Do you want to publish a course? Click here

The effect of deficit irrigation in the growth of some apple seedlings rootstocks

تأثير الري الناقص في نمو غراس بعض الأصول البذرية للتفاح

1485   0   18   0 ( 0 )
 Publication date 2014
  fields Groves
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

The present investigation was carried out at the Agricultural Scientific Research Center in Swieda to study the effect of deficit irrigation on the growth of four apple seedlings rootstocks genotypes and to estimate their ability to drought tolerance particularly in light of the lack of water sources and no rain. Two irrigation levels: 100% (control) and 75% of water requirements were applied. The shoot length, leaves number, leaves area, the distribution of the roots in soil, the depth of irrigation water in the soil and the consumption of water in each level were measured. Results showed that irrigation with 75% of field capacity on studied genotypes caused reduction of shoots length, decline of leaves number and area and the depth of root comparing with the control. There were significant differences between studied genotypes in terms of vigor where the genotypes C and S2 were superior than A and B.


Artificial intelligence review:
Research summary
نفذ البحث في مركز البحوث العلمية الزراعية في السويداء لدراسة تأثير الري الناقص على نمو غراس أربعة طرز من أصول التفاح البذرية لاختبار قدرتها على تحمل ظروف الجفاف. استخدم مستويان من الري: 100% من الاحتياج المائي (شاهد) و75% من الاحتياج المائي (معاملة ثانية). تم قياس طول الطرود، وعدد الأوراق، وطول وعرض الورقة، وتوزيع الجذور في التربة، والاستهلاك المائي عند كل مستوى ري. أظهرت النتائج أن الري بنسبة 75% من السعة الحقلية أدى إلى قصر طول الطرود وانخفاض عدد الأوراق ومساحتها في جميع الطرز المدروسة، وزاد تعمق الجذور مقارنة بمستوى الري 100% من السعة الحقلية. اختلفت الطرز المدروسة فيما بينها من حيث قوة النمو، إذ تفوق الطرازان C وS2 على الطرازين A وB. كما أظهرت النتائج أن الطراز S2 كان الأفضل في تشكيل الجذور تحت ظروف نقص ماء الري.
Critical review
دراسة نقدية: الدراسة تقدم معلومات قيمة حول تأثير الري الناقص على نمو غراس التفاح، ولكن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين المزيد من الطرز البذرية لزيادة تنوع العينة وتحسين دقة النتائج. ثانياً، لم يتم التطرق إلى تأثير الري الناقص على جودة الثمار، وهو جانب مهم يجب أخذه في الاعتبار في الدراسات المستقبلية. ثالثاً، كان من الممكن استخدام تقنيات ري حديثة مثل الري بالتنقيط المحسن لتقليل الفاقد المائي وزيادة كفاءة الري. وأخيراً، كان من الأفضل تضمين تحليل اقتصادي لتكلفة وفوائد استخدام الري الناقص مقارنة بالري الكامل.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي من الدراسة هو دراسة تأثير الري الناقص على نمو غراس أصول التفاح البذرية واختبار قدرتها على تحمل ظروف الجفاف.

  2. ما هي مستويات الري المستخدمة في الدراسة؟

    استخدمت الدراسة مستويين من الري: 100% من الاحتياج المائي (شاهد) و75% من الاحتياج المائي (معاملة ثانية).

  3. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    أظهرت النتائج أن الري بنسبة 75% من السعة الحقلية أدى إلى قصر طول الطرود وانخفاض عدد الأوراق ومساحتها، وزاد تعمق الجذور مقارنة بمستوى الري 100% من السعة الحقلية. كما تفوق الطرازان C وS2 على الطرازين A وB من حيث قوة النمو.

  4. ما هي التوصيات التي قدمتها الدراسة؟

    أوصت الدراسة باستخدام الطراز S2 في المناطق التي تعاني من نقص المياه نظراً لقدرة هذا الطراز على تشكيل الجذور تحت ظروف نقص ماء الري، مما يجعله مناسباً للزراعة في ظروف الجفاف.


References used
Atkinson, D. 1983. The growth, activity and distribution of the fruit tree root system, Plant and Soil Journal. 71: 23-35
Atkinson, C. J., M. Policarpo, A. D. Webster and A. M. Kuden. 1999. Drought Tolerance of Apple Rootstocks: Production and Partitioning of Dry Matter, Plant and Soil Journal. 206( 2):223-235
Connell, O. and M. G. Goodwin. 2007. Responses of 'Pink Lady' apple to deficit irrigation and partial rootzone drying: physiology, growth, yield, and fruit quality, Australian Journal of Agricultural Research. 58:1068-1076
rate research

Read More

Predicting crop yield response to irrigation level is increasingly important to optimize irrigation under limited available water and for enhancing sustainability and profitable production. This study was carried out to evaluate the performance of CropWat model in predicting deficit irrigation effect on cotton crop, and to explore some alternatives for cotton irrigation. Crop yield and water use data were collected from a 3-yr (2007-2009) field experiment to assess the response of drip-irrigated cotton to deficit irrigation (DI).
This study was carried out on a 17 years Vineyard (Helwani, Betamooni. Cvs) when the study started. Two deficit irrigation treatments were studied (%88, 60%), in addition to the control (full irrigation), and each treatment included three replicati ons. Drip irrigation technique was applied (one irrigation line for each tree line, and eight drippers for each tree). Fruit yield and sugar percentage were observed under different water treatments.
This study was carried out to compare the performance of the FAO AquaCrop and CropWat models in simulating the effects of deficit irrigation on cotton crop. The models were calibrated using data from the 2007 growing season of a field study conduc ted to assess deficit irrigation effects on cotton, whereas the models were validated by comparing their outputs for yield and water use (ETc) with the measured values of the two variables in the 2008 and 2009. The relationship between measured and predicted values of yield and ETc revealed that the AquaCrop was better than CropWat in predicting water stress impact on yield and ETc. The linear regression equation for AquaCrop had a small intercept and its slope was very close to unity. The index of agreement (d) was close to one for both models, except its value for ETc in the 2009 year. Both models could reproduce the general trend of the changes in soil water content in the different irrigation levels. Accordingly, the use of AquaCrop instead of CropWat should be encouraged for management and planning of irrigation, since it is a practitioner type model keeps a good balance between output accuracy and simplicity.
A field experiment was carried out in Hout research station- Agriculture research center in Swaida – General Commission For Scientific Research Agricultural during the growing season of 2015-2016 to study the effect of different levels of deficit i rrigation with different levels of town refuse compost (TRC)on some morphological parameters and the productivity of lettuce and compare it with the common mineral fertilizers. The experiment was designed as a split block design with three levels of irrigation, each level has four fertilizing treatments and control with three replicates. The research has studied the plant height (H), the number of its leaves (N) ,the leaf area (LAL), the plant's leaves area (LAP), the leaves area index (LAI), in addition to the lettuce head's fresh weight and the total productivity of the planted area. The irrigation and fertilizing interaction results indicate to the obvious positive effect of the organic additions on the productivity parameters and the efficiency of deficit irrigation, and the significant superiority of T11 treatment in all of the measured parameters in compare with the other treatments with an increased final yield of %169 comparing with T15 and % 428 comparing with T35. The results also indicate to the possibility of saving %25 of the consumed amount of irrigation water by using TRC instead of mineral fertilizer , and reveal that the organicmineral combination achieved a better yield with percentages of ( 29- 44 – 53 )% comparing with single mineral fertilizer in the three studied irrigation levels (T1-T2-T3) respectively. These results give the farmer a wide range of possibilities to choose what suits his available productivity needs , and a clear idea about the expected yield according to the chosen treatment.
The study was performed in Barshin Research Station- General Commission for Scientific Agriculture Research on the trees age of 13 in grafted with Golden Delicious Cultivar on three rootstocks (seedless rootstock Malus domestica, vegetative strong rootstock MM109, and MM111 half strong rootstock) over the years (2014.2015 ).The study focused on growth vigor (the stem circumference above the grafted area ,crown size - the rate of shoots length and productivity).

suggested questions

comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا