Monitoring the Growth and Development of Cotton Plants Using Main Stem Node Counts

2003 ◽  
Vol 2 (8) ◽  
pp. 593-596 ◽  
Author(s):  
Umer Q. Khan
Keyword(s):  
Growth And Development ◽  
Main Stem ◽  
Stem Node ◽  
Cotton Plants

Concept for Monitoring the Growth and Development of Cotton Plants Using Main-Stem Node Counts

jpa ◽  
1992 ◽  
Vol 5 (4) ◽  
pp. 532-538 ◽  
Author(s):  
F. M. Bourland ◽  
D. M. Oosterhuis ◽  
N. P. Tugwell
Keyword(s):  
Growth And Development ◽  
Main Stem ◽  
Stem Node ◽  
Cotton Plants

scholarly journals STUDY OF REGULATORY ACTIVITY OF D. STRAMONIUM WATER EXTRACT IN COTTON CROPS

2020 ◽  
Vol 2 (10(79)) ◽  
pp. 61-64
Author(s):  
E. Kurbanova ◽  
I. Bobaev ◽  
M. Mahmudova ◽  
R. Zakirova
Keyword(s):  
Seed Germination ◽  
Aqueous Extract ◽  
Growth And Development ◽  
Water Extract ◽  
Datura Stramonium ◽  
Main Stem ◽  
Regulatory Activity ◽  
Germination Energy ◽  
Cotton Plants ◽  
Cotton Seeds

The effect of the aqueous extract of Datura stramonium on the germination and vigor of germination, on the growth and development, and also on the yield of cotton plants has been studied. The data obtained showed that the aqueous extract improved seed germination by 6.9% and germination energy by 5.5%. The growth of the main stem has increased, the onset of the budding phase, flowering and ripening of bolls has accelerated, the rate of opening of bolls has increased by 5-6 days. Treatment of cotton seeds with an experimental extract contributed to an increase in yield by 1.2 centners / hectare.

Evolutionary QTL-allele changes in main stem node number among geographic and seasonal subpopulations of Chinese cultivated soybeans

2021 ◽  
Author(s):  
Abbas Muhammad Fahim ◽  
Fangdong Liu ◽  
Jianbo He ◽  
Wubing Wang ◽  
Guangnan Xing ◽  
...  
Keyword(s):  
Main Stem ◽  
Node Number ◽  
Stem Node

QTL‐allele system of main stem node number in recombinant inbred lines of soybean ( Glycine max ) using association versus linkage mapping

2021 ◽  
Author(s):  
Abbas Muhammad Fahim ◽  
Liyuan Pan ◽  
Chunyan Li ◽  
Jianbo He ◽  
Guangnan Xing ◽  
...  
Keyword(s):  
Glycine Max ◽  
Recombinant Inbred ◽  
Linkage Mapping ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Main Stem ◽  
Node Number ◽  
Stem Node

Phase change in citrus: The effects of main stem node number, branch habit and paclobutrazol application on flowering in citrus seedlings

1994 ◽  
Vol 69 (1) ◽  
pp. 149-160 ◽  
Author(s):  
Angela M. Snowball ◽  
I. J. Warrington ◽  
Elizabeth A. Halligan ◽  
M. G. Mullins
Keyword(s):  
Phase Change ◽  
Main Stem ◽  
Node Number ◽  
Stem Node

Fababean (Vicia faba) in Australia's northern grains belt: canopy development, biomass, and nitrogen accumulation and partitioning

2002 ◽  
Vol 53 (2) ◽  
pp. 227 ◽  
Author(s):  
J. E. Turpin ◽  
M. J. Robertson ◽  
N. S. Hillcoat ◽  
D. F. Herridge
Keyword(s):  
Water Deficit ◽  
Vicia Faba ◽  
Extinction Coefficient ◽  
Plant Density ◽  
Main Stem ◽  
Growth And Yield ◽  
Canopy Development ◽  
Stem Node ◽  
Use Efficiency ◽  
Radiation Use

The growth and yield of fababean (Vicia faba) in temperate environments has been well described; however, information is lacking on the response of the crop to the higher temperature and radiation conditions of subtropical regions. Our aim in this study was to quantify fababean canopy development, radiation interception, radiation use efficiency, biomass partitioning, and nitrogen (N) accumulation and partitioning in a subtropical winter environment and to investigate if parameters describing these processes were consistent between temperate and subtropical regions. Two of the most important factors effecting growth patterns and yield in the field are crop density and water supply. Thus, 2 field experiments were conducted at Lawes, south-eastern Queensland, over 2 seasons, the first concentrating on the effect of plant density and the second on varying water deficit, both using the widely adapted cv. Fiord. Main-stem nodes appeared at the rate of one node every 54 degree-days (base temperature 0˚C), with no effect of plant density. With the addition of each main-stem node, plants produced a constant 5.22 leaves per node until the start of grain-filling, at which time assimilate became limiting. High plant density decreased both the number of leaves produced and the size of individual leaves on later formed branches. Radiation use efficiency values of 1.03–1.29 g/MJ were determined for plants grown under well-watered conditions, with a lower value (0.83 g/MJ) for a partly irrigated crop. The measured radiation extinction coefficient was 0.73 for leaf area index values ranging from 0.4 to 7.5, pooled across experiments and treatments. Leaf and stem were partitioned in equal proportions until pod set, and the root : shoot ratio was c. 0.8 at the beginning of pod set. The rate of increase in harvest index (HI) during pod filling was 0.012/day, except under fully irrigated conditions in 1999, when HI was much reduced, possibly due to pod shedding. Parameters such as the extinction coefficient, partitioning between leaf and stem, and rate of main-stem node appearance appeared to be quite conservative in response to density and water deficit, and were within the range of published values from temperate and Mediterranean environments. This is an encouraging outcome and suggests that it should be possible to simulate growth and yield of fababean across the diverse climate zones in which the crop is grown in Australia by using a single simulation model.

Growth and development of cold-injured cotton plants

1969 ◽  
Vol 31 (2) ◽  
pp. 365-373 ◽  
Author(s):  
J. V. Amin
Keyword(s):  
Growth And Development ◽  
Cotton Plants

Insecticides Do Not Affect Cotton (Gossypium hirsutum) Response to Imazaquin and Imazethapyr

Weed Science ◽  
1993 ◽  
Vol 41 (2) ◽  
pp. 269-280 ◽  
Author(s):  
Alan C. York ◽  
John W. Wilcut
Keyword(s):  
Gossypium Hirsutum ◽  
Growth And Development ◽  
Main Stem ◽  
Lower Percentage ◽  
Fresh Weight ◽  
Shoot Fresh Weight ◽  
Greenhouse Experiments ◽  
Organophosphate Insecticides ◽  
Stand Yield ◽  
Insecticide Control

Field and greenhouse experiments evaluated interactions of soil-applied insecticides and imazaquin and imazethapyr on growth and development of cotton. Imazaquin and imazethapyr were applied PPI at 0 to 6 and 0 to 16 g ae ha−1, respectively, in the greenhouse (plus a no-insecticide control), and 0 to 72 g ha−1in the field in combination with aldicarb, disulfoton, and phorate (without a no-insecticide control) applied in the seed furrow. Cotton shoot fresh weight in the greenhouse experiment decreased linearly as herbicide rates increased. Greater reductions in shoot fresh weight were noted with imazaquin than with imazethapyr. Compared with no insecticide, the methylcarbamate insecticide aldicarb and the organophosphate insecticides disulfoton and phorate did not affect cotton response to either herbicide. In the field, cotton injury increased while stand, yield, and maturity decreased as herbicide rates increased. Delayed maturity was due to a lower percentage of bolls produced on sympodia from main stem nodes four to nine. Imazaquin caused greater injury, greater reductions in stand, greater delays in maturity, and lower yields than did imazethapyr. Earlier maturity was noted with aldicarb-treated cotton. Compared with aldicarb, disulfoton and phorate did not alter cotton response to imazaquin or imazethapyr.

Main-Stem Node Removal Effect on Soybean Seed Yield and Composition

2009 ◽  
Vol 101 (1) ◽  
pp. 120-123 ◽  
Author(s):  
Shawn P. Conley ◽  
Palle Pedersen ◽  
Ellsworth P. Christmas
Keyword(s):  
Seed Yield ◽  
Soybean Seed ◽  
Main Stem ◽  
Stem Node ◽  
Node Removal

The distribution of Empoasca lybica (de Berg.) (Hemiptera, Cicadellidae) on cotton in the Sudan

1966 ◽  
Vol 56 (4) ◽  
pp. 635-647 ◽  
Author(s):  
D. E. Evans
Keyword(s):  
Correlation Coefficients ◽  
Side Branch ◽  
Main Stem ◽  
Similar Distribution ◽  
Leaf Vein ◽  
Cotton Plants ◽  
Empoasca Lybica ◽  
Number Of Leaves ◽  
Upper Third ◽  
Prominent Peak

The distribution on cotton plants of the eggs, nymphs and to a lesser extent the adults of Empoasca lybica (de Berg.) was studied on the varieties Bar XL1 and BAJ 7/57 in the Sudan during 1961–64. Counts of jassid nymphs in the process of hatching from eggs buried in the leaf veins showed that hatchlings were most numerous on the third to fifth expanded leaves from the main-stem apex and that most eggs had been laid either close to the point of insertion of the petiole into the leaf lamina or about half-way along the length of the veins on the underside of the leaves. The greatest number of hatchlings was found in the central leaf vein. It was concluded that eggs are most frequently laid in this position on newly expanded leaves at the apices of the main stems or side branches.The distribution of the early instars on the main-stem leaves was peaked, with maximum numbers occuring on or about the fifth expanded leaf from the apex; a similar distribution with a less prominent peak nearer to the apex leaf was found on side branches. The later instars, being more mobile, had a more even distribution. In the over-all distribution of nymphs on a typical cotton plant, a combination of the patterns found on main-stem and side-branch leaves, the greatest numbers of jassids occurred in the upper half or upper third of the plant. Co-variance analyses showed that the relation between numbers of jassids per zone and number of leaves per zone was not close and that the manner in which the plants were divided into zones for analysis of the relation greatly affected the correlation coefficients obtained.Regular counts of nymphs and adults on the upper surface of leaves throughout a period of two complete days showed that both nymphs and adults moved to the upper surface of leaves each day between 1400 and 1800 hr. local time and returned to the under surface at about 0300–0400 hr. Neither the environmental factor that stimulated this movement nor the way in which it benefited the insect was clear.

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