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Assessment of olive genotypes towards phenology, pollen viability and germination in Pakistan

Muhammad Azhar Iqbal, Ishfaq Ahmad Hafiz, Nadeem Akhtar Abbasi, Muhammad AzeemTariq, Muhammad Ramzan Anser, Mahmood-ul-Hassan, Muhammad Izhar Naeem Bhatti, Muhammad Aftab, Azmat Ali Awan, Muhammad Faisal Khan

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Int. J. Biosci.16(1), 20-31, January 2020

DOI: http://dx.doi.org/10.12692/ijb/16.1.20-31


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Pollen viability and germination tests are consider key factors for final productivity. Hence characterization of pollen and phenological aspects of eighteen olive cultivars were studied under an experiment carried out at Barani Agricultural Research Institute, Chakwal, Pakistan. Pollen viability was tested through Acetocarmine and germination was analyzed in the culture media having water, boric acid, sucrose and agar.  Results depicted that the maximum number of panicles were recorded in variety Earlik (27.90) and minimum in variety Ottobratica. In general more number of panicles was recorded in 2018 in all most all the varieties as compared to 2017. Highest numbers of flower per branch were observed in variety Ottobratica in both years of study. Staminate flowers were also noted at maximum level again in variety Ottobratica. Maximum final fruit set percentage was recorded in variety Moraiolo (4.23 %) and Coratina (3.70 %) in first year of study while Coratina (3.75 %) and Frantoio (3.59 %) depicted highest fruit set percentage in second year of study. Maximum pollen viability (79.18% & 53.08) was recorded by in Variety Gemlik while minimum values were recorded in Variety Leccino (27.16 % & 47.62 %) in both the years 2017 & 2018 respectively. The germination rate varied among all the varieties. Varieties Ottobratica and Gemlik showed maximum value of pollen germination rate during the study year while minimum rate was recorded again in variety Leccino.


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