scholarly journals The Effect of Different Planting Date on Growth of Zea : II. On growth and grain yield under normal spacing.

1965 ◽  
Vol 33 (4) ◽  
pp. 450-453
Author(s):  
keishi URANO ◽  
Susumu SAKAGUCHI
Keyword(s):  
Grain Yield ◽  
Planting Date ◽  
Normal Spacing

Planting Date and Cultivar Effects on Grain Yield in Dryland Corn Production

2009 ◽  
Vol 101 (1) ◽  
pp. 91-98 ◽  
Author(s):  
Alpha Y. Kamara ◽  
Friday Ekeleme ◽  
David Chikoye ◽  
Lucky O. Omoigui
Keyword(s):  
Grain Yield ◽  
Planting Date ◽  
Corn Production

scholarly journals Effect of Planting Date, Seed Treatment, and Cultivar on Plant Population, Sudden Death Syndrome, and Yield of Soybean

Plant Disease ◽  
2016 ◽  
Vol 100 (8) ◽  
pp. 1735-1743 ◽  
Author(s):  
Yuba R. Kandel ◽  
Kiersten A. Wise ◽  
Carl A. Bradley ◽  
Albert U. Tenuta ◽  
Daren S. Mueller
Keyword(s):  
Sudden Death ◽  
Grain Yield ◽  
Seed Treatment ◽  
Maximum Yield ◽  
Planting Date ◽  
Plant Population ◽  
Disease Index ◽  
Sudden Death Syndrome ◽  
Yield Response ◽  
Date Seed

A 2-year study was conducted in Illinois, Indiana, Iowa, and Ontario in 2013 and 2014 to determine the effects of planting date, seed treatment, and cultivar on plant population, sudden death syndrome (SDS) caused by Fusarium virguliforme, and grain yield of soybean (Glycine max). Soybean crops were planted from late April to mid-June at approximately 15-day intervals, for a total of three to four plantings per experiment. For each planting date, two cultivars differing in SDS susceptibility were planted with and without fluopyram seed treatment. Mid-May plantings resulted in higher disease index compared with other planting dates in two experiments, early June plantings in three, and the remaining six experiments were not affected by planting date. Soil temperature at planting was not linked to SDS development. Root rot was greater in May plantings for most experiments. Resistant cultivars had significantly lower disease index than the susceptible cultivar in 54.5% of the experiments. Fluopyram reduced disease severity and protected against yield reductions caused by SDS in nearly all plantings and cultivars, with a maximum yield response of 1,142 kg/ha. Plant population was reduced by fluopyram seed treatment and early plantings in some experiments; however, grain yield was not affected by these reductions. Yields of plots planted in mid-June were up to 29.8% less than yields of plots planted in early May. The lack of correlation between early planting date and SDS severity observed in this study indicates that farmers do not have to delay planting in the Midwest to prevent yield loss due to SDS; cultivar selection combined with fluopyram seed treatment can reduce SDS in early-planted soybean (late April to mid May).

scholarly journals Soybean maturity group and planting date influence grain yield and nitrogen dynamics

age ◽  
2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Carrie C. Ortel ◽  
Trenton L. Roberts ◽  
Kyle A. Hoegenauer ◽  
Larry C. Purcell ◽  
Nathan A. Slaton ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nitrogen Dynamics ◽  
Planting Date ◽  
Maturity Group

Influence of planting date and environment on Oklahoma wheat grain yield trend from 1963 to 1995

1998 ◽  
Vol 78 (1) ◽  
pp. 71-77 ◽  
Author(s):  
F. M. Epplin ◽  
T. F. Peeper
Keyword(s):  
Grain Yield ◽  
Linear Trend ◽  
Moving Average ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Planting Date ◽  
Wheat Grain ◽  
Explanatory Variables ◽  
The Past ◽  
Key Words Wheat

The five-year moving average (5YRMA) wheat (Triticum aestivum L.) grain yield per harvested hectare has declined by more than 18% over the past decade in Oklahoma. By contrast, world wheat yields have increased steadily over the same period. The Oklahoma wheat yield trend during the past decade is inconsistent with expectations. The objective of the research was to determine why the 5YRMA wheat grain yield per harvested hectare did not increase in Oklahoma during the past decade. Five types of potential explanatory variables were investigated: structural change (including government programs), fertilizer use, proportion grazed, planting date and environment. Regression analysis was used to determine that the consequences of improvements in technology, research and education programs, as measured by a linear trend variable, were positive. However, during the past decade, these advancements were overwhelmed by changes in planting date and environmental factors. Key words: Wheat, yield, trend, planting date, environment

scholarly journals Optimal Planting Date of Kernza Intermediate Wheatgrass Intercropped with Red Clover

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2227
Author(s):  
Oluwakorede Olugbenle ◽  
Priscila Pinto ◽  
Valentin D. Picasso
Keyword(s):  
Grain Yield ◽  
Nutritive Value ◽  
Management Practice ◽  
Red Clover ◽  
Planting Date ◽  
Forage Yield ◽  
Nitrogen Transfer ◽  
Yield Data ◽  
Intermediate Wheatgrass ◽  
Harvest Year

Intermediate wheatgrass (IWG) is a new perennial dual-use crop for grain and forage with growing interest among farmers. Intercropping IWG with red clover may increase yield and nutritive value through nitrogen transfer. IWG and red clover planting timing can affect grain and forage yield, and there has not been previous research on this management practice. At two locations (Arlington and Lancaster, WI, USA) a factorial experiment was established two years with two factors: (1) IWG planting date (August through October, and April) and (2) red clover planting season (in the fall with IWG or frost seeded in the next spring). Yield data were collected for two subsequent years. Grain yield was maximized at 515 kg ha−1 and 423 kg ha−1 at Arlington and Lancaster when planted by 26 August and 13 September, respectively. Planting date influenced grain yields in the first harvest year but not in the second. Seeding red clover in the spring increased IWG and red clover biomass compared to seeding it in the fall. In Wisconsin, planting IWG by early September at the latest and planting red clover in the spring is recommended to maximize grain yield.

Planting Date and Nitrogen Effects on Grain Yield and Protein Content of Spring Wheat

Crop Science ◽  
2007 ◽  
Vol 47 (1) ◽  
pp. 36-44 ◽  
Author(s):  
K. D. Subedi ◽  
B. L. Ma ◽  
A. G. Xue
Keyword(s):  
Grain Yield ◽  
Protein Content ◽  
Spring Wheat ◽  
Planting Date

Planting Date Influence on Dual-Purpose Winter Wheat Forage Yield, Grain Yield, and Test Weight

2003 ◽  
Vol 95 (5) ◽  
pp. 1179-1188 ◽  
Author(s):  
Ishrat Hossain ◽  
Francis M. Epplin ◽  
Eugene G. Krenzer
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Planting Date ◽  
Forage Yield ◽  
Test Weight ◽  
Dual Purpose

scholarly journals Identification of stable genotypes and genotype by environment interaction for grain yield in sorghum (Sorghum bicolor L. Moench)

2018 ◽  
Vol 17 (1) ◽  
pp. 81-86 ◽  
Author(s):  
Massaoudou Hamidou ◽  
Oumarou Souleymane ◽  
Malick N. Ba ◽  
Eric Yirenkyi Danquah ◽  
Issoufou Kapran ◽  
...  
Keyword(s):  
Grain Yield ◽  
Genotype By Environment Interaction ◽  
Planting Date ◽  
Environment Interaction ◽  
Gge Biplot ◽  
Food Crop ◽  
Planting Dates ◽  
Genotype By Environment ◽  
Biplot Analysis ◽  
Sorghum Bicolor L

AbstractSorghum is a staple food crop in Niger and its production is constrained by sorghum midge and the use of low yielding, local sorghum varieties. To improve sorghum productivity, it is crucial to provide farmers with high yielding sorghum cultivars that are resistant to midge. We evaluated 282 genotypes in four environments of Niger Republic. Alpha (0.1) lattice with two replications was the experimental design. Genotype and genotype by environment (GGE) biplot analysis was used to study grain yield (GY) stability and G × E interactions. The results revealed that two distinct mega environments were present. Genotype L232 was the best genotype for GY in the first planting date at Konni and the first and second planting dates (PDs) at Maradi. Genotype L17 was the best for GY in the second PD at Konni. The second PD at Konni was the most discriminating environment while the first PD at Konni is suitable for selecting widely adapted genotypes for GY.

Evaluating planting date and variety management strategies for adapting winter wheat to climate change impacts in arid regions

2017 ◽  
Vol 9 (6) ◽  
pp. 846-863 ◽  
Author(s):  
Iman Hesam Arefi ◽  
Mehri Saffari ◽  
Rooholla Moradi
Keyword(s):  
Climate Change ◽  
Winter Wheat ◽  
Grain Yield ◽  
Arid Regions ◽  
Climate Change Impacts ◽  
Planting Date ◽  
Adaptation Strategies ◽  
Wheat Grain ◽  
Content Type ◽  
Early Maturing

Purpose The purpose of this study is to simulate the climate change impacts on winter wheat production and evaluate the possibilities of using various varieties and shifting planting date as two climate change adaptation strategies in Kerman Province, Iran. Design/methodology/approach Two types of global circulation model and three scenarios for three periods were used. Daily climatic parameters were generated by LARS-WG (Long Ashton Research Station-Weather Generator). The CERES-wheat model was used to simulate future winter wheat growth, development and production. Findings The results showed that CO2 had no effect on the phenology of winter wheat, and the negative impact of temperature on the grain yield was higher than the positive effect of CO2 enrichment. The length of the reproductive growth period of the winter wheat was significantly shortened as affected by the negative impacts of rise in temperature. The simulated results indicated that the grain yield of common (medium maturing) variety of winter wheat will decline, ranging from −0.27 to −18.71 per cent according to future climate changes. Adaptation strategies showed that the early maturing variety had a higher and more stable grain yield under climate change conditions than medium and delayed maturing varieties. Earlier planting date (20 October) increased wheat grain yield under future climatic conditions than common (November 5) planting date. In reverse, later planting (November 20) would accelerate harmful effects of climate change on wheat grain yield. Originality/value The results highlighted the potential of early maturing variety and early planting date as the appropriate agronomical approaches for mitigating harmful impacts of climate change on winter wheat production in arid regions.

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