Assessment of male date palm (Phoenix dactylifera) genotypes based on morphological and chemotypic attributes

R K  MEENA; CHET  RAM; R P  MEENA; M K  BERWAL; SHEETAL RAWAT; M K  CHOUDHARY; D  SINGH; R S  SINGH; A K  SINGH

doi:10.56093/ijas.v96i7.134832

Authors

R K MEENA ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
CHET RAM ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
R P MEENA ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
M K BERWAL ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
SHEETAL RAWAT ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
M K CHOUDHARY ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
D SINGH ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
R S SINGH ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan 334 006, India
A K SINGH Central Horticultural Experiment Station (ICAR- Central Institute for Arid Horticulture, Bikaner, Rajasthan), Godhra, Gujarat

https://doi.org/10.56093/ijas.v96i7.134832

Keywords:

Biochemical potential, Date palm, Morphological diversity, Pollinisers

Abstract

Date palm (Phoenix dactylifera L.) is a perennial dioecious plant of hot arid ecosystem, commercially cultivated for edible fruits. Non-synchronous flowering phenomenon in date palm is one of the major challenges, therefore, artificial pollination is essentially required for successful fruit setting. Very scanty and scattered information to identify the superior male date palm genotypes as potential pollinisers based on morpho-biochemical characterisation is available. Therefore, the present study was performed to characterise nine male date palm genotypes based on phenotypic and biochemical parameters during 2020–22 at ICAR-Central Institute for Arid Horticulture, Bikaner, Rajasthan. The carpological and morphological measures of leaf, spathe and inflorescence showed significant variation. The results revealed that CIAH-DP-M8 exhibited the maximum leaf length (400 cm) whereas, the CIAH-DP-M5 exhibited the shortest leaves (250.0 cm). The CIAH-DP-M1 showed superiority in all the recorded parameters related to the inflorescence among the genotype studied. Similarly, in the biochemical parameters also, it was significantly superior in total phenolic content (11.90 mg GAE/g), total antioxidant capacity (16.35 mg AAE/g DW), flavonoids (0.496 mg E.Cat./g DW) and total sugar content (80.90 mg/g) which proved its potential for quality pollen grains production of date palm. The characterised promising male date palm genotype in the present study could serve as potential polliniser in western India.

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