scholarly journals Effect of plant population on yield and yield components of safflower cultivars in rainfed condition of Vidarbha region

2017 ◽  
Vol 8 (1) ◽  
pp. 66-69 ◽  
Author(s):  
P.C. UKE ◽  
S.C. VILHEKAR ◽  
E.R. VAIDYA
Keyword(s):  
Yield Components ◽  
Plant Population ◽  
Rainfed Condition ◽  
Yield And Yield Components

Effects of Plant Population on Sole-crop Cassava in Sierra Leone

1978 ◽  
Vol 14 (3) ◽  
pp. 239-244 ◽  
Author(s):  
W. Godfrey-Sam-Aggrey
Keyword(s):  
Sierra Leone ◽  
Yield Components ◽  
Dry Matter ◽  
Weight Ratio ◽  
Land Plant ◽  
Plant Population ◽  
Root Weight ◽  
Plant Populations ◽  
Sole Crop ◽  
Yield And Yield Components

SUMMARYEffects of plant population on mean yield and yield components of 2-year sole cassava crops were studied on Njala upland soils of Sierra Leone in two experiments. Increasing plant population of multi-shoot Cocoa cassava over 7000/ha decreased all the parameters studied except top/root weight ratio, which increased. The observed effects were attributed to competition for environmental resources, since area of land/plant unit decreased as plant population increased. The relations between plant populations and yields of fresh root and cortex dry matter were asymptotic, indicating that the respective yields were products of the vegetative phase of cropping.

scholarly journals Grain Yield and Yield Components of Quality Protein Maize Genotypes as Influenced by Irrigation and Plant Population in the Nigerian Savannah

2014 ◽  
Vol 6 (4) ◽  
pp. 166 ◽  
Author(s):  
B. M. Sani ◽  
I. U. Abubakar ◽  
A. M. Falaki ◽  
H. Mani ◽  
M. M. Jaliya
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Agricultural Research ◽  
Field Trials ◽  
Irrigation Scheduling ◽  
Plant Population ◽  
Growth And Yield ◽  
Quality Protein Maize ◽  
Research Station ◽  
Yield And Yield Components

An experiment was conducted to assess the yield and yield components of QPM genotypes to plant population under irrigated conditions in a semi arid ecology of Northern Nigeria. Field trials were conducted at the Irrigation Research Station, Institute for Agricultural Research, Kadawa (11° 39'N, 08° 20'E) and 500 m above sea level) during dry seasons 2007, 2008 and 2009 to study the effect of (Zea mays L.) genotypes (TZE-W Pop X 1368, EV-DT W99 STR and DMR-ESRW), four plant population (33333, 44444, 55555 and 66666 plants ha-1) and three irrigation scheduling (40, 60 and 80 centibars soil moisture tension) on the growth and yield of quality protein maize. A split plot design was used with combinations of genotypes and irrigation regimes assigned to the main plot and plant population assigned to the sub-plot. The treatments were replicated three times. The study revealed that genotype EV-DT W99 STR had significantly higher weight of ears per plant, cob length, cob diameter, number of rows per cob, 100 grain weight, grain yield, shelling percentage and harvest index than the other two genotypes used in the trial. Irrigating at 40 and 60 centibars significantly increased weight of ears per plant, while delayed irrigation significantly depressed total dry matter production. Based on the results obtained in this study, it can be concluded that the use of genotype EV-DT W99 STR, at 60 centibars irrigation scheduling and population of 55,555 plants ha-1 had resulted in good agro-physiological characters of QPM at Kadawa.

Influence of plant population on yield and yield components of irrigated sunflower in southern New South Wales

1979 ◽  
Vol 19 (100) ◽  
pp. 570 ◽  
Author(s):  
JA Thompson ◽  
IG Fenton
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Harvest Index ◽  
New South ◽  
New South Wales ◽  
Plant Population ◽  
South Wales ◽  
Matter Production ◽  
Wide Range ◽  
Yield And Yield Components

Three experiments conducted in the Murrumbidgee Irrigation Area of southern New South Wales examined the influence of plant population on the yield and yield components of irrigated sunflowers. Populations ranged from 25,000 plants ha-1 to 140,000 plants ha-1. Furrow irrigation was employed with rows spaced 76 cm apart. In two of the experiments the wide range of plant populations examined had little effect on seed yield. Individual seed weight (g 1000-1) and seed number per head interacted with plant population so that seed yield was only marginally affected. In the remaining experiment, insufficient total dry matter production without improved harvest index prevented the attainment of an acceptable seed yield. There was a consistent trend for harvest index to fall with increasing plant population. Values recorded ranged from 0.36 to 0.23. Plant population had little effect on oil percentage. A plant population of 50,000 plants ha-1 is suggested as a minimum recommendation for irrigated sunflowers in southern New South Wales.

Effects of Spacing, Sett Weight and Fertilizers on Yield and Yield Components in Yams

1974 ◽  
Vol 10 (1) ◽  
pp. 17-22 ◽  
Author(s):  
A. M. Gurnah
Keyword(s):  
Yield Components ◽  
Plant Density ◽  
Plant Population ◽  
Yield And Yield Components

SUMMARYThe effects of plant population on yield and its components were investigated in three experiments in 1969, 1970 and 1971. Increasing populations from 9000 to 36,000 plants/ha. increased yield linearly. The number of tubers produced per plant was not affected by population, but an increase in plant density decreased average tuber weights. Increasing sett weight from 203 to 608 gm increased tuber yields/ha. and the number of tubers per plant but did not affect average tuber weights in two experiments. In 1971 compound fertilizers increased yield up to the highest rates of 90 kg./ha. each of N, P2O5 and K2O respectively.

Sign in / Sign up

Export Citation Format

Share Document