SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION
Corn plants (Dekalb 805) were grown in nutrient solutions supplied with adequate (156.2 uM S) or inadequate (0.6.0 or 15.62 uM s) sulphur. The shoots and roots were analysed for nitrate-nitrogen (NO -N) content as well as for sulphate-sulphur (SO4-S), total sulphur and organic sulphur. Also, the eff...
Збережено в:
| Автори: | , , |
|---|---|
| Формат: | Online |
| Мова: | Англійська |
| Опубліковано: |
The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria.
2020
|
| Предмети: | |
| Онлайн доступ: | https://ija.oauife.edu.ng/index.php/ija/article/view/504 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| _version_ | 1810820092057878528 |
|---|---|
| author | OPUTA, C. O. RENDIG, V. V. McCOMB, E. A. |
| author_facet | OPUTA, C. O. RENDIG, V. V. McCOMB, E. A. |
| author_sort | OPUTA, C. O. |
| collection | OJS |
| description | Corn plants (Dekalb 805) were grown in nutrient solutions supplied with adequate (156.2 uM S) or inadequate (0.6.0 or 15.62 uM s) sulphur. The shoots and roots were analysed for nitrate-nitrogen (NO -N) content as well as for sulphate-sulphur (SO4-S), total sulphur and organic sulphur. Also, the effect of varying the nitrogen supply (from 3.57 to 7.14 uM N) was studied. The activity of nitrate reductase in the leaves of sulphur deficient (-S) and sulphur adequate (+S) plants was determined.
In (-S) corn leaves, the NO3-N content was relatively low (.42% dry wt) and the nitrate reductase activity was also low (0.48, u moles NO2, (g fr wt.)-1 hr-l). In contrast, (+S) corn leaves accumulated more NO3-N (.64% dry wt.) and had a correspondingly higher reductase activity (5.64 u moles NO3-(g fr wt.)-1 hr-1). The soluble protein (expressed in mg. pa g. fresh weight) in (+S) corn leaves was threefold the amount in sulphur deficient corn leaves. |
| format | Online |
| id | oai:ojs2.ija.oauife.edu.ng:article-504 |
| institution | My University |
| language | eng |
| publishDate | 2020 |
| publisher | The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. |
| record_format | ojs |
| spelling | oai:ojs2.ija.oauife.edu.ng:article-5042020-10-07T11:52:41Z SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION OPUTA, C. O. RENDIG, V. V. McCOMB, E. A. Sulphur, Nutrition, Corn Plant, Nitrate, sulphate-sulphur, soluble protein Corn plants (Dekalb 805) were grown in nutrient solutions supplied with adequate (156.2 uM S) or inadequate (0.6.0 or 15.62 uM s) sulphur. The shoots and roots were analysed for nitrate-nitrogen (NO -N) content as well as for sulphate-sulphur (SO4-S), total sulphur and organic sulphur. Also, the effect of varying the nitrogen supply (from 3.57 to 7.14 uM N) was studied. The activity of nitrate reductase in the leaves of sulphur deficient (-S) and sulphur adequate (+S) plants was determined. In (-S) corn leaves, the NO3-N content was relatively low (.42% dry wt) and the nitrate reductase activity was also low (0.48, u moles NO2, (g fr wt.)-1 hr-l). In contrast, (+S) corn leaves accumulated more NO3-N (.64% dry wt.) and had a correspondingly higher reductase activity (5.64 u moles NO3-(g fr wt.)-1 hr-1). The soluble protein (expressed in mg. pa g. fresh weight) in (+S) corn leaves was threefold the amount in sulphur deficient corn leaves. The Faculty of Agriculture Obafemi Awolowo University, Ile-Ife, Nigeria. 2020-10-07 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://ija.oauife.edu.ng/index.php/ija/article/view/504 Ife Journal of Agriculture; Vol. 13 No. 1 (1991): Ife Journal of Agriculture; 60-67 0331-6351 eng https://ija.oauife.edu.ng/index.php/ija/article/view/504/385 Copyright (c) 2020 Ife Journal of Agriculture |
| spellingShingle | Sulphur, Nutrition, Corn Plant, Nitrate, sulphate-sulphur, soluble protein OPUTA, C. O. RENDIG, V. V. McCOMB, E. A. SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION |
| title | SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION |
| title_full | SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION |
| title_fullStr | SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION |
| title_full_unstemmed | SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION |
| title_short | SULPHUR NUTRITION OF THE CORN PLANT: I. EFFECT ON THE NITRATE - NITROGEN FRACTION |
| title_sort | sulphur nutrition of the corn plant i effect on the nitrate nitrogen fraction |
| topic | Sulphur, Nutrition, Corn Plant, Nitrate, sulphate-sulphur, soluble protein |
| topic_facet | Sulphur, Nutrition, Corn Plant, Nitrate, sulphate-sulphur, soluble protein |
| url | https://ija.oauife.edu.ng/index.php/ija/article/view/504 |
| work_keys_str_mv | AT oputaco sulphurnutritionofthecornplantieffectonthenitratenitrogenfraction AT rendigvv sulphurnutritionofthecornplantieffectonthenitratenitrogenfraction AT mccombea sulphurnutritionofthecornplantieffectonthenitratenitrogenfraction |