Agricultural Research Corporation (ARC) - Sudan
Proceedings of the Meetings of the National Crop Husbandry Committee - NCHC
Back to the 37th Meeting of the NCHC - Contents
Effect of irrigation interval and picking time on lint quality and the degree of stickiness
on two
cotton varieties
Abdelrahman H. Abdelatif , Abdelaziz A. Hashim , Ahmed S. Fadlalla1,
Mohamed M. Omer1 and Hussein S. Adam
Abstract:
This study was carried out at the Gezira Research Station (GRS) in Wad
Medani during two successive seasons (2000-01 and 2001-02), to
investigate the effect of two crop management practices (watering
interval and picking time) on cotton lint quality and stickiness level.
The treatments included: three irrigation intervals (7, 14 and 21 days),
two picking times (successive pickings and farmer’s practice) and two
cultivars (Barac (67)B and Barakat-90). Results showed no clear
differences in yield and quality between the two shorter watering
intervals, 7 and 14 days for both cotton cultivars. On the other hand,
the longer irrigation interval of 21 days lowered fibre maturity
compared to the other shorter watering intervals (and also decreased the
yield by 16% and 22% for Barac (67)B and Barakat, respectively. The
farmer’s practice (late picking) exposed the seed cotton to insect
secretions, dust and small leaf trash resulting in higher levels of
stickiness and lower lint grades compared to programmed successive
picks. However the prolonged irrigation interval of 21 days resulted in
a lower stickiness level. Economic analysis indicated that benefits from
successive picks were higher by 15 and 5% for Barac (67)B and Barakat
90, respectively, compared to farmers' practice of late picking.
Proceedings of the Meetings of the National Crop Husbandry Committee 37th (2005) pp. 61-67
Proceedings of the Meetings of the National Crop Husbandry Committee - Sudan
Copyright©2008 National Crop Husbandry Committee
