Articles by Keyword: Emergence

Search results for Emergence

We found 18 results for you
  1. Evaluation of the effects of scorching caused by the directed application of a paraquat-containing herbicide mixture to the base of maize plants at various ages

    Evaluation of the effects of scorching caused by the directed application of a paraquat-containing herbicide mixture to the base of maize plants at various ages

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of herbicides which scorched the lower leaves of maize was compared in three seasons. The first season was relatively dry whilst the other two were wetter seasons. A mixture of cyanazine + atrazine + paraquat + a wetting...
  2. A comparison of seed vigour tests for maize (<em>Zea mays</em> L.)

    A comparison of seed vigour tests for maize (<em>Zea mays</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A number of seed vigour tests were conducted on two groups of maize seed lots. One group consisted of six seed lots of different cultivars while the other group consisted of six sub-lots of one cultivar, artificially aged for different...
  3. Patrone van opkoms van sekere onkruide in veldtoestande

    Patrone van opkoms van sekere onkruide in veldtoestande

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Opkomspatrone van 24 onkruidspesies, wat algemeen in bewerkte lande in somerreënvalgebiede voorkom, is ondersoek. Saad van onkruidspesies is gedurende die vorige herfs in die veld versamel. Een duisend sade van elk van die onkruide is ewekansig gekies uit die versamelde...
  4. The effects of various seed treatments on the germination, coleoptile length and emergence of South African winter wheats (<em>Triticum aestivum</em> L.)

    The effects of various seed treatments on the germination, coleoptile length and emergence of South African winter wheats (<em>Triticum aestivum</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The effect of four seed treatments and storage period of treated seed on the germination, coleoptile length and emergence of five winter wheat genotypes was investigated. The first trial was conducted under controlled conditions to determine the effect of triadimenol,...
  5. The effect of a diurnal period of supra-optimal temperature on the seed vigour of sunflower

    The effect of a diurnal period of supra-optimal temperature on the seed vigour of sunflower

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The daily maximum temperature in the upper 20 mm of sandy soils is often higher than 45°C on cloudless days during November, December and January in the summer rainfall region of South Africa. At these supra-optimal temperatures, sunflower seedling vigour...
  6. Phytotoxicity resulting from a combination of a pre-emergence herbicide and a pesticide seed dressing in maize (<em>Zea mays</em> L.)

    Phytotoxicity resulting from a combination of a pre-emergence herbicide and a pesticide seed dressing in maize (<em>Zea mays</em> L.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    This study was prompted by reports from maize producers, indicating phytotoxicity to occur when using pre-emergence herbicides in combination with seed dressings under cold conditions on sandy soils. A greenhouse experiment was conducted in which the insecticide imidacloprid and the...
  7. Effect of soil nutrient status on severity of seedling diseases and root rot of sorghum (<em>Sorghum bicolor</em>)

    Effect of soil nutrient status on severity of seedling diseases and root rot of sorghum (<em>Sorghum bicolor</em>)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    The hybrid NK283 was subjected to a range of nutrient element concentrations to determine their effect on predisposition of sorghum to seedling diseases and root rot. Emergence was not affected by soil nutrient status. Similarly N, P and K did...
  8. A comparison between hydroponics systems and pots for growing wheat in the greenhouse

    A comparison between hydroponics systems and pots for growing wheat in the greenhouse

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Growing wheat hydroponically for crossing block and germplasm multiplication purposes may hold emergence, yield and seed quality advantages compared to traditional planting methods. The aim of this study was to compare wheat planted in pots with soil to hydroponically grown...
  9. Predicting seedling emergence of cabbage and onion using vigour tests

    Predicting seedling emergence of cabbage and onion using vigour tests

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Predicting seedling emergence using standard and non-standard germination temperatures, standard accelerated ageing (AA) and saturated salt accelerated ageing (SSAA) tests, were investigated. Germinations were performed at temperatures of 10°, 20°, 20°/30° and 30°C for cabbage (Brassica oleracea var. capitata L.)...
  10. Early establishment performance of local and hybrid maize under two water stress regimes

    Early establishment performance of local and hybrid maize under two water stress regimes

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Maize (Zea mays L.) is the major grain crop in South Africa where most subsistence farmers still plant landraces. The objective of this study was to compare two landrace selections of maize with two hybrids popular among small-scale farmers in...