The effect of crop density on maize grain yield
| Autor: | Aleksandra Stanojković-Sebić, Violeta Mandić, Violeta Caro-Petrovic, Zorica Bijelić, Zorica Tomic, Aleksandar Stanojković, Vesna Krnjaja |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
2. Zero hunger Applied Mathematics General Mathematics Crop yield grain yield 04 agricultural and veterinary sciences 15. Life on land Biology maize 01 natural sciences Crop Agronomy crop density morphological traits 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Grain yield lcsh:Animal culture 010606 plant biology & botany lcsh:SF1-1100 |
| Zdroj: | Biotechnology in Animal Husbandry Biotechnology in Animal Husbandry (2016) 32(1):83-90 Biotechnology in Animal Husbandry, Vol 32, Iss 1, Pp 83-90 (2016) |
| ISSN: | 1450-9156 |
| Popis: | The aim of this investigation was to estimate the effects of crop density on the plant height (PH), ear height (EH), leaf number per plant (LN), ear length (EL), number of rows per ear (NRE), number of grain per row (NGR), number of grain per ear (NGE), grain weight per ear (GWE), cob weight (CW), 1000-grain weight (1000-GW), ear diameter (ED) and grain yield (GY) in staygreen maize hybrid Dijamant 6 (FAO maturity group 600). Three crop densities (51020 plants ha-1, 59524 plants ha-1 and 71429 plants ha-1) were tested. The field experiment was carried out during 2006 and 2007 at Srem region (Putinci: latitude 44° 59' 19' N; longitude 19° 58' 11' E). Plots were organized as completely randomized block system design in four replications. PH (284.3 cm), EH (119.9 cm), LN (13.9), EL (20.8 cm), GWE (232.5 g), CW (56.4 g), 1000-GW (378.4 g) and GY (13.56 t ha-1) were significantly higher in 2006 (favorable climatic conditions) than in 2007 (258.5 cm, 112.8 cm, 13.2, 17.9 cm, 192.9 g, 46.9 g, 232.7 g and 11.50 t ha-1, respectively). Increasing crop density significantly increased the PH, EH and GY, and significantly decreases the EL, NGR, NGE, GWE, CW and 100-GW. The crop density of 71429 plants ha-1 is the optimal for growing this hybrid in Srem region. On that crop density hybrid more efficiently used available resources and achieved the highest grain yield. Cilj ovog istraživanja bio je da se ispita uticaj gustine biljaka na visinu biljke (VB), visinu klipa (VK), broj listova po biljci (BL), dužinu klipa (DK), broj redova zrna na klipu (BRZ), broj zrna u redu (BZR), broj zrna po klipu (BZK), prinos zrna po klipu (PZK), masu kočanke (MK), masu 1000 zrna (MHZ), prečnik klipa (PK) i prinos zrna (PZ) u hibrida Dijamant 6 (FAO 600 grupa zrenja). Tretmani su bili: 51020 biljaka ha-1, 59524 biljaka ha-1 i 71429 biljaka ha-1. Poljski ogledi izvedeni su 2006. i 2007. godine u regionu Srema (Putinci 44° 59' 19' SGŠ, 19° 58' 11' IGD). Ogledi su postavljeni po slučajnom blok sistemu u četiri ponavljanja. VB (284.3 cm), VK (119.9 cm), BL (13.9), DK (20.8 cm), PZK (232.5 g), MK (56.4 g), MHZ (378.4 g) i PZ (13.56 t ha-1) bili su značajno veći u 2006 godini (povoljni klimatsku uslovi) nego u 2007. (258.5 cm, 112.8 cm, 13.2, 17.9 cm, 192.9 g, 46.9 g, 232.7 g i 11.50 t ha-1). Povećanje gustine useva značajno je povećalo VB, VK i PZ, i značajno smanjilo DK, BZR, BZK, PZK, MK i MHZ. Gustina useva 71429 biljaka ha-1 je optimalna za gajenje ovog hibrida u regionu Srema. Na toj gustini hibrid najefikasnije koristi raspoložive resurse i postiže najveći prinos zrna. |
| Databáze: | OpenAIRE |
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