Record Details

Effect of Plant Growth Regulators on flowering, fruiting and quality of Cashew (Anacardium occidentale L.) cv. Vengurla-4 grown under South Gujarat conditions

KrishiKosh

View Archive Info
 
 
Field Value
 
Title Effect of Plant Growth Regulators on flowering, fruiting and quality of Cashew (Anacardium occidentale L.) cv. Vengurla-4 grown under South Gujarat conditions
 
Creator Ghadage, Vishal R
 
Contributor Ahlawat, T.R.
 
Subject plant growth substances, nuts, developmental stages, fruits, biological development, planting, auxins, yields, mangoes, sets
 
Description The present investigation on “Effect of Plant Growth Regulators on flowering, fruiting and quality of Cashew (Anacardium occidentale L.) cv. Vengurla-4 grown under South Gujarat conditions” was carried out at two locations namely Subir and Chikhalda locations in the Dang district of South Gujarat. The laboratory work was carried out at Central Instrumentation Laboratory, NMCA, NAU, Navsari and Department of Soil Science and Agril. Chemistry, ASPEE College of Horticulture and Forestry, Navsari Agricultural
University, Navsari.
The experiment comprised of ten treatments including control (water spray) and was laid out in Randomized Block Design with three replications. Three concentrations each of Ethrel (10, 30 and 50 ppm), GA3 (50, 75 and 100 ppm) and NAA (50, 75 and 100 ppm) were applied as foliar sprays,
20 days before blossoming and 20 days after full bloom in cashew cv. Vengurla-4. The effect of these growth regulators on growth characters, flowering traits, fruiting parameters, yield attributes and quality parameters was recorded and analyzed statistically for the sake of brevity, results were stated on pooled basis.
Between the two growth characters, foliar application of Ethrel @ 50 ppm resulted in significantly the highest number of panicles per sq m
(13.09) in cashew cv. Vengurla-4. However, plant growth regulators did not have a significant influence on the number of laterals per sq m.
With regard to flowering parameters, significantly the highest number of perfect flowers (87.11) per panicle and the highest sex ratio (0.24) were registered by Ethrel @50 ppm. However, flowering duration (days), total number of flowers and number of male flowers per panicle did not give a significant response to the application of different plant growth regulators.
As far as fruiting parameters are concerned, Ethrel @ 50 ppm resulted in the highest fruit set per sq m (19.44), number of nuts per panicle at peanut stage (76.41), number of nuts per panicle at marble stage (33.82) and fruit retention (9.61%). Ethrel @ 10 ppm was at par with 50 ppm for fruit set per sq m and number of nuts per panicle at peanut and marble stage.
Of the different yield attributes nut weight (7.36 g), nut yield (3.11 kg per tree and 634.73 kg per ha), shelling (27.37 %) and kernel weight (1.87 g) were the highest under Ethrel @ 50 ppm. The same treatment also recorded significantly lower kernel count (196.50). Application of plant growth regulators failed to elicit a significant response on apple weight (g) and apple volume (ml).
Plant growth regulators did not show a significant impact on various qualitative parameters included in the study viz. Apple TSS (o Brix), apple acidity (%), kernel protein (%), kernel fat (%) and kernel carbohydrate
(%). The highest benefit cost ratio (2.71) was observed when cashew cv. Vengurla-4 was subjected to two sprays of Ethrel @ 50 ppm, once before blossoming and again after full bloom
 
Date 2016-04-30T11:32:05Z
2016-04-30T11:32:05Z
2014
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/65680
 
Language en
 
Format application/pdf
 
Publisher NAU