Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810131148
Authors: Vani. N. U
Advisor: Dr. A. BHAGWAN
Title: EFFECT OF PRE HARVEST SPRAY OF PLANT GROWTH REGULATORS AND MICRONUTRIENTS ON YIELD AND POST HARVEST QUALITY OF GUAVA (Psidium guajava L.)
Publisher: College of Horticulture, Rajendranagar, HYD-30
Citation: Sri Konda Laxman Telangana State Horticultural University, Rajendranagar, Hyderabad-30
Language: en
Type: Thesis
Pages: 228
Agrotags: null
Keywords: PRE HARVEST SPRAY, PLANT GROWTH REGULATORS, MICRO NUTRIENTS, YIELD AND POST HARVEST QUALITY
Abstract: A set of two experiments on the effects of plant growth regulators (Salicylic acid@100ppm, GA3@100ppm, NAA@200ppm) and micronutrients (ZnSO4 + Boric acid, ZnSO4 + Boric acid + CuSO4, ZnSO4 + Boric acid +MgSO4, ZnSO4 + Boric acid + CuSO4 + MgSO4 each at 0.4% ) on yield and post harvest quality in fifteen year old guava cv. L-49 under randomized block design with factorial concept and effect of pre harvest spray of different forms of calcium (CaCl2, Ca(NO3)2, CaSO4 each at 1 and 2%) on post harvest quality of guava cv. Allahabad Safeda was conducted at Fruit research station, Sangareddy, SKLTSHU, Telangana. Various yield parameters like fruit set (%), fruit retention (%), fruit drop (%), yield per tree (kg/tree), yield per hectare (t/ha) and physical parameters like fruit length(cm), fruit diameter (cm), fruit weight (g), fruit firmness (kg/cm2), shelf life (days), PLW(%), spoilage(%) and bio-chemical parameters like TSS (ͦ Brix), ascorbic acid (mg/100g), titrable acidity (%), total sugars (%), reducing sugars (%), non- reducing sugars (%) and Brix: Acid ratio were recorded. In the first experiment, among plant growth regulators, NAA@200ppm has recorded significantly highest fruit set, fruit retention, yield per tree, yield per hectare fruit length, fruit weight, fruit firmness, total soluble solids, Brix: acid ratio, ascorbic acid, total sugars, reducing sugars and non reducing sugars. The same treatment recorded minimum fruit drop, titrable acidity and PLW. Further, NAA@200ppm and GA3@ 100ppm were on par by recording the highest fruit diameter. Among micronutrients, ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% has recorded significantly highest fruit set, fruit retention, yield per tree, yield per hectare fruit length, fruit weight, fruit firmness, fruit diameter and ascorbic acid. However, ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% recorded the highest total soluble solids, Brix: acid ratio, non reducing sugars and the lowest acidity. Whereas, ZnSO4 @ 0.4% + Boric acid @ 0.4% recorded the highest total sugars and reducing sugars and the lowest PLW. In interaction effects, NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% has recorded significantly maximum fruit set (76.15%), fruit retention (78.25%), fruit yield per tree (116.92kg/tree), yield per hectare (46.77t/ha), fruit weight (187.07g), fruit firmness (9.07kg/cm2) and reducing sugars (4.49%). Minimum fruit drop percentage (21.75%) was recorded in the same treatment. However, NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 0.4% recorded highest TSS (11.72°Brix), Brix: Acid ratio (39.27), ascorbic acid (243.67mg/100g), total sugars (8.00%), non reducing sugars (3.99%) and minimum acidity (0.30%). Maximum fruit length (7.69cm) and fruit diameter (7.53cm) were observed with GA3@100ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4@0.4% + MgSO4 @0.4%. Whereas, minimum PLW(16.13%) was recorded in GA3@100ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4%. Maximum B:C ratio (5.07) was recorded in NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + MgSO4 @0.4%. NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% was superior in improving the yield and quality attributes of guava cv. Lucknow-49. In the second experiment, among different forms of pre-harvest sprays of calcium, Ca(NO3)2 @ 2% has recorded significantly the highest total soluble solids (11.39 ͦ B), ascorbic acid (159.49mg/100g), total sugars (9.00%), reducing sugars (5.23%), non-reducing sugars (3.78%), TSS: Acid ratio (31.08), fruit firmness (10.03kg/cm2), shelf life (8.51days) when compared to control. The same treatment recorded minimum acidity (0.37%), PLW (11.63%) and spoilage percentage (62.86%). Ca(NO3)2@ 2% emerged as best treatment to improve the quality attributes of guava cv. Allahabad Safeda.
Description: A set of two experiments on the effects of plant growth regulators (Salicylic acid@100ppm, GA3@100ppm, NAA@200ppm) and micronutrients (ZnSO4 + Boric acid, ZnSO4 + Boric acid + CuSO4, ZnSO4 + Boric acid +MgSO4, ZnSO4 + Boric acid + CuSO4 + MgSO4 each at 0.4% ) on yield and post harvest quality in fifteen year old guava cv. L-49 under randomized block design with factorial concept and effect of pre harvest spray of different forms of calcium (CaCl2, Ca(NO3)2, CaSO4 each at 1 and 2%) on post harvest quality of guava cv. Allahabad Safeda was conducted at Fruit research station, Sangareddy, SKLTSHU, Telangana. Various yield parameters like fruit set (%), fruit retention (%), fruit drop (%), yield per tree (kg/tree), yield per hectare (t/ha) and physical parameters like fruit length(cm), fruit diameter (cm), fruit weight (g), fruit firmness (kg/cm2), shelf life (days), PLW(%), spoilage(%) and bio-chemical parameters like TSS (ͦ Brix), ascorbic acid (mg/100g), titrable acidity (%), total sugars (%), reducing sugars (%), non- reducing sugars (%) and Brix: Acid ratio were recorded. In the first experiment, among plant growth regulators, NAA@200ppm has recorded significantly highest fruit set, fruit retention, yield per tree, yield per hectare fruit length, fruit weight, fruit firmness, total soluble solids, Brix: acid ratio, ascorbic acid, total sugars, reducing sugars and non reducing sugars. The same treatment recorded minimum fruit drop, titrable acidity and PLW. Further, NAA@200ppm and GA3@ 100ppm were on par by recording the highest fruit diameter. Among micronutrients, ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% has recorded significantly highest fruit set, fruit retention, yield per tree, yield per hectare fruit length, fruit weight, fruit firmness, fruit diameter and ascorbic acid. However, ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% recorded the highest total soluble solids, Brix: acid ratio, non reducing sugars and the lowest acidity. Whereas, ZnSO4 @ 0.4% + Boric acid @ 0.4% recorded the highest total sugars and reducing sugars and the lowest PLW. In interaction effects, NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% has recorded significantly maximum fruit set (76.15%), fruit retention (78.25%), fruit yield per tree (116.92kg/tree), yield per hectare (46.77t/ha), fruit weight (187.07g), fruit firmness (9.07kg/cm2) and reducing sugars (4.49%). Minimum fruit drop percentage (21.75%) was recorded in the same treatment. However, NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 0.4% recorded highest TSS (11.72°Brix), Brix: Acid ratio (39.27), ascorbic acid (243.67mg/100g), total sugars (8.00%), non reducing sugars (3.99%) and minimum acidity (0.30%). Maximum fruit length (7.69cm) and fruit diameter (7.53cm) were observed with GA3@100ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4@0.4% + MgSO4 @0.4%. Whereas, minimum PLW(16.13%) was recorded in GA3@100ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4%. Maximum B:C ratio (5.07) was recorded in NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + MgSO4 @0.4%. NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% was superior in improving the yield and quality attributes of guava cv. Lucknow-49. In the second experiment, among different forms of pre-harvest sprays of calcium, Ca(NO3)2 @ 2% has recorded significantly the highest total soluble solids (11.39 ͦ B), ascorbic acid (159.49mg/100g), total sugars (9.00%), reducing sugars (5.23%), non-reducing sugars (3.78%), TSS: Acid ratio (31.08), fruit firmness (10.03kg/cm2), shelf life (8.51days) when compared to control. The same treatment recorded minimum acidity (0.37%), PLW (11.63%) and spoilage percentage (62.86%). Ca(NO3)2@ 2% emerged as best treatment to improve the quality attributes of guava cv. Allahabad Safeda.
Subject: Fruit Science
Theme: A set of two experiments on the effects of plant growth regulators (Salicylic acid@100ppm, GA3@100ppm, NAA@200ppm) and micronutrients (ZnSO4 + Boric acid, ZnSO4 + Boric acid + CuSO4, ZnSO4 + Boric acid +MgSO4, ZnSO4 + Boric acid + CuSO4 + MgSO4 each at 0.4% ) on yield and post harvest quality in fifteen year old guava cv. L-49 under randomized block design with factorial concept and effect of pre harvest spray of different forms of calcium (CaCl2, Ca(NO3)2, CaSO4 each at 1 and 2%) on post harvest quality of guava cv. Allahabad Safeda was conducted at Fruit research station, Sangareddy, SKLTSHU, Telangana. Various yield parameters like fruit set (%), fruit retention (%), fruit drop (%), yield per tree (kg/tree), yield per hectare (t/ha) and physical parameters like fruit length(cm), fruit diameter (cm), fruit weight (g), fruit firmness (kg/cm2), shelf life (days), PLW(%), spoilage(%) and bio-chemical parameters like TSS (ͦ Brix), ascorbic acid (mg/100g), titrable acidity (%), total sugars (%), reducing sugars (%), non- reducing sugars (%) and Brix: Acid ratio were recorded. In the first experiment, among plant growth regulators, NAA@200ppm has recorded significantly highest fruit set, fruit retention, yield per tree, yield per hectare fruit length, fruit weight, fruit firmness, total soluble solids, Brix: acid ratio, ascorbic acid, total sugars, reducing sugars and non reducing sugars. The same treatment recorded minimum fruit drop, titrable acidity and PLW. Further, NAA@200ppm and GA3@ 100ppm were on par by recording the highest fruit diameter. Among micronutrients, ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% has recorded significantly highest fruit set, fruit retention, yield per tree, yield per hectare fruit length, fruit weight, fruit firmness, fruit diameter and ascorbic acid. However, ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% recorded the highest total soluble solids, Brix: acid ratio, non reducing sugars and the lowest acidity. Whereas, ZnSO4 @ 0.4% + Boric acid @ 0.4% recorded the highest total sugars and reducing sugars and the lowest PLW. In interaction effects, NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% has recorded significantly maximum fruit set (76.15%), fruit retention (78.25%), fruit yield per tree (116.92kg/tree), yield per hectare (46.77t/ha), fruit weight (187.07g), fruit firmness (9.07kg/cm2) and reducing sugars (4.49%). Minimum fruit drop percentage (21.75%) was recorded in the same treatment. However, NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 0.4% recorded highest TSS (11.72°Brix), Brix: Acid ratio (39.27), ascorbic acid (243.67mg/100g), total sugars (8.00%), non reducing sugars (3.99%) and minimum acidity (0.30%). Maximum fruit length (7.69cm) and fruit diameter (7.53cm) were observed with GA3@100ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4@0.4% + MgSO4 @0.4%. Whereas, minimum PLW(16.13%) was recorded in GA3@100ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4%. Maximum B:C ratio (5.07) was recorded in NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + MgSO4 @0.4%. NAA@200ppm and ZnSO4 @ 0.4% + Boric acid @ 0.4% + CuSO4 @0.4% + MgSO4 @0.4% was superior in improving the yield and quality attributes of guava cv. Lucknow-49. In the second experiment, among different forms of pre-harvest sprays of calcium, Ca(NO3)2 @ 2% has recorded significantly the highest total soluble solids (11.39 ͦ B), ascorbic acid (159.49mg/100g), total sugars (9.00%), reducing sugars (5.23%), non-reducing sugars (3.78%), TSS: Acid ratio (31.08), fruit firmness (10.03kg/cm2), shelf life (8.51days) when compared to control. The same treatment recorded minimum acidity (0.37%), PLW (11.63%) and spoilage percentage (62.86%). Ca(NO3)2@ 2% emerged as best treatment to improve the quality attributes of guava cv. Allahabad Safeda.
Research Problem: EFFECT OF PRE HARVEST SPRAY OF PLANT GROWTH REGULATORS AND MICRONUTRIENTS ON YIELD AND POST HARVEST QUALITY OF GUAVA (Psidium guajava L.)
These Type: M.Sc
Issue Date: 2019-07-25
Appears in Collections:Thesis

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