STANDARDIZATION OF GROWTH REGULATORS FOR RACHIS ELONGATION IN CRIMSON SEEDLESS AND BERRY AND FLOWER THINNING IN RED GLOBE GRAPES (Vitis vinfera L.)
| dc.contributor.advisor | Dr. J. SATISHA | |
| dc.contributor.author | SUNITA PATIL | |
| dc.date.accessioned | 2017-11-28T06:07:16Z | |
| dc.date.available | 2017-11-28T06:07:16Z | |
| dc.date.issued | 2017-07-26 | |
| dc.description | The field experiment was laid out in Randomized Block Design (RBD) comprising a total of four treatments and replicated seven times in experiment -I and seven treatments and replicated four times in experiment-II. | en_US |
| dc.description.abstract | A research trial was undertaken during the year 2016-17 at experimental vineyard ICAR-Indian Institute of Horticultural Research located at Hessaraghatta, Bengaluru on “Standardization of growth regulators for rachis elongation in Crimson Seedless and berry/flower thinning in Red Globe grapes (Vitis vinfera L)”. The field experiment was laid out in Randomized Block Design (RBD) comprising a total of four treatments and replicated seven times in experiment -I and seven treatments and replicated four times in experiment-II. The first experiment was conducted to standardize concentration of GA3 for rachis elongation of Crimson Seedless grapes. Three different concentrations of GA3 {viz., 5 ppm (T1), 7.5 ppm (T2) and 10 ppm (T3)} were sprayed during pre-bloom stage and compared with unsprayed control (T4).Among different treatments, pre-bloom spray of GA3 @5 ppm produced less compact bunches with highest total length of rachis(124.91 cm), average bunch weight (507.49 g), berry weight (4.92 g); berry length (25.85 mm); TSS (18.50B), sugar acid ratio(83.82); total sugars (18.2g/100 g) and with least bunch compactness (0.94). Among different treatments, pre-bloom spray of GA3 @7.5 ppm could increase anthocyanin concentration (247.9 g/100g) compared to other treatments. However, the bunches sprayed with 7.5 ppm and 10 ppm GA3 produced good quality bunches with average berry weight and TSS was less. Because of severe coiling of rachis at 7.5 ppm and 10 ppm GA3 spraying, the bunches were too straggly compared to spraying of 5 ppm GA3. The control bunches without GA3 spray produced very compact clusters (2.6) with less average bunch weight (433 g), berry weight (3.98 g), berry diameter (16.87 mm) and berry length (22.76 mm). The second experiment was conducted to standardize flower thinning chemicals in Red Globe to improve the bunch and berry quality parameters. Different organic and inorganic chemicals viz., 0.5 % Olive oil (T1); 0.3% Caffeine (T2); 0.1 % Hydrogen Cyanamide (T3); 0.1 % Dinitro Ortho Cresolate (T4); 0.5 % Copper Sulphate (T5) were sprayed during full bloom stage and were controlled with manual berry thinning at 8-10 mm stage (T6) and untreated control (T7). Among different treatments, spraying of olive oil could increase rachis length (122.73 cm), least bunch compactness (0.91) was observed and CuSO4 (1.09) also could produce less compact bunches. However the average bunch weight, berry diameter and berry length was highest on vines sprayed with caffeine and olive oil. Bunch compactness was highest in control (2.56) vines and least bunch weight (599.38 g) was also recorded on control vines. Among different treatments manual berry thinning at 8-10 mm stage could produce highest TSS and total sugars. Though the treatments like CuSO4 and Hydrogen Cyanamide could produce loose clusters with good bunch weight, scorching of rachis was observed indicating their toxicity. Among the treatments studied the bunches treated with olive oil and caffeine could produce good quality bunches. | en_US |
| dc.identifier.citation | ICAR-Indian Institute of Horticultural Research located at Hessaraghatta, Bengaluru | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810036550 | |
| dc.keywords | Standardization of growth regulators,rachis elongation,Crimson Seedless and berry/flower thinning in Red Globe grapes. | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 1-118 | en_US |
| dc.publisher | COLLEGE OF HORTICULTURE VENKATARAMANNAGUDEM, WEST GODAVARI – 534 101 Dr. Y.S.R. HORTICULTURAL UNIVERSITY | en_US |
| dc.research.problem | STANDARDIZATION OF GROWTH REGULATORS FOR RACHIS ELONGATION IN CRIMSON SEEDLESS AND BERRY AND FLOWER THINNING IN RED GLOBE GRAPES (Vitis vinfera L.) | en_US |
| dc.sub | Fruit Science | en_US |
| dc.subject | null | en_US |
| dc.theme | The field experiment was laid out in Randomized Block Design (RBD) comprising a total of four treatments and replicated seven times in experiment -I and seven treatments and replicated four times in experiment-II. | en_US |
| dc.these.type | M.Sc | en_US |
| dc.title | STANDARDIZATION OF GROWTH REGULATORS FOR RACHIS ELONGATION IN CRIMSON SEEDLESS AND BERRY AND FLOWER THINNING IN RED GLOBE GRAPES (Vitis vinfera L.) | en_US |
| dc.type | Thesis | en_US |