Naslov
The influence of irrigation on growth and development of potted Catharanthus roseus

Autori
Kušen, Mihael ; Prebeg, Tatjana ; Erceg, Lucija ; Zovko, Monika ; Poje, Miroslav ; Židovec, Vesna

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts: 58th Croatian & 18th International Symposium on Agriculture / Carović-Stanko, Klaudija ; Širić, Ivan - Zagreb : Agronomski fakultet Sveučilišta u Zagrebu, 2023, 102-102

Skup
58th Croatian & 18th International Symposium on Agriculture

Mjesto i datum
Dubrovnik, Hrvatska, 11.02.2023. - 17.02.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Madagascar periwinkle, deficit irrigation, ornamental quality, plant production

Sažetak
The aim of this study was to analyze the morphological and anatomical responses of potted Madagascar periwinkle to deficit irrigation and to evaluate the possibility of producing commercial quality plants with less water use. Seedlings of Madagascar periwinkle (Catharanthus roseus (L.) G. Don ‘SunStorm Red’) were subjected to three irrigation treatments: container capacity (control), 80% of the control (mild deficit irrigation) and 60% of the control (moderate deficit irrigation). Deficit irrigation (DI) treatments caused a decrease in stem length and diameter, plant width, number of lateral branches with visible flower buds and the size of the leaf blade, but did not affect leaf thickness and the number of nodes formed before flowering. Leaf chlorophyll content index (CCI) increased with increasing water deficit and, in moderate DI treatment, the leaves were noticeably darker green than in the control plants. DI treatments also led to a decrease in the size of the stomata, on both sides of the leaf, and to an increase in the stomatal density on the abaxial side of the leaf. Water deficit did not considerably affect the start of flowering, but it led to a decrease in flower diameter and, in the moderate DI treatment, lowered the number of flower buds per plant. Mild DI did not significantly impair ornamental quality of the plants and therefore could be applied in production of Madagascar periwinkle to reduce water consumption.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA