关键词:
chemico-physical properties
cultivars
Pakistan
Phoenix dactylifera
摘要:
Six date palm cultivars i.e. Azadi, Dhakki, Gulistan, Zahidi, Shakri and Khudrawi commonly grown in Dera Ismail Khan were studied for their physio- chemical composition at Agricultural Research Institute, Dera Ismail Khan, Pakistan during the year 2006. Physio-chemical measurement was made at Kimri, Khalal, Rutab and Tamr stages. The results revealed that at Kimri stage number .of weeks taken to complete the maturity were maximum in Gulistan (16.40 weeks), Dhakki (16.10 weeks) and Zahidi (16.00 weeks) against minimum in Shakri (11.86). Significant differences were observed for physio-chemical characteristics at various maturity stages. Among the varieties maximum fruit size i.e. length (5.092 cm), dia (3.065 cm), fruit weight (23.36 g) and pulp weight (21.58 g) was produced by cv. Dhakki at Kimri stage. The moisture was found maximum in cv. Shakri at Kimri stage (85.05%). The total, reducing and non-reducing sugars were maximum (71.05, 56.65 and 13.87%) in cultivar Dhakki at Tamr stage. The astringency percentage was found maximum in cv. Khudrawi (1.46%) at Rutab stage. Maximum yield (96.00 kg/palm) was found in Dhakki while minimum in Zahidi (32.00 kg/palm). [ABSTRACT FROM AUTHOR]