Effects of plant density and different amounts of nitrogen on remobilization changes in yield of corn (Zea mays L.) S.C. 704

Subject Areas : agronomy

Mandana Sotodeh ¹ ( M.Sc. graduated student of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran )
Mojtaba AlaviFazel ² ( Associate Prof, Department of Agronomy, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran )

Received: 2020-09-25 Accepted : 2020-10-30 Published : 2020-09-21

Keywords: Grain yield, nitrogen, corn, Remobilization, Plant density,

Abstract :

To evaluate of the role of remobilization in yield of corn (S.C. 704)in conditions of change of density and nitrogen, this experiment was conducted as a factorial based on randomized complete block design with three replications in Ramhormoz city, southwest of Iran, during 2015-2016 cropping season. a factor consisted of plant density per square meter (8, 10 and 12) and another factor of pure nitrogen consumption (from 46% urea source) included 50, 100, 150 kg. ha-1.The results showed that the plant density and nitrogen fertilizer significant effect on grain yield, biological, remobilization, remobilization and contribution of current photosynthesis is. The highest grain yield (8090.4 kg. ha-1) of 8 plants per square meter and the lowest (6480.1 kg. ha-1) were obtained from 12 plant per square meter. The highest grain yield (8650.7 kg. ha-1) was obtained from 150 kg. ha-1 nitrogen fertilizer treatment and the lowest (6160.7 kg. ha-1) was obtained from 50 kg. ha-1nitrogen fertilizer treatment. Most current photosynthesis and remobilization and current photosynthesis contribution of 8 plants per square meter and 150 kg of nitrogen per hectare, respectively. Most remobilization of 8 plants per square meter (143.1 g.m-2), respectively. Overall, the experimental results showed that consumption of 150 kg / ha of pure nitrogen at a density of eight plants per square meter could increase grain yield by 46% compared to consumption of 50 kg / ha nitrogen and a density of 12 plants per square meter and improve corn production. 

References:

حاجی شرفی، غ، 1385 . بررسی اثرات برگزدایی و تراکم بر الگوی تجمع ماده خشک هیبرید ذرت رقم
در منطقه دزفول، پایاننامه کارشناسی ارشد زراعت. دانشگاه آزاد اسلامی واحد دزفول. 84 صفحه KARAJ700
-2 سیادت، ع. ا.، مدحج، ع.، و اصفهانی، م. 1392 . غلات. انتشارات جهاد دانشگاهی مشهد. 352 صفحه.
-3 علوی فاضل، م. 1394 . ارزیابی میزان انتقال مجدد به دانه ژنوتیپهای گندم نان و دوروم در واکنش به مقادیر
.5-17 :(28) نیتروژن. فصلنامه علمی پژوهشی فیزیولوژی گیاهان زراعی، دانشگاه آزاد اسلامی واحد اهواز. 7
-4 لک، ش.، نادری، ا.، سیادت، ع.، آینه بند، ا.، نورمحمدی، ق. و موسوی، س. ه. 1386 . تأثیر سطوح مختلف
آبیاری، نیتروژن و تراکم بوته بر عملکرد و اجزای عملکرد و انتقال مجدد مواد فتوسنتزی ذرت دانهای در شرایط
.14-1 :(42) آب و هوایی خوزستان. علوم و فنون کشاورزی و منابع طبیعی. 11
-5 مدحج، ع.، امام، ا.، و آینهبند، ا. 1390 . اثر سطوح نیتروژن بر میزان محدودیت مبدأ و الگوی توزیع مواد
:(3) فتوسنتزی به دانهی ژنوتیپهای گندم در شرایط تنش گرمای پایان فصل، نشریه پژوهشهای زراعی ایران. 9
.474-485
6- Alavifazel, M., Naderi, A., Emam, Y., Ayeneh Band, A., and Lak, SH. 2010.
Analysis of traits path effective on grain yield of maize hybrid single cross704 in
irrigation-off conditions at growth stages, pattern and plant density. The quarterly
Academic Journal of Crop Physiology – I.A.U. Ahvaz- Summer 2011 - 10.
7-Andrade, F.H., Calvino, P., Cirilo, A., and Barbieri, P. 2013. Yield response to
narrow rows depends on increased radiation interception. Agronomy of Journal. 94:
975-980.
8- Bruns, H.A., and Abbas, H.K. 2015. Ultra-high plant populations and nitrogen
fertility effects on corn in the Mississippi Valley. Agron Journal. 97:1136-1140.
9- Falihzade, F., Mojadam, M., and Lack, SH. 2013. The Effect of Source-Sink
Restriction and Plant Density Changes on the Role of Assimilate Remobilization in
Corn Grain Yield. International Journal of Agriculture and Crop Sciences. 5(20):
2459-2465.
10- Lopez, M., Bereny, A., HallA, J., and Trapani, N. 2014. Contribution of
Preanthesis photo assimilates to grain yield: Its relationship with yield in Argentnian
sunflower cultivars released between1930 to 1995. Filed Crop Research. 105:88-96.
11- Mahbubul Alam, M., Mainul Basher, M. D., Karim, A. and Rafiquel Islam, M.
2015. Effect of rate of nitrogen fertilizer and population density on the Yield and
Yield attributes of maize (Zea mays). Pakistan Journal of Biological Sciences.
6(20):1770-1773.
12- Moosavi, S. G., Seghatoleslami, M. J., and Moazeni, A. 2012. Effect of planting
date and plant density on morphological traits, LAI and forage corn (Sc. 370) yield
in second cultivation. International Research Journal of Applied and Basic Sciences.
3 (1): 57-63.
13- Nik khah kheibari, M., Khavari Khorasani, S., and Taheri, G.H. 2014. Effects of
plant density and variety on some of morphological traits, yield and yield

components of baby corn (Zea mays L.). International Research Journal of Applied
and Basic Sciences. 3 (10): 200-214.
14- Oikeh S.O., Itling, J.G, and Okoruwa, A.E. 2007. Nitrogen fertilizer management
effects on maize grain quality in the west African moist savanna. Crop Science. 38:
1056 -1061.
15- Palata, J. A., Kobata, T., Turner, N. C., and Fillery, I. R. 2008. Remobilization of
carbon and nitrojen in corn as influenced by postanthesis water deficits. Crop
Science. 34: 118-124.
16- Palled, Y.B., and Shenoy, H. 2003. Effect of nitrification inhibitors and time of
nitrogen application on hybrid maize. Agriculture Science Bangalore. 29: 19-20.
17- Papakosta, D. K., and Gagianas, A. A. 1991. Nitrogen and dry matter accumulation,
remobilization, and losses for Mediterranean wheat during grain filling. Crop Science
Society of America, Agronomy Journal. 83: 864–870.
18- Sadeghi, M. 2013. The determination of plant density on dry matter accumulation,
grain yield and yield components of maize hybrids, International Journal of
Agriculture and Crop Sciences. 5 (2): 109-114.
19- Uhart, S. A., and Andrade, F. H. 1995. Nitrogen deficiency in maize: II. Carbonnitrogen
interaction effects on kernel number and grain yield. Crop Science. 35:
1384-1389.
20- Weiss, E. A. 2000. Oil Seed Crops. Blackwell Science Ltd., UK.
21- Westgate, M.E., and Boyer, J.S. 2005. Carbohydrate reserves and reproductive
development at low lead water potential in maize. Crop Science. 25:762-769.
22- Yang, J., Jianhua, Z., Zhiqing, W., Qingsen, Z., and Wei, W. 2001.
Remobilization of carbon resewes in response to water deficit during grain filling of
rice. Field Crops Research. 71: 47-55.
23- Yazdani, M., Bahmanyar, M. A., Pirdashti, H., and Esmaili, M. A. 2009. Effect
of phosphate solubilization microorganisms and plant growth promoting
rhizobacteria on yield and yield components of corn. International Journal of
Biological and Life Sciences. 1: 2-7.