Tuyển chọn giống mía (Saccharum officianum L.) có năng suất và chất lượng cao, phù hợp với điều kiện canh tác tỉnh Bình Dương

Abstract

The objective of this research was to select sugarcane varieties with yield > 60 tons/ha and commercial cane sugar (CCS) > 11, to recommend to put into production in Binh Duong province. This study was carried out in Phu An commune - Ben Cat town - Binh Duong province, from January 2020 to December 2020. The experiment was designed in a split plot (SPD) with 3 replications and 2 factors, including irrigation as main-plot factor with 2 levels as irrigated and rain-fed (non-irrigation) conditions, and sugarcane varieties as subplot factor with 10 VN varieties named VN14-13-4, VN14-22-5, VN14-23-13, VN14-37-2, VN14-41-8, VN14-45-3, VN14-49-6, VN14-74-1, VN14-87-11 and VN14-89-3. The controls consisted of drought tolerance VN84-4137 and drought sensitive KU60-1 varieties. The results showed that VN14-37-2, VN14-22-5, VN14-23-13, and VN14-87-11 were promising sugarcane varieties, suitable for cultivation conditions in Binh Duong province. Cane yield of these varieties ranged from 69.67 tons/ha to 75.50 tons/ha in irrigated condition. In the rain-fed condition the yields obtained were from 55.50 tons/ha to 61.17 tons/ha. Their average yield was above 62 tons/ha and equivalent to control VN84-4137. Sugar contents of these varieties were above 11.90 CCS. The corrected yield for 10 CCS ranged from 86.83 to 94.78 tons/ha in irrigated condition and 66.10 to 73.99 tons/ha in rain-fed condition.