, Department of Horticulture, Assam Agricultural University, Jorhat during 2016-2018 to have a “Morpho-biochemical studies of Tezpur litchi”. A total of seven varieties with four replications were laid out in a Completely Randomized Design (CRD). The varieties that were taken for investigation were Bombay, Shahi, Piyaji, China, Bilati and Elaichi from Tezpur and Shahi from Jorhat district. The canopy spread of cultivar T2 (Tezpur Shahi) was the highest (15.80m) and lowest (8.65m) in T7 (Jorhat Shahi). Pyramidal, oblong, spherical and elliptical tree shape was observed among the various cultivars of litchi. During the period of investigation, the cultivar T1 (Bombay) took the lowest duration of flowering (18 days) and the highest was recorded in cultivar T5 (Bilati), i.e., 31.50 days. The duration from flowering to harvesting was highest (92.25 days) in T5 (Bilati) and lowest (81.25 days) in T1 (Bombay). The highest fruit weight of 27.79g was recorded in the cultivar T5 (Bilati) which is followed by T4 (China) cultivar (21.88g) and lowest (13.12g) was recorded in T7 (Jorhat Shahi). The highest fruit length of 3.82cm was recorded in the cultivar T3 (Piyaji) and the lowest fruit length (2.97cm) was in T7 (Jorhat Shahi). Fruit circumference showed significant difference among the cultivars where highest (12.40cm) was recorded in T5 (Bilati) and that of lowest (8.70cm) in T7 (Jorhat Shahi). The highest fruit volume (29cc) was recorded in T5 (Bilati) followed by T4 China (24.50cc). Round, cordate, oblong and oval shapes were noticed among the cultivars. The highest aril weight was observed in case of T5 (18.42g) and the lowest was observed in the cultivar T7 i.e., 9.40g. The highest peel weight (4.98g) was recorded in case of Bilati. The highest (6.42) and the lowest (3.07) aril-peel ratio of were observed in case of the cultivar T2 and T7 respectively. The aril thickness was the highest in case of T5 (0.97cm) and the lowest was recorded in T7 (0.47cm). The highest seed weight (3.69g), length (3cm) and diameter (1.27cm) were recorded in T3 (Piyaji) and the lowest values were recorded in T6 (Elaichi). The highest specific gravity of 1.091 was recorded in the cultivar T5 (Bilati) and the lowest (1.036) in T7 (Jorhat Shahi) though their differences among the varieties were found to be non-significant. The variety T4 (China) recorded the highest yield per hectare (48.47t/ha), whereas, the lowest yield (13.92t/ha) was recorded in T7 (Jorhat Shahi). The data on fruit cracking percentage revealed that, the highest fruit cracking (27.22%) was recorded in cultivars T2 (Tezpur Shahi), followed by T3 (Piyaji) and the lowest (12.56%) was in T5 (Bilati). The highest skin strength of 3.21kgcm-2 was recorded in cultivar T5 (Bilati) and T2 (Tezpur Shahi) was found to have the lowest fruit skin strength of 2.48kgcm-2. The highest fruit skin calcium (5.29mg/100g DW) and highest boron content (0.123mg/100g DW) were found in case of the variety T5 (Bilati) and lowest values were in T7 (Jorhat Shahi). Regarding juice content, the highest (18.46cc) was recorded in T5 (Bilati). The cultivar T5 (Bilati) was recorded to have the highest TSS content of 19.77oBrix and the lowest TSS was in T7 (Jorhat Tezpur). The highest titratable acidity (1.65%) was recorded in the cultivar T7 (Jorhat Shahi). Highest reducing sugar (9.86%) and total sugar 17.33% were recorded in the cultivar T5 (Bilati). The cultivar T5 (Bilati) exhibited the highest Vitamin C content of 63.38mg/100g. The highest potassium content (1270mg/100g) was recorded in T5 (Bilati) which was followed by T1 (1105.75mg/100g). The highest anthocyanin content (39.93mg/100g) was recorded in the cultivar T5 (Bilati), whereas, the highest anthocyanin degradation index (4.07) was recorded in the cultivar T7 (Jorhat Shahi). The highest POD (4870.93U/mg protein) and PPO (89.17U/mg protein) specific activity were recorded in T7 (Jorhat Shahi) and that of the lowest values was observed in T5 (Bilati). The highest DPPH inhibition percentage (69.62%) and highest flavonoid content (65.93mg/100g) were recorded in T5 (Bilati). Physiological loss in weight (4.46%) and browning index (243.77) were lowest in T5 (Bilati). Correlation coefficient analysis revealed significant positive correlation of yield with fruit weight, volume, aril weight and canopy spread. The available soil nutrient content of Tezpur was found to be better than that of Jorhat and from this investigation, it can be concluded that, all the litchi varieties of Tezpur were found superior both in quantitative and qualitative characters. | en_US |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810182911 | |
| dc.language.iso | English | en_US |
| dc.publisher | AAU, Jorhat | en_US |
| dc.sub | Horticulture | en_US |
| dc.theme | MORPHO-BIOCHEMICAL STUDIES OF TEZPUR LITCHI | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | MORPHO-BIOCHEMICAL STUDIES OF TEZPUR LITCHI | en_US |
| dc.type | Thesis | en_US |
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