植物营养与肥料学报2011，Vol.17Issue(1)：147-153,7.
不同氮效率茄子基因型及其杂种F1的氮素吸收特性
Characteristics of nitrogen uptake in eggplant genotypes with different nitrogen efficiency and their hybrid F1s
摘要
Abstract
In order to elucidate the heterosis on nitrogen uptake in the F1 hybrids, the nitrogen (N) absorption characteristics of the eggplant genotypes with different N efficiencies and their hybrid F1 s were studied. Under normal and low N stress conditions, root volume, root dry weight, N uptake, root activity, nitrate reductase activity and glutamine synthetase activity of leaves were studied in three typical eggplant genotypes with different N efficiencies and their hybrids. Compared with low N efficiency genotypes(L) ,the root volume, root dry weight, root activity, total N uptake per plant, nitrate reductase activity and glutamine synthetase activity of the cultivars with high N efficiency (H1 and H2) are all higher. In the three F1 hybrids, F1 -1 (L × H1 ), F1 -2 (L × H2), and F1 -3 (H1 × H2 ), the root volume, root dry weight , root activity, nitrate reductase activityof leaves, glutamine synthetase activity of leaves and total N uptake per plant of Hm and Hp are mostly positive, in which the hybrid F1 -3 has the best heterosis. Using the heterosis on N uptake in the F1 hybrids, it will be useful to improve the N metabolism and increase the N efficiency of the plant.关键词
茄子/氮效率/杂种优势/氮素吸收分类
园艺学与植物营养学引用本文复制引用
田松,银婷,陈雪平,王彦华,罗双霞,申书兴..不同氮效率茄子基因型及其杂种F1的氮素吸收特性[J].植物营养与肥料学报,2011,17(1):147-153,7.基金项目
科技部成果转化基金项目(05EFN211300022) （05EFN211300022）
河北省科技攻关项目(06220110D) （06220110D）
河北省农开办项目资助. （）
