首页> 外文学位 >Yield, yield components and nitrogen partitioning in bambara groundnut (Vigna subterranea), common bean (Phaseolus vulgaris), and cowpea (Vigna unguiculata) grown under stress and non-stress soil moisture conditions.
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Yield, yield components and nitrogen partitioning in bambara groundnut (Vigna subterranea), common bean (Phaseolus vulgaris), and cowpea (Vigna unguiculata) grown under stress and non-stress soil moisture conditions.

机译:在胁迫和非胁迫土壤水分条件下生长的斑巴拉地花生(Vigna subterranea),普通豆(Phaseolus vulgaris)和cow豆(Vigna unguiculata)的产量,产量组成和氮分配。

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摘要

Globally, moisture stress is a major constraint in agricultural production resulting in millions of dollars in economic losses. A study was conducted in the rainshelter at the Kellogg Biological Research Station, Hickory Corners, Michigan, in 1995 and 1996 to evaluate the effect of moisture stress on yield, yield components and N partitioning in Bambara groundnut (Vigna subterranea) genotypes ZVS530 and ZVS564; common bean (Phaseolus vulgaris) genotypes Carioca, Natal Sugar and T3147-2; and cowpea (Vigna unguiculata) genotypes IT82D-889 and 475/89. The experiment was a split-plot in a randomized complete block design with moisture status as the main effect and species as the sub-plot. Moisture stress reduced yield by as much as 79% in common bean and 46% in cowpea. Cowpea genotypes aborted more seeds per pod than the other species. Significant species differences were observed in seed weight, number of seeds per pod, number of pods per plant, and in N concentration of the different plant parts. Moisture stress did not significantly affect N concentration in any structures.
机译:在全球范围内,水分胁迫是农业生产的主要障碍,导致数百万美元的经济损失。 1995年和1996年,在密歇根州希科里角的凯洛格生物研究站的防雨棚中进行了一项研究,以评估水分胁迫对班巴拉花生(Vigna亚地下)基因型ZVS530和ZVS564的产量,产量构成和氮分配的影响。普通豆(菜豆)基因型Carioca,纳塔尔糖和T3147-2;和cow豆(Vigna unguiculata)基因型为IT82D-889和475/89。实验是采用随机完整块设计的分割图,其中水分状态为主要影响,物种为子图。水分胁迫使普通豆产量降低了79%,而79豆则降低了46%。豆基因型使每个豆荚中的种子流产比其他物种更多。在种子重量,每荚的种子数,每株植物的荚数以及不同植物部位的氮浓度中观察到明显的物种差异。水分胁迫并未显着影响任何结构中的氮浓度。

著录项

  • 作者

    Katsvairo, Tawainga Witman.;

  • 作者单位

    Michigan State University.;

  • 授予单位 Michigan State University.;
  • 学科 Agronomy.;Plant biology.
  • 学位 M.S.
  • 年度 1999
  • 页码 97 p.
  • 总页数 97
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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