Effects of sowing date on the process of allocation of material photosynthesis on yield in direct seeded rice cultivars

Subject Areas : New Finding in Agriculture

Mostafa Basharkhah ¹ , Alireza Valadabadi ² , Jahanfar Daneshian ³ , Abdolrahman Erfani ⁴

1 - دانش آموخته کارشناسی ارشد زراعت دانشگاه آزاد اسلامی واحد تاکستان
2 - دانشگاه آزاد اسلامی، واحد شهر قدس، گروه زراعت و اصلاح نباتات، شهر قدس، ایران
3 - دانشیار موسسه تحقیقات اصلاح و تهیه نهال و بذر کرج
4 - دانشگاه علوم کشاورزی و منابع طبیعی ساری، ایران

Received: 2015-12-01 Accepted : 2015-12-01 Published : 2011-02-20

Keywords: Grain yield, Rice, Sowing date, Direct seeding,

Abstract :

In order to evaluate of sowing date on phonology and panicle development of rice cultivars in direct seeding condition. Four seeding date as 30th of April and  10 , 20 , 30th of May  and three cultivars as Hashemi, Tarom and Elpaso were arranged in a split plot design as based on RCBD in 2007 with four replications. The results indicated that seeding date had significant effect on traits of productivity effort, days to panicle emergence, days to 50% panicle initiation, grain filling period, panicle weight and total plant dry weight.  The second sowing date with a 25.17 had the highest grain filling duration and had the highest operation in the amount of 5029 Kg/ha. All traits had affected by cultivar treatment. Tarom cultivar had the most seed filling duration (25.88 days) and highest yield in the amount of 4444 Kg/ha. Cultivars and planting date interaction was significant in days to ear emergence, days to 50% panicle initiation, panicle weight, total plant dry weight and productivity effort. Elpaso cv had the highest days to panicle emergence (93.75 days), days to 50% panicle initiation (101 days) in the first planting date. It produced the highest panicle weight (681 g.m-2) and total dry matter (1139 g.m-2) in the second planting date and it was superior in productivity effort (0.63) than others. Tarom cv had the highest grain filling duration (27.50 days). Elpaso cv had the highest assimilate partitioning, because it had the highest productivity effort and grain filling rate. Because the sowing dates was considered based on temperature and time of harvest, the best sowing date, the second sowing date and best cultivar, cultivar  Elpaso suggested. Because it have allocated the highest yield.

References:

1- اخگری، ح.1383. برنج ( زراعت، بازروئی، تغذیه ). انتشارات دانشگاه آزاد اسلامی رشت.481 صفحه.

2- سیادت، س. ع.، فتحی، ق.، صادق زاده حمایتی، س.  و بیرانوند، م. 1383. بررسی تاثیر تاریخ کاشت روی عملکرد و اجزای عملکرد شلتوک سه رقم برنج . مجله علوم کشاورزی ایران . جلد 35 . شماره 1 .صفحات 234-227..

3- دانشیان ، ج. 1384. تعیین بهترین آرایش کاشت هیبرید آذرگل آفتابگردان در کشت دوم. گزارش نهایی موسسه تحقیقات اصلاح و تهیه نهال و بذر. بخش تحقیقات دانه های روغنی.

4- عرفانی، ر. و نصیری، م.1385.  بررسی تاثیر تاریخ کاشت بر ویژگی های زراعی و عملکرد ارقام برنج در کشت مستقیم. گزارش نهایی موسسه تحقیقات برنج کشور .13 صفحه.

5- Cho , D. S., S. K. Jong ,Y.K. Park, and S.Y.Son.1988. Studieson the duration and rate of grain filling in rice .Korean Journal of Crop Science.33,1:5-11.

6- Dawe, D., 2005. Increasing water productivity in rice-based systems in Asia

past trends, current problems, and future prospects. Plant Prod Sci. 8:221–230.

7- Dingkuhn, M ., H.F. Schnier, S.K. Ddatta, E. Wijangkco, and K. Dorffling. 2007. developmental changes in canopy gas exchange in relation to growth in transplanted and direct seeded flooded rice. Australian Journal, 17(2):119-134.

8- Hayashi, S., A. Kamoshita, J.Yamgishi, A.Kotchasatit, and B.Jongdee.2007.Genotypic differences in grain yield of transplanted and direct seeded rainfed lowland rice in northern Thailand . Field Crops Research.102:9-21.

9- Kato, T. 1999. Genetic and environmental variations and associations of the characters related to the grain filling process in rice cultivars. Plant Production Science:2,1:32-36

10-Khakwani, A., Zubair, M., Mansoor, M., Navved, K., Hussain, I., Wahab, A., Ilyas, M. and Ahmad, I. 2006. Agronomic and morphological parameters of rice crop as affected by date of transplanting. Agronomy . J.5(2): 248-250.

11- Marambe, B .,and L. Amarasinghe .2001.Seedling growth and control of propanil-resistant barnyardgrass in lowland direct-seeded rice fields of Sri Lanka. International Rice Research Institute Notes.22.461-467.

12- Norman, R.J., N.A. Slaton, K.A.K. Moldenhauer, and D.L. Boothe. 2001. Influence of seeding date on the degree-day 50 thermal-heat unit accumulations and grain yields of new rice cultivars. University of Arkansas Agricultural Experiment Station Research Series 468:250-256.

13- Sirakumar , S.S., R. Manian ., and K. Kathirvel . 2003. An improved direct rice seeder. International Rice Research Institute Notes.vol 28.2:53-54.

24- Slaton, N. A., S. D. Linscombe, R. J. Norman, and E. E. Gbur.2003. Seeding date effect on rice grain yields in arkansas and louisiana. Agron. J. 95:218–223 .

15- Tuong, T. P., B. A. M. Bouman., M. Mortimer. 2005. More rice, less water integrated approaches for increasing water productivity in irrigated rice based systems in Asia. Plant Prod  Sci. 8: 231–241.

Scientific, Oxford, pp. 250-285.