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首页> 外文期刊>Crop Research >Growth and yield of grain amaranth (Amaranthus hypochondriacus L.) as influenced by nitrogen management under different moisture stress.
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Growth and yield of grain amaranth (Amaranthus hypochondriacus L.) as influenced by nitrogen management under different moisture stress.

机译：不同水分胁迫下氮素管理对籽粒a（Amaranthus hypochondriacus L。）的生长和产量的影响。

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An experiment was conducted at Regional Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat, India during rabi seasons of two consecutive years 2004-05 and 2005-06 to study the nitrogen management with bio-fertilizers in grain amaranth (Amaranthus hypochondriacus L.) under different moisture stress on sandy loam soils. Dry matter production per plant decreased with increase in moisture stress. No moisture stress exhibited significantly higher dry matter production per plant than that of with moisture stress at active vegetative stage and moisture stress at active vegetative and grain filling stages. Similarly, no moisture stress reflected its superiority in terms of CGR, RGR and NAR. Imposing stress at two growth stages (active vegetative and grain filling stages) showed poor performance at later growth period for these attributes. No moisture stress ranked at top recording higher values of plant height, leaf area per plant, leaf area duration, stem thickness, length of main inflorescence and number of lateral spikelets per plant. But moisture stress at active vegetative stage surpassed moisture stress at active vegetative and grain filling stages in terms of length of inflorescence and number of lateral spikelets. Grain and stover yield was significantly higher with no moisture stress. No moisture stress produced 16.58 and 22.07% higher grain yield over moisture stress at active vegetative stage and moisture stress at active vegetative and grain filling stages, respectively, in pooled data. For stover yield, also both these treatments behaved equally. Among the nitrogen management treatments, 60 kg N/ha integrating seed inoculation with Azotobacter liquid culture brought remarkable improvement in growth parameters viz., plant height, leaf area, LAD, NAR, CGR, RGR, stem thickness and yield attributes viz., length of main inflorescence and number of lateral spikelets which ultimately reflected to increase in higher grain and stover yield during both the years and in pooled data. It gave 12.39, 45.88 and 223.27% higher grain yield over N60, N40 and N0, respectively in pooled data.
机译：2004-05年和2005-06年连续两年在印度古吉拉特邦的Sardarkrushinagar Sardarkrushinagar的Sardarkrushinagar Dantiwada农业大学区域研究站进行了一项实验，研究了grain菜中生物肥料的氮肥管理（ Amaranthus沙壤土上不同水分胁迫下的软骨细胞）。随着水分胁迫的增加，每株植物的干物质产量下降。没有水分胁迫显示出每株植物的干物质产量显着高于处于活动性营养阶段的水分胁迫和处于活动性营养和籽粒灌浆阶段的水分胁迫。同样，没有水分胁迫反映了其在CGR，RGR和NAR方面的优势。在两个生长阶段（活跃的植物生长和籽粒灌浆阶段）施加压力显示出在这些属性的较晚生长阶段表现不佳。没有水分胁迫排名最高，记录了较高的植物高度，每株植物的叶面积，叶面积的持续时间，茎粗，主要花序的长度和每株植物的侧生小穗数。但就花序长度和侧生小穗数而言，活跃营养期的水分胁迫超过活跃营养期和籽粒灌浆阶段的水分胁迫。没有水分胁迫，谷物和秸秆产量明显更高。在汇总数据中，没有水分胁迫分别比处于活动性营养阶段的水分胁迫和处于处于活动性营养阶段和灌浆阶段的水分胁迫分别高出16.58和22.07％。对于秸秆产量，这两种处理的表现均相同。在氮管理处理中，将种子接种与固氮细菌液体培养相结合的60 kg N / ha可以显着改善生长参数，即株高，叶面积，LAD，NAR，CGR，RGR，茎粗和产量属性，即长度主要花序和侧生小穗数量的变化，这最终反映出多年来和汇总数据中较高的谷物和秸秆产量的增加。在汇总数据中，它分别比N 60 ，N 40 和N 0 高出12.39、45.88和223.27％。

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