Direct and Joint Effects of Genotype, Defoliation and Crop Density on the Yield of Three Inbred Maize Lines
Аутори
Ranković, DejanTodorović, Goran
Tabaković, Marijenka
Prodanović, Slaven
Boćanski, Jan
Delić, Nenad
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The aim of this study was to observe direct and joint effects of three factors (genotypes,
ecological environmental conditions and the applied crop density) on the level of defoliation intensity
and yield. Three inbred lines (G) of maize (G1–L217RfC, G2–L335/99 and G3–L76B004) were used
in the study. The trials were performed in two years (Y) (Y1 = 2016 and Y2 = 2017) and in two
locations (L) (L1 and L2) under four ecological conditions of the year–location interaction (E1–E4)
and in two densities (D1 and D2) (50,000 and 65,000 plants ha−1
). Prior to tasselling, the following
five treatments of detasseling and defoliation (T) were applied: T1—control, no leaf removal only
detasseling, T2–T5—removal of tassels and top leaves (from one to four top leaves). The defoliation
treatments had the most pronounced effect on the yield reduction in G1 (T1–Tn+1 . . . T5), p < 0.05.
The ecological conditions on yield variability were expressed under poor weather conditions (E3 and
E4), w...hile lower densities were less favorable for the application of defoliation treatments. The result
of joint effects of factors was the lowest grain yield (896 kg/ha) in G3 in the variant E3D1 for T2 and
the highest grain yield (11,389 kg/ha) in G3 in the variant E2D2 for T1. The smallest effect of the
defoliation treatment was on the kernel row number (KRN)
Кључне речи:
maize; detasseling; remove top leafs; location; year; propertiesИзвор:
Agriculture, 2021, 11, 6, 509-Издавач:
- Basel : Multidisciplinary Digital Publishing Institute (MDPI)
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200040 (Институт за кукуруз 'Земун поље', Београд-Земун) (RS-200040)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200116 (Универзитет у Београду, Пољопривредни факултет) (RS-200116)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200117 (Универзитет у Новом Саду, Пољопривредни факултет) (RS-200117)