Effect of varying seeding date on crop development, yield and yield components in canaryseed

2000 ◽  
Vol 80 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Perry R. Miller
Keyword(s):  
Drought Stress ◽  
Yield Components ◽  
Yield Reduction ◽  
Summer Drought ◽  
Degree Days ◽  
Hordeum Vulgare L ◽  
Seeding Date ◽  
Crop Development ◽  
Yield And Yield Components ◽  
Phalaris Canariensis

The effects of varying seeding date on crop development, yield and yield components in canaryseed (Phalaris canariensis L.) have not been previously reported. In 1996 and 1997, a seeding date study was conducted at Swift Current, SK, which included barley (Hordeum vulgare L.), canaryseed and wheat (Triticum aestivum L.) sown at three dates in separate tilled fallow and untilled wheat stubble sites. Terminal summer drought occurred in both years of this experiment. Cumulative degree days (DD0) to reach maturity did not differ significantly among seeding dates for barley, or for wheat in 1997, while cumulative degree days to reach maturity decreased by 60 DD0 with delayed seeding for wheat in 1996. In contrast, cumulative degree days to reach maturity in canaryseed increased by 70 DD0 in 1996 and by 90 DD0 in 1997 with delayed seeding. Delaying seeding from the early to the late date decreased canaryseed yield by 29%, while barley and wheat yields decreased only 14 and 11%, respectively. Panicle density in canaryseed was reduced 24% between the early and late seeding dates, while barley and wheat spike densities were reduced only 2 and 6%, respectively. The large yield reduction in canaryseed was likely due to slowed crop development with delayed seeding, which intensified late-season drought stress. The slowed crop development with delay in seeding date in canaryseed may be due to vernalization requirement in this crop. In the semiarid prairie region, canaryseed should be seeded early to maintain a rapid crop development rate to minimize yield loss due to drought stress. Key words: Canaryseed, Phalaris canariensis L., seeding date, drought stress

scholarly journals Effects of Iron and Zinc Spray on Yield and Yield Components of Wheat (Triticum Aestivum L.) in Drought Stress

2013 ◽  
Vol 46 (1) ◽  
pp. 23-32 ◽  
Author(s):  
F. Monjezi ◽  
F. Vazin ◽  
M. Hassanzadehdelouei
Keyword(s):  
Drought Stress ◽  
Seed Yield ◽  
Yield Components ◽  
Block Design ◽  
Control Treatment ◽  
Yield Reduction ◽  
Irrigation Level ◽  
Seed Filling ◽  
Yield And Yield Components ◽  
Iron And Zinc

Abstract In hot and arid regions, drought stress is considered as one of the main reasons for yield reduction. To study the effect of drought stress, iron and zinc spray on the yield and yield components of wheat, an experiment was carried out during the crop seasons of 2010 and 2011 on Shahid Salemi Farm in Ahwaz as a split factorial within randomized complete block design with three replications. The main plots with irrigation factor and three levels were considered: Level A) full irrigation, Level B) stopping irrigation at pollination step, and Level C) stopping irrigation at the seed filling stage. Subsidiary plots were considered with and without iron and zinc spray. Influencing the seed filling process, in interaction with iron, wich is an important leaf's chlorophyll cation, zinc increased the seed yield. The drought stress reduced the thousand kernels weight (TKW) and the number of seeds per spike increased about 24% and 8.5% more than the one of control treatment, respectively. Using iron, as compared with control treatment, causes the increase of thousand kernels weight from 45.71 to 46.83 grams and the increase of spike from 49.51 to 51.73. Zinc spray increased seed yield and thousand kernels weight. The results obtained from the present research showed that iron and zinc spray has fairly improved the effects caused by drought stress.

EFFECT OF A LEAF-SPOTTING GENE ON THE YIELD AND YIELD COMPONENT DEVELOPMENT OF BARLEY IN NORTHERN CANADA

1978 ◽  
Vol 58 (1) ◽  
pp. 21-28 ◽  
Author(s):  
D. G. FARIS
Keyword(s):  
Yield Components ◽  
Leaf Size ◽  
Yield Component ◽  
Yield Potential ◽  
Yield Reduction ◽  
Seeding Rate ◽  
Hordeum Vulgare L ◽  
Yield And Yield Components ◽  
Before And After ◽  
Component Development

Two isogenic lines, normal and spotted-leaf, of Awnless Atlas barley (Hordeum vulgare L.) were grown at four seeding rates for 3 yr at Beaverlodge in northern Alberta. Rate and year caused highly significant differences in yield and yield components. However, seeding rate had little effect on reductions in yield and yield components caused by the leaf-spotting gene. Although leaf spotting appeared to cause little reduction in the photosynthetic area before heading, the reduction was enough to decrease head, plant and leaf size. The heavy leaf spotting that developed after heading contributed to a 22% yield reduction. Compared with a similar study at Davis, California, the results of the present study suggest that the longer photoperiod and higher temperature at Beaverlodge prior to heading depressed yield potential and increased the adverse effect of the leaf-spotting gene. The results suggest that leaf area, both before and after anthesis, is important for yield development and expression.

EFFECT OF BOTANICALS SEED PRIMING ON YIELD AND YIELD COMPONENTS OF MALT BARLEY (Hordeum vulgare L.)

2021 ◽  
Vol 9 (1) ◽  
pp. 12-24
Author(s):  
Abebe Megersa ◽  
◽  
Bembel Tadese ◽  
Keyword(s):  
Yield Components ◽  
Seed Priming ◽  
Distilled Water ◽  
Ginger Extract ◽  
Hordeum Vulgare L ◽  
Plant Materials ◽  
Enhancing Effect ◽  
Seed Dressing ◽  
Yield And Yield Components ◽  
Malt Barley

Application of synthetic compounds seed dressing enhancing yield and yield components of crops but it is becoming very expensive for resource poor farmers beside this; these also have a negative effect on the natural environment. Thus, the current field and laboratory experiment was conducted during the 2018 main cropping season for testing the potential of locally available plant extracts; garlic (Allium sativum), ginger (Zingiber officinale), neem seed (Azadracta indica), varnonia leaf (Vernonia amygdalina) and crouton leaf (Crouton macrostachya) as seed priming materials on malt barley. Three levels of each priming material (5%, 10% and 15 % concentration) were prepared and full sized malt barley seeds were soaked for 12hrs in these priming materials. Seed dressing chemical (Dynamic 400 FS), distilled water soaked seeds, and dry seeds were used as a control for the field experiment. Primed seeds with all concentrations of botanicals, including distilled water and dynamic dressing chemical had a significant enhancing effect on agronomic parameters of malt barley under both laboratory and field conditions except for the effect of ginger extract priming which negatively affected the agronomic parameters as compared to dry planted (untreated) seeds. However, there was clear variation among botanical extracts and this is depending on their concentration and types of used botanicals. Among the tested botanicals, all three levels of garlic extracts have a significant enhancing effect on all agronomic parameters and this was followed by the neem. From the result of this study, seed priming with naturally available plant materials were found to improve yield and yield components of malt barley where for this particular experiment, all levels of garlic performed best as compared to other priming materials.

Evaluation of Yield and Yield Components of Lentil Genotypes under Drought Stress

2009 ◽  
Vol 3 (4) ◽  
pp. 456-460 ◽  
Author(s):  
Sh. Jamaati-e- ◽  
M. Panahyan-e ◽  
A. Ebadi ◽  
Ahmad Tobeh
Keyword(s):  
Drought Stress ◽  
Yield Components ◽  
Yield And Yield Components

Seeding-date effects on yield, quality and maturity of safflower

1994 ◽  
Vol 74 (2) ◽  
pp. 261-266 ◽  
Author(s):  
H.-H. Mündel ◽  
R. J. Morrison ◽  
R. E. Blackshaw ◽  
T. Entz ◽  
B. T. Roth ◽  
...  
Keyword(s):  
Oil Content ◽  
Carthamus Tinctorius ◽  
Test Weight ◽  
Yield Reduction ◽  
Degree Days ◽  
Seeding Date ◽  
Early Maturing ◽  
Yield Quality ◽  
Maturity Degree ◽  
Accumulated Degree Days

Experiments were conducted for 4 yr at Lethbridge and Brooks, Alberta, and at Morden, Manitoba, to determine the effect of seeding date, cultivar (Saffire, S-208 and Cargill-3) and location on safflower (Carthamus tinctorius L.) yield, oil content, test weight and maturity; and the effect of accumulated degree–days (DD) on yield, oil content and test weight. The early-maturing cultivar, Saffire, produced the least variable yields across seeding dates. For locations and years where fall frosts did not occur before maturity, Cargill-3 produced good yields, even with late seeding; S-208 yielded less in similar situations; however, S-208 generally outyielded Saffire. Highest yields were obtained at Brooks by seeding in late April, at Lethbridge, by seeding in late April or early May. However, at both Alberta locations, Saffire could usually be seeded to mid-May without major yield reduction. At Morden, seeding during the third week of May provided optimum yields. Seeding date had little influence on oil content. Later seeding dates tended to reduce days to maturity and test weight. Safflower matured 3 wk earlier at Morden (earliest site) than at Lethbridge (latest site), with maturity at Brooks averaging 4–8 days earlier than at Lethbridge. Plants required more DD to reach maturity at Morden than at either Alberta location. DD was positively associated with yield of S-208 at both Lethbridge and Morden; for Saffire, only at Lethbridge; and for Cargill-3, only at Morden. DD generally did not significantly affect oil or test weight. Key words: Safflower, Carthamus, agronomy, seeding dates, yield, oil, test weight, maturity, degree–days

EFFECT OF RATE AND DATE OF SEEDING ON YIELD AND YIELD COMPONENTS OF TWO WINTER WHEAT CULTIVARS GROWN IN ONTARIO

1979 ◽  
Vol 59 (4) ◽  
pp. 939-943 ◽  
Author(s):  
A. E. SMID ◽  
R. C. JENKINSON
Keyword(s):  
Winter Wheat ◽  
Yield Components ◽  
Test Weight ◽  
Yield Reduction ◽  
Wheat Cultivars ◽  
Seeding Rate ◽  
Yield And Yield Components ◽  
Winter Wheat Cultivars

Two cultivars of soft white winter wheat, Fredrick and Yorkstar, were sown at rates of 34, 67, 101, 134 and 168 kg/ha on or near 24 Sept., 9 Oct. and 23 Oct. in each of the 3 yr 1973–1975, at Ridgetown, Ontario. Highest net yields were obtained with rate of seeding 134 kg/ha. Seeding rate did not affect lodging. Yield per hectare and spikes per hectare were positively correlated while kernels per spike and spikes per hectare were negatively correlated. However, as the rate of seeding was increased, the increase in the number of spikes per hectare was greater than the accompanying decrease in kernels per spike, resulting in a net overall increase in yield. Highest yields of Fredrick were obtained near 9 Oct. and those of Yorkstar near 24 Sept. Yields decreased more rapidly with delayed seeding when seeding rates were less than 134 kg/ha, especially with Yorkstar. Test weight of Yorkstar was low, especially when sown late. Fredrick yielded 3–25% more than Yorkstar. A delay in seeding beyond 9 Oct. resulted in a yield reduction of 23 kg/ha/day. Fredrick should be sown instead of Yorkstar when seeding is delayed beyond recommended dates of seeding.

scholarly journals Yield and Yield Components of Barley (Hordeum vulgare L.) in Relation to Sowing Times

1970 ◽  
Vol 15 ◽  
pp. 139-145 ◽  
Author(s):  
MZ Alam ◽  
SA Haider ◽  
NK Paul
Keyword(s):  
Hordeum Vulgare ◽  
Field Experiment ◽  
Key Words ◽  
Yield Components ◽  
Harvest Index ◽  
Hordeum Vulgare L ◽  
Sowing Time ◽  
Barley Cultivars ◽  
Key Words Barley ◽  
Yield And Yield Components

A field experiment was carried out to study the influence of sowing times on yield and yield components of barley (Hordeum vulgare L.). Seeds of four barley cultivars (BB 1, Karan 19, Karan 163 and Karan 351) were sown with four sowing times (5 November, 17 November, 29 November and 11 December). Most of the yield and yield components were significantly highest in 17 November sowing. Among the cultivars most of the characters showed their highest values in BB 1 and the lowest in Karan 19. Harvest index was found highest in Karan 351 and lowest in BB 1. Key words: Barley, Sowing time, Yield.   doi: 10.3329/jbs.v15i0.2154   J. bio-sci. 15: 139-145, 2007

scholarly journals MAPPING QTLS FOR YIELD AND YIELD COMPONENTS UNDER DROUGHT STRESS IN BREAD WHEAT (TRITICUM AESTIVUM L.)

2018 ◽  
Vol 16 (4) ◽  
pp. 4431-4453 ◽  
Author(s):  
S FATIMA ◽  
S K CHAUDHARI ◽  
S AKHTAR ◽  
M S AMJAD ◽  
M AKBAR ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Drought Stress ◽  
Bread Wheat ◽  
Yield Components ◽  
Triticum Aestivum L ◽  
Yield And Yield Components
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