2 high-yielding cassava varieties

It is the second seed and HL-HL-S10 S11. Through testing, the two varieties are higher yielding, more than 50 tons / ha and especially not with broom disease appeared

After 7 years of research into the creation, selection and assessment, recent empirical Research Center Hung Loc (Institute of Agricultural Science for Southern Vietnam) have successfully defended before the council MOST (MARD) on SX recognition test 2 High-yield varieties HL-S10, HL-S11. Same HL-S10 (S10 Hung Loc) Well-bred varieties from 2 x KM140 KM146 by sexual method, seeds are sown complexes and dissociation into 215 lines, the scientists of the Centre for Research Hung Loc laboratory assessment, selected through 4 years and obtained HL-S10. Through SX in the provinces of Dong Nai, Tay Ninh, Ba Ria - Vung Tau, Tay Nguyen region, HL-S10 for fresh tuber yield about 50 tonnes / ha (conditions without irrigation). HL-S10 is also considered resistant varieties well with external conditions, such as diseases and limited. During follow-up are not forthcoming broom disease, a very dangerous disease damage on cassava. HL-S10 have time from planting to harvest about 8-9 months, of heading with short growing time, thus contributing to spread the good in the structure of the varieties being grown in popularity in the material area. Despite slightly lower rate compared starch varieties KM 94, but starch yield of HL-S10 has reached 12-13 tons / ha (KM 94 only 9-10 tonnes / ha), so worth collecting additional plans for farmers is 18-20 million / ha. HL-S11 Be varieties bred from combinations SM 937-26 x KM60. After 4 years bred from 164 different dissociation line, HL-S11 was chosen because the line has the best characteristics. The time from planting to harvest guaranteed proportion of the seed meal is approximately 10-11 months. Since 2010, these varieties were officers Center Hung Loc Experimental research collaboration with DARD southeastern provinces, the Central Highlands and cassava farmers has just performed SX assay. Through 3 trials and demonstration services, HL-S11 are high yielding and stable from 50-53 tons / ha. Resistant to common pests like mites, mealybugs, drought-tolerant and is not important broom disease. HL-S11 all is starch content to 28% during the same growing popularity is only 25-27%, even 27% just KM94. Starch yield of HL-S11 reaches over 14 tons / ha, while the HL-S10 is 13 tonnes / ha, the same KM 505, KM 140, KM 316 only 10-11 tonnes / ha. Reached 3-4 tons of starch / ha means increased income for cassava farmers around 30 million VND / ha. A profit figures extremely convincing. However HL-S11 also has limitations as a high trunk, bark brown bulb and tuber flesh color ivory. Despite being limited but Center Director Hung Loc experimental study, Nguyen Huu Hy said that the need for both short and long day like to have more convenient structure for growers and processing plants, contribute scattered, reducing pressure on labor, transport and processing the harvest. About color starch, technology of processing plants would overcome this problem. Promising Cultivation Department, said that 551 thousand hectares planted nationwide cassava (2014 figures). Highlands has the largest area of cassava (152.2 thousand ha), followed by the northern mountainous and midland (118.5 thousand ha), Southeast (97.7 thousand ha). The province covers an area as large as Gia Lai cassava (61.6 thousand ha), Xining (50.5 thousand ha), Kon Tum (37.6 thousand ha), Binh Thuan (32.7 thousand ha), Dak Lak (31.6 thousand ha), Son La (30.5 thousand ha), Phu Yen, Quang Ngai, Dak Nong and Binh Phuoc (19 thousand hectares), Thanh Hoa (18.4 thousand ha), Nghe An (16 , 4 thousand hectares) and Dong Nai (15.4 thousand ha). The average yield of cassava in the country reached 18.5 tons / ha, but higher than the world average yield (12.92 t / ha), but still far lower than India (31.43 tonnes / ha), Thailand (21.09 t / ha). In the goal of drafting cassava for biofuel SX, we have exceeded that goal in terms of area (550 thousand hectares planned), new productivity separate 18.5 / 23.0 t / ha, with 80% more goal oriented. So just to make a good impact and stitch selection, introduction good varieties to extend the SX, given average yields to 23 tonnes / ha and just on the planning area has grown, Vietnam may increase to 2.5 million tonnes of fresh cassava, the equivalent of nearly 700 thousand tons of dried cassava flour, bring more value 6,000 billion. Therefore high DCP favor the breeding and to quickly introduce high-yielding varieties, tolerant to pests out SX. A senior officer also expressed the view that there should be a program, or a project for cassava stronger, especially bred or selected from the line, good varieties, high yield, disease-enter broom internally to improve cassava productivity over the threshold of 25 tonnes (not by India), the value that the program has brought tens of thousands of billion. Mr. Phan Minh Bau, Deputy Director of Dong Nai Department of Agriculture and Rural Development and Mr Lam Van Tinh, Head of Agriculture (DARD Xining) appreciate this 2 varieties. Mr Bau said, after harvest cassava HL-S10, S11 HL-farmers use cuttings in the model to replicate the SX, the area has reached hundreds of hectares in Dong Nai, the actual number may be higher because the cassava very fine, a good variety, high-starch ratio is the preferred factory, the good tolerance to pests are common, not what farmers would not choose. He and his Treasure As said, broom disease has appeared in some old varieties, which have destroyed several hectares of households, but two varieties had not infected, so you need to recognize quickly to local propaganda and policy making mass SX. At Tay Ninh cassava irrigated area (high valve paddy land, with irrigation), HL-S11 productivity reached 60 tons / ha. Provincial DARD also suggest relevant units need additional early research, complete technical package as fertilizer, mechanized planting density ... to develop the potential of the cassava varieties, simultaneously MARD proposals for the project's high-yielding varieties, disease-SX to support farmers ....