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Mayuri K. Hadwani ¹, D. K. Varu ¹, Niketa Panjiar ², V. J. Babariya ²

Affiliations
1 Department of Horticulture, Agriculture, Junagadh Agricultural University,Junagadh Gujarat
2 Department of Horticulture, Agriculture, Junagadh Agricultural University,Junagadh Gujarat, IN

Abstract

An experiment was conducted to investigate the effect of integrated nutrient management on growth, yield and quality of ratoon tuberose cv. Double at Department of Horticulture, Junagadh Agricultural University, Junagadh. Sixteen treatment combinations of different nutrients were comprised with three replications. Result showed the significant result and application of FYM @ 30 t/ha + PSB @ 2 g/m2 + Azotobacter @ 2 g/m2 (T13) took minimum days to sprouting (18.47 days), maximum plant height (61.67 cm) and plant spread at E-W and N-S (37.93 cm and 37.07 cm, respectively). With respect to flowering, significantly maximum length of spike (78.00 cm), number of florets per spike (44.07), number of spikes per plant (4.26), number of spikes per net plot (127.67), number of spikes per hectare (4.73 lacks), longest vase life (12.33 days) and in situ longevity of spike (20.80 days) were recorded in treatment ½ RDF + NC @ 1 t/ha + PSB @ 1 g/m² + Azotobacter @ 1 g/m² (T4). Similarly, the application of ¼ RDF + PSB @ 1.5 g/m2+ @ Azotobacter 1.5 g/m2 (T6) gave poor performance.

Keywords

azotobacter, Phosphate Solublizing Bacteria, Ratoon, Sprouting

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Lokesh Yadav ¹, D. K. Varu ¹

Affiliations
1 Department of Horticulture, College of Agriculture, Junagadh Agricultural University, Junagadh Gujarat, IN

Abstract

An experiment was conducted to study the pre harvest spray and post harvest dipping of fruit on shelf life and quality of papaya (Carica papaya L.) cv. Madhubindu was carried out at Fruit Research Station, Lalbaug and P.G. Research Laboratory, Department of Horticulture, Junagadh Agricultural University, Junagadh during 2013. The experiment was laid out in Completely Randomized Design (Factorial) in two factors with three replications. There were two factors comprised of pre harvest spray i.e. water spray (S1), GA3 15 ppm (S2), alar 500 ppm (S3), GA3 15 ppm + caobendazim 0.05% (S4) and alar 500 ppm + caobendazim 0.05% (S5) along with post harvestdipping i.e. water (D1), CaCl2 1% (D2) and Ca(NO3)2 (D3).The pre harvest spray of GA3 15 ppm + carbendazim 0.05% and post harvest dip in CaCl2 1% individually as well as their combination (S4D2) were found to be more effective in reducing physiological loss in weight, highest percentage of marketable fruit, lowest percentage of ripened fruit, lowest days to start ripening and highest shelf life. Similarly for biochemical parameters and organoleptic score, highest TSS, lowest acidity, highest ascorbic acid, total sugar, vitamin A and fungus intensity as well as organoleptic parameters like color, texture, taste, flavor and overall acceptability were also found better in GA3 @ 15 ppm + carbendazim 0.05% as pre harvest spray and CaCl2 1% (D1) as post harvest dip. The interaction effect was also found significant and better performance was observed in treatment combination S4D2.

Keywords

Papaya, Pre Harvest, Post Harvest, Shelf Life, Quality

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J. k. Singh ¹, D. K. Varu ²

Affiliations
1 Department of Horticulture, Junagadh Agricultural University, Junagadh Gujarat, IN
2 Department of Horticulture, Junagadh Agricultural University, Junagadh Gujarat, IN

Abstract

The present investigation was conducted to studythe effect of integrated nutrient management in papaya cv. Madhubindu at Department of horticulture. The experiment was laid out in Randomized Block Design with total fourteen treatments combinations including different organic and inorganic nutrient were comprised with three replications. The results revealed that the applications of 1/2 RDF (100:100:125 NPK g/pl) + Azotobacter @ 50 g/pl + PSB @ 2.5 g/m2 (T8) enhanced the growth and yield parameter like highest survival per cent (98.67%), plant height at flowering and harvesting stage, stem girth at flowering and harvesting stage, number of leaves at harvesting stage (24), lower days taken to first flower and first fruit harvest, maximum harvesting span (104 days), fruit length (30 cm), fruit girth (22 cm), highest fruit weight (1670 g), maximum number of fruit/plant (45.33), fruit yield per plant (78 kg), fruit yield per plot (313 kg), fruit yield per hectare (259.97 ton) and marketable fruit yield/plot (299 kg). Similarly, qualitative parameter like reducing, non reducing and total sugars (11.10, 2.43 and 13.58 %, respectively) and total soluble solids (15.47 0B) were also noted highest in same treatment. However, it was found at par with 1/ 4 RDF + 3/4 Jivamrut (T13).Likewise poor performance was observed in control for all parameter.

Keywords

Papaya, Integrated, Nutrient, Vermicompost, Castor Cake, jivamrut, azotobacter, PSB

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D. K. Varu ¹, A. V. Barad ¹

Affiliations
1 Department of Horticulture, College of Agriculture, Junagadh Agricultural University, Junagadh - 362 001, IN

Abstract

A study was carried out to explore the effect of length of stem and stage of harvest on vase life and display quality of tuberose. As regards stem length, 90 cm stem length (L₄) had longest vase life, maximum uptake of water, minimum loss-uptake ratio, maximum fresh weight and percentage of opened florets, and, lowest percentage of abscised floret; whereas, 60 cm stem length (L₂) enhanced longevity of individual florets. In the case of stage of harvest, significantly high vase life, least loss of water, minimum loss-uptake ratio and lowest physiological loss of weight were recorded in two-florets open stage (S₃). Maximum percentage of opened florets and lowest percentage of abscised florets were observed in three-florets open stage (S₄), whereas, maximum uptake of water and fresh weight of spike were seen in one-floret open stage (S₂). Interaction effect of stem length and harvest stage was also found to be significant showing that 75 cm of stem length with one-floret open stage (L₃S₂) was superior for maximum vase life of spike as well as lowest physiological loss of weight.

Keywords

Stem Length, Stage of Harvest, Tuberose, Vase Life.

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D. K. Varu ¹, A. V. Barad ¹

Affiliations
1 Department of Horticulture, College of Agriculture, Junagadh Agricultural University, Junagadh-362 001, IN

Abstract

Studies conducted to find out the effect of date of harvesting and floral preservatives on vase life and quality of tuberose cv. Double revealed that among treatments, harvesting on 1^st October (D₈) was better for longer vase life, whereas, 15^th August (D₅) for minimum loss of water, maximum fresh weight of the spike and percentage of opened florets. Similarly, harvesting on 15^th September (D₇) was found better for longest floret longevity as well as loss uptake ratio. In case of floral preservatives, the treatment 500 ppm aluminum sulphate + 4% sucrose (C₆) was found better for longer vase life, maximum uptake of water, lowest loss-uptake ratio and maximum fresh weight of spike, whereas, 400 ppm 8-HQS + 4% sucrose (C₈) for maximum floret longevity and floret circumference as well as maximum percentage of opened and lowest percentage of neck bent florets. The treatment, 50 ppm silver nitrate + 4% sucrose (C₃) exhibited lowest loss of water. In case of interaction effect, 1^st October with 500 ppm aluminum sulphate + 4% sucrose (D₈C₆) was found superior for maximum vase life of spike, highest uptake of water and fresh weight of spike.

Keywords

Tuberose, Vase Life, Floral Preservatives.

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Urvish Patel ¹, D. K. Varu ¹, Jamsu Chaudhari ¹

Affiliations
1 Department of Horticulture, College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat), IN

Abstract

A trial was conducted to study the effect of pre-harvest spray of chemicals on shelf-life and quality of mango cv. KESHAR. The experiment involved pre-harvest spray of nutrients combined with chemicals and plant growth regulators. The treatments included GA₃ 25 ppm + KNO₃ 2 per cent (T₁), GA₃₂₅ ppm + ZnSO₄ 0.05 per cent (T₂), GA₃₂₅ ppm + borex 1 per cent (T₃), GA₃₂₅ ppm + CaCl₂₂ per cent (T₄), 2, 4-D 20 ppm + KNO₃ 2 per cent (T₅), 2, 4-D 20 ppm + ZnSO₄ 0.05 per cent (T₆), 2, 4-D 20 ppm + borex 1 per cent (T₇) and 2, 4-D 20 ppm + CaCl₂₂ per cent (T₈). The results obtained indicated that the tree sprayed with 2, 4-D 20 ppm + ZnSO₄ 0.05 per cent showed good results in fruit yield and yield attributing characters as well as shelf-life of mango. Whereas physical parameters like highest marketable fruit, minimum spoiled friut, minimum riped fruit as well as lowest days of ripening were recored in pre harvest spray of GA₃₂₅ ppm + borex 1 per cent. The quality parameters like TSS, acidity, ascorbic acid, vitamin- ‘A’, colour, flavour, texture, taste and overall acceptability etc. were performed better in pre harvest spray of GA₃₂₅ ppm + ZnSO₄ 0.05 per cent (T₂) and GA₃₂₅ ppm + CaCl₂ 2 per cent(T₄).

Keywords

Mango, GA₃, 2,4-D, KNO₃, ZnSO₄, Borex, CaCl₂.

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D. R. Kanzaria ¹, R. S. Chovatia ², D. K. Varu ², N. D. Polara ², R. L. Chitroda ², H. N. Patel ², D. V. Patel ²

Affiliations
1 Department of Horticulture, College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat), IN
2 Department of Horticulture, Junagadh Agricultural University, Junagadh (Gujarat), IN

Abstract

The present study was carried out at Department of Horticulture, Junagadh Agricultural University, Junagadh under south Saurashtra agroclimatic conditions during year 2012-13 and 2013-14. The treatments comprised of three locations viz., Junagadh (L₁), Talala (L₂) and Dhari (L₃) and three commercially important mango varieties viz., Kesar (V₁), Alphonso (V₂) and Rajapuri (V₃). The experiment was laid out in Randomized Block Design with Factorial concept (FRBD) and replicated four times. Significantly minimum days for bud differentiation (166.46 days with 1402.94 GDD) were observed at Talala location. Early flower initiation (73.04 days with 420.36 GDD) and short flowering span (60.42 days with 444.69 GDD) was observed at Talala location. Among varieties, early flower initiation (75.83 days and 381.04 GDD) and compact flowering span (60.63 days with 382.84 GDD) was observed in Kesar. Minimum days for fruit set (24.33 with 131.61 GDD), pea stage (20.63 with 173.10 GDD), marble stage (42.96 days and 446.48 GDD), egg stage (69.17 days and 809.13 GDD) and maturity (93.75 days with 1272.06 GDD) were required at Talala, while early fruit set (24.00 with 100.63 GDD), pea stage (20.83 with 144.47 GDD), marble stage (43.67 days and 361.66 GDD), egg stage (70.54 days and 694.79 GDD) and maturity (95.88 days and 1062.71 GDD) was noted in Kesar. The highest fruit set at pea (13.84%), marble (1.57%), egg stage (0.31%) and fruit retention (1.39%) were recorded at Talala. Among varieties, maximum fruit set at pea stage (13.84%) was recorded in Alphonso; on the contrary, it was maximum at marble (1.60%), egg stage (0.32%) and fruit retention (1.32%) in Kesar. Maximum numbers of fruits per tree were recorded at Talala location (335.21) and Alphonso variety (344.33).

Keywords

Flowering, Fruit Set, GDD, Location, Mango, Maturity, Stages, Variety.

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D. K. Varu ¹, A. V. Barad ¹

Affiliations
1 Department of Horticulture, College of Agriculture, Junagadh Agril. University, Junagadh (Gujarat), IN

Abstract

A study was carried out to evaluate the role of packing methods on vase life of tuberose. The packing methods in which the spikes wrapped in 200 gauge polyethylene sheet (P₂) were found for longest vase life of spike, maximum uptake of water, lowest loss-uptake ratio, better freshness as well as lowest wilting of florets and highest percentage of opened florets. However, packing method P₂ was found at par with wrapping the spike in metal paper (P₇). Similarly, the poor response was obtained by the packing in craft paper (P₆) and control (P8) in which the bunch of spikes were packed in CCBB without wrapping.

Keywords

Packing, Tuberose, Spikes, Polyethylene, Sheet.

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