Responses of onion growth and yield to different planting dates and land management practices
Laen...
Kuupäev
2021
Kättesaadav alates
Autorid
Salari, H.
Antil, R.S.
Saharawat, Y.S.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
Local varieties of onion (Allium cepa L.) are believed to be well adopted to
agroecological conditions of their respective growing region but their lower productivity is a
concern to be addressed. The variety ‘Safid e Paisaye’ was selected for this investigation due to
its long storability and higher market demand. The present study was carried out at Agriculture
Research Farm of Kabul University to study the influence of land management practices and
planting dates on growth and yield of onion. Different agronomic traits including number of
leaves per plant, leaf length, leaf area per plant, leaf area index, normalized difference vegetation
index (NDVI), maturity period, marketable yield and total yield were studied in these trials. The
recorded data were statistically analysed with R software. The planting dates had significant
influence on growth and yield of onions. At 90 days after sowing, the highest number of leaves
per plant (7.18), leaf length (30.07 cm), leaf area per plant (277.43 cm2
), leaf area index (0.93)
and NDVI (0.29) were recorded for the first planting date (10th May). Similarly, the longest
maturity period (176.44 days) and highest marketable yield (37.01 t ha-1
) and total yield
(40.08 t ha-1
) were also observed under the first planting date. Land management practices did
not have significant effect on growth and maturity period of onions. However, the marketable
yield was influenced by tillage depth and land preparation. The deep tillage and flatbed recorded
highest marketable yield of 38.58 t ha-1
and 26.9 t ha-1
, respectively. The results of the study
indicate that, early planting was more appropriate to get vigorous and high yielding onions. The
deep ploughed flatbeds were appropriate to get higher marketable yield of onions.
Kirjeldus
Received: September 10th, 2021 ; Accepted: November 3rd, 2021 ; Published: November 15th, 2021 ; Correspondence: h.salari@yahoo.com
Märksõnad
Allium cepa L., growth response, Normalized Difference Vegetation Index (NDVI), planting date, tillage depth, yield response, articles