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Studies on flowering induction, sex ratio and fruit set improvement in pomegranate

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Title Studies on flowering induction, sex ratio and fruit set improvement in pomegranate
Not Available
 
Creator Kumar, R., Saroj, P.L., Sharma, B.D. and Yadav, P.K.
 
Subject Punica granatum, bisexual flower, flower regulation, water stress, ethrel.
 
Description Not Available
The present study was conducted to induce flowering at the desired period with higher percentage of
bisexual flowers and fruit set to improve yield and minimize fruit cracking through withholding of irrigation,
pruning and ethrel application. Pooled data analysis revealed that horticultural interventions, chemical
treatments and their interactions significantly affected sex ratio and fruit set. Among horticultural interventions,
earliest defoliation (10.47 days), highest defoliation (81.25%), shortest flowering period (64.46 days), minimum
male flowers (58.59%), maximum bisexual flowers (27.43%), maximum fruit set (25.84%) and fruit retention
(82.23%) were recorded in withholding of irrigation during June + pruning and thinning as compared to control
natural flowering. Among chemical treatments, earliest defoliation (7.59 days), highest defoliation (93.35%) and
shortest flowering period (61.07 days) were recorded in ethrel 3 ml/l + DAP 5 g/l application while minimum
male flowers (59.21%), maximum bisexual flowers (25.51%), maximum fruit set (25.16%) and fruit retention
(80.74%) were recorded in ethrel 2 ml/l + DAP 5 g/l treatment as compared to control. Among interactions,
earlier defoliation (6.78 days), highest defoliation (95.72%) and shortest flowering period (55.42 days) were
observed in withholding of irrigation during June + pruning and thinning + ethrel 3 ml/l + DAP 5 g/l treatment.
The minimum male flowers (57.78%), maximum bisexual flowers (28.22%), maximum fruit set (26.39%) and fruit
retention (83.34%) were recorded in withholding of irrigation during June + pruning and thinning + ethrel 2 ml/l
+ DAP 5 g/l treatment as compared to maximum male flowers (66.36%), minimum bisexual flowers (22.03%), fruit set (22.19%) and fruit retention (75.28%) recorded in natural flowering without chemical treatment. Therefore, it can be concluded that withholding of irrigation during June + pruning and thinning + ethrel 2 ml/l + DAP 5 g/l treatment induced flowering during optimal climatic conditions and significantly improved sex ratio and fruit set of pomegranate.
ICAR-CIAH, Bikaner
 
Date 2021-01-21T04:15:19Z
2021-01-21T04:15:19Z
2020-12-01
 
Type Journal
 
Identifier Kumar, R., Saroj, P.L., Sharma, B.D. and Yadav, P.K. (2020). Studies on flowering induction, sex ratio and fruit set improvement in pomegranate. Indian Journal of Horticulture, 77(4): 610-618.
online: ISSN 0974 0112
http://krishi.icar.gov.in/jspui/handle/123456789/44919
 
Language English
 
Relation Not Available;
 
Publisher IAHS, New Delhi