Guangdong nongye kexue (Jun 2022)
Investigation and Analysis of Comprehensive Agronomic Traits of New Peanut Varieties in Guangzhou
Abstract
【Objective】New peanut varieties suitable for planting in Guangzhou were screened out to carry out fur tests in different planting areas within the province, which would provide a certain theoretical basis and reference for the large-scale promotion and application of the new varieties in the province.【Method】Taking Zhanyou 75 as a control, 11 new peanut varieties including Shanyou 121, Yueyou 905 and Fuhua 0945 were preliminarily tested at the Zhongluotan Peanut Test Base of Guangdong Academy of Agricultural Sciences in 2020. Then, the yield, adaptability and comprehensive agronomic traits of different peanut varieties were identified, and the characteristics and application value of these varieties were evaluated objectively.【Result】All the tested varieties had moderate or higher resistance to waterlogging, drought and lodging; the coefficient of variation of economic traits was between 0.66% and 51.75%. There was a very significant positive correlation between main stem height and branch length, total number of branches and number of fruiting branches, number of green leaves on the main stem at harvest, total number of fruits per plant, 100-fruit mass, 100-kernel mass and yield, and there was a very significant negative correlation between the number of green leaves on the main stem at harvest and the yield. Yield significance analysis showed that, compared with the control, the dry pod yields of Shanyou 121, Yueyou 905 and Fuhua 0945 increased by 5.57%, 1.70%, and 1.13%, respectively, and the variety differences didn't reach a significant level. The rest of the varieties all decreased in yield, among which the yield reduction rates of Qianyoufense and Qionghua 1104 were 32.47% and 38.92%, respectively, and the differences reached significant and extremely significant levels. Yield stability analysis showed that, compared with the control, the yield stability of Shanyou 121, Yueyou 905 and Guihua 66 was better, while that of Zhanyou 103, Quanhua 1417 and Qionghua 1104 was poor.【Conclusion】Combining the agronomic traits, biological characteristics and quality of all the tested peanut varieties, the two new varieties, Shanyou 121 and Yueyou 905, showed better comprehensive agronomic traits in Guangzhou, and could be tested in other areas of Guangdong Province for the screening of varieties suitable for large-scale promotion and application.
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