Abstract
The effects of planting seedlings per hole on the rice matter production characteristics and lodging resistance were studied using the ideal japonica rice varieties Ri22 and Shennong 265 in 2012–2013. The main results were as follows:(1) Dry matter accumulation and total dry matter accumulation of Ri22 and Shennong 265 before or after heading increased with the increasing of seedlings per hole, the transport rate and contribution rate of stem and leaf showed the opposite trend.(2) There was a slight influence on internode bending moment and lodging index of Ri22 and Shennong 265 with different seedlings per hole. Internode bending moment decreased slightly with the increasing of seedlings per hole, the lodging index showed the opposite.(3) With the increasing of seedlings per hole, the effective panicles of Ri22 and Shennong 265 increased and the total grains per panicle decreased significantly, while seed setting rate and 1000-grain weight had little changed.(4) The yield of Ri22 and Shennong 265 increased slightly with the increasing of seedlings per hole. In order to achieve the unity of high yield and lodging resistance, the suitable density for Ri22 in Shenyang should be 2–4 seedlings per hole, and more than that density for Shennong 265.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
