Studies On The Adaptability Of Domestic And Imported New Flue-cured Tobacco Varity In Middle Areae Of Henan Province

In order to select the new flue-cured tobacco of the best appearance ,and futher in vestigate the characteristics of full aroma tobacco in in Henan Province.The new varieties of domestic self-sterile tobacco of Yuyan- 5, Yuyan-7 and the new varieties of tobacco imported NC102, NC297, KRK26 and KRK28 had been tested through appearance growing trend,the agronomic characters, chemistry character, the economical character, the appearance quality and the sense organ comments attracts the quality. The local cultivars Zhongyan- 100 and NC89 were been contrast, in 2008 and2009.The main conclusions as follows:(1) Yuayan-5 have the shape tubular, elongated oval leaves and dark green leaves and all the growing period were strong. The indicators of agronomic traits were higher than NC89 and Zhongyan-100. The nicotine in the middle and upper leaves is more than in Zhongyan-100,fewer than in NC89 and the chlorine content of slightly is less than Yuyan-7 and is significantlyless than Zhongyan-100,except the leaf of upside; each part of the total sugar content is obvious,the total sugar of lower part leaf is more than other part and the total sugar content are lower than the control NC89 in the other part except the lower; The entire leaf tobacco contents more potassium than NC89; The potassium chloride is higher than Zhongyan -100 in every parts. The output and output value of the Yuyan-5 are higher than NC89 and Zhongyan -100, but the rate of the superior leaf is slightly less than NC89 and Zhongyan -100.The appeaerance feather of Yuyan-5 :the leaf color is majority orange, the structure still loosened, oil and more moderate identity,color is strong. The quality of smoking in different parts of Yuyan-5 is higher than NC89 and Zhongyan-100. Comprehensive comparison,Yuyan-5th , the best variety of the newcountry educating varieties in the middle areas of Henan Province,is better than NC89 and Zhongyan -100.(2) NC102 and NC297, KRK26 and the KRK28 appearance growing trend were similar. KRK26, KRK28 high obviously is higher than other various varieties and the effective number of leaves was more. Compares with the comparison, KRK26 and KRK28 have the variety stem, pitches in a big way, NC102 and NC297 then opposite.But NC102 and the NC297 present flower bud, the flowers of the mind opening hour two comparisons early the foot leaf, parietal lobe mature time actually it slightly is late; Big field period of duration two comparisons basic same.KRK26, the KRK28 big field period of duration is long also the smoke present flower bud evening, the foot leaf and the parietal lobe mature period is late.Various senate try the variety the smoke alkali content to be high upside the leaf, on KRK26, KRK28 the leaf total sugar content slightly are higher than the suitable content especially, other various spots in suitable scope.KRK28 return to original state sugar close being suitable scope; Various varieties total nitrogen content in the suitable scope, the potassium content is somewhat low; The chemical composition coordinative overall performance good variety is NC89, NC102 and KRK28.Various senate try the variety output to be higher than the comparison, the KRK28 output value are highest, in the comparison the smoke 100 even prices and the superior smoke ratio are highest, NC89 next best.On KRK28 the leaf leaf blade result is slightly dense, the identity is slightly thick, middle leaf oil many also upside leaf performance for rich fragrance, the sense organ comments attracts the result to be superior.From the appearance growing trend, the agronomic characters, the economical character, the outward appearance quality, the sense organ comment attract the result 4 aspect synthesis comparison, KRK28 are in Henan the tobacco area superior rich fragrance flue-cured tobacco substitution variety.