Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userCanonical Correlation Analysis for Understanding The Relationship Between Root and Shoot Morphological Traits in Barley Under Contrasting Moisture Stress Condition During Early Growth Stage
تحليل الارتباط القانوني لفهم العلاقة بين صفات المجموع الجذري و الهوائي للشعير ضمن ظروف متباينة من الإجهاد المائي خلال المرحلة الأولى من حياة النبات
1480
0 24
0
(
0
)
Authors
عدنان قنبر( باحث )
Created by
Shamra Editor
Ask ChatGPT about the research
يعد فهم العلاقة بين كل من النظام الجذري و الصفات المرتبطة بالأجزاء الهوائية لنبات الشعير، هـدفاً مهماً في برامج تربيته. و قد اِستُخدم تحليل الارتبـاط القـانوني analysis correlation Canonical بهدف دراسة قوة الارتباط بين صفات كل من المجموع الجذري و المجموع الهوائي ضمن ظروف الزراعة المروية و الإجهاد المائي في مرحلة البادرة بعمر 40 يوماً من جهة، و حددت الصفات الجذرية الأكثر تأثيراً في صفات المجموع الهوائي من جهة أخرى. أظهرت معظم الصفات المدروسة في هذا البحث انخفاضـاً معنوياً ضمن ظروف الإجهاد المائي ما عدا طول الجذور، حيث ازداد طول الجذور للنباتات زيادةً معنويـةً تحت الإجهاد المائي. و قد امتلكت كلُّ من صفتي طول الجذور و عددها التأثير الأكبر فـي الـوزن الجـاف للجزء الهوائي و طول النبات ضمن ظروف الزراعة المروية و الإجهاد المائي على حد سواء. كما أظهرت نتائج الإسهام التراكمي أن نحو 45 % من التباين الكلي في صفات المجموع الهوائي يعـود سـببه إلـى المجموع الجذري ضمن ظروف الزراعة المروية، و قد انخفضت نسبة الإسهام هـذه إلـى 41 % تقريبـاً ضمن ظروف الإجهاد المائي.
Understanding the relationship between root system and shoot related traits is an important objective in crop breeding programs. Canonical correlation analysis has been adopted to study the strength of association between the root morphological traits and shoot morphological traits under low-moisture stress and well-watered conditions and to find the root morphological characters that have the largest influence on shoot-related traits in seedling stage. Most of the traits under study revealed a significant reduction under low-moisture stress condition except root length which showed a significant increasing under the same condition. Root length and root number were had the largest effect on shoot dry weight and plant height under low-moisture stress and well-watered condition. The results of cumulative redundancy showed that about 45% of the total variability in the shoot-related characters is accounted for by the root morphological characters under control condition and this percentage reduced up to 41% under moisture stress.
References used
Bidinger, F. R. and Wilfcombe, J. R. (1989). Evaluation of specific drought avoidance as selection criteria for improvement of drought resistance. In: Drought resistance in cereals. (Eds.) Baker, F. W. G., CAB International, Wallingford, U.K, pp. 151-164
Blum, A. (1999). Towards standard assays of drought resistance in crop plants. In: Molecular approaches for the genetic improvement of cereals for stable production in water-limited environments. International workshop, June 1999, Cimmyt, Mexico, pp. 29–35
Gittins, R. (1985). Canonical Analysis, A Review with Applications in Ecology. Springer-Verlag, Berlin, pp. 56–85
rate research
Read More
This research uses canonical correlation analysis in the examination of the structure of mutual relationship between the components of population growth rate (birth, death and migration) and the levels of education and health in Syria.
Results prove
the existence of a strong relationship that is statistically significant between the components of rate of population growth and the educational and health levels. Death is strongly influenced by both levels while migration is strongly affected by the health level.
This study was carried out at Karahta Station of Field Crop
Research, General Commission of Agricultural Scientific Researches
during 2010-2011 and 2011-2012 cropping seasons in order to determine the
phenotypic correlation coefficient between the traits and the path coefficients
analysis for the most affected traits in grain yield.
The experiment was carried out during spring season 2016 to study the effect
of foliar spraying treatment with Tecamin Flower 2.5 ml/L in comparison with
distilled water, on growth of three hybrids of tomatoes at two different levels of
irrigation
(100 and 50 % of field capacity). Three sprays were conducted started
from flowering with two weeks’ interval. The results showed that ‘Finenss’ hybrid
had significant differences in plant height, branches per plant and leaves number per
plant. ‘Hadeer’ hybrid had superiority in dry matter ratio and content of chlorophyll
in leaves. Reducing the level of irrigation resulted in a significant decrease in
plant height, total branches number, versus an increase in the leaves number per
plant, total leaves area and the percentage of dry matter. The results showed that
the treatment with Tecamin flower led to a significant increase in all indicators
studied. The interaction treatments shoed that Hadeer hybrid irrigated in level 50
% and spraying of nutrient solution (Tecamin flower) had a significant increase in
dry matter ratio and chlorophyll content in leaves. While the hybrid Finenss which
irrigated in level 100 % with nutrient solution (Tecamin flower) had a significant
increase in leaves number per plant and total leaves area.
An experiment was conducted in Kharabo station which belongs to the
faculty of agriculture, Damascus university during the growing season 2009 !
2010, to evaluate the response of seventeen sorghum genotypes under water
stress conditions during the flowering stage according to the randomized
complete block design (RCBD), with three replicates.
This study was conducted at the farm of the Faculty of Agriculture in
Kharabo during 2011 2012 growing season. RCB design with two replicates was
used and the correlation and regression relationship among characters were
tested. Results showed tha
t plant and ear heights were both positively
correlated with some quantitative characters (number of kernels per row،
number of rows per ear, 100 kernel Wight, and kernels weight per ear).
Regression results also showed that the increase in plant and ear height was
associated with an increase in number of rows per ear, kernels weight per ear
and 100 kernel wight. It was concluded that plant height and/or ear height can
be used as a direct selection index for number of rows per ear, kernels weight
per ear and 100 kernel wight.
suggested questions
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
