Anhui Agricultural Science Bulletin >
2025 , Vol. 31 >Issue 17: 9 - 12
DOI: https://doi.org/10.16377/j.cnki.issn1007-7731.2025.17.003
Planting performance and high yield cultivation techniques of hybrid rice Wanyou 66 in Wuyishan
Received date: 2025-04-14
Online published: 2025-09-16
Wanyou 66 was a mid-late maturing three-line hybrid rice variety using the indica-type three-line sterile line Wan 8A as the female parent and the high quality, blast-resistant restorer line Wanhui 66 as the male parent. The characteristics and high yield cultivation techniques of this variety were introduced in the Wuyishan region of Fujian Province. From 2022 to 2024, multi-location demonstration and trial experiments of this variety were conducted in Wuyishan City. It was characterized by a suitable growth period, strong tillering ability, and uniform panicle structure in field cultivation. The yield ranged from 8 349.4 to 9 596.0 kg/hm². The variety exhibited resistance to rice blast and good lodging resistance, as well as a high head rice rate, good grain appearance, and desirable palatability. Its high yield cultivation techniques included selecting an appropriate sowing date (late April to early May) and adjusting the seeding rate according to different transplanting methods; cultivating strong seedlings through treatments such as chemical seed soaking, paclobutrazol application, and “farewell fertilizer and farewell pesticide” before transplanting; achieving reasonable planting density to establish an efficient population; implementing a fertilization strategy of “heavy base fertilizer, early topdressing, and supplemental panicle and grain fertilizer” combined with a water management model of “shallow water, sun-drying, and alternating wet and dry conditions” to promote tillering, panicle formation, and lodging resistance; applying pesticides such as 16% emamectin benzoate·indoxacarb at 150 g/hm² to control pests like the rice stem borer; and harvesting under sunny conditions when 90% of the panicles were mature. This study provides a reference for the promotion and cultivation of this variety in relevant regions.
Key words: hybrid rice; Wanyou 66; high yield cultivation; integrated pest management
CHENG Zhaoping , HE Niqing , LIU Junhua , LIN Shaojun , HUANG Fenghuang , HUANG Chengzhi , YANG Dewei . Planting performance and high yield cultivation techniques of hybrid rice Wanyou 66 in Wuyishan[J]. Anhui Agricultural Science Bulletin, 2025 , 31(17) : 9 -12 . DOI: 10.16377/j.cnki.issn1007-7731.2025.17.003
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