Carya illinoensis variety-pollination variety-selection and fruit-character analysis method

Abstract

The invention discloses a carya illinoensis variety-pollination variety-selection and fruit-character analysis method. The carya illinoensis variety-pollination variety-selection and fruit-character analysis method comprises the following steps that (1) the blooming phenophase is observed, N strains of plants are selected in a base and serve as standard strains, east, south, west, and north directions of each strain of carya illinoensis are selected, and the carya illinoensis is observed and recorded at 9 am each day; (2) a receptible period test is carried out; (3) a compatibility test is carried out, superior trees, of carya illinoensis in Mahan variety, which grow well and give good fruits are selected as seed trees, the seed trees which are naturally pollinated are compared with the seed trees which are bagged and not pollinated, seven pollination combinations are arranged, 120 pistillate flowers of each combination are pollinated, and the pollination process are repeated three times; after the pollination process, when pistillate flower stigmas are all withered, paper bags are removed, and routine cultivation and management are carried out, and the fruit setting rate is surveyed once a month; after fruits are ripe, hybrid fruits are harvested, and the fruits are brought back to a laboratory, and the fruit character and the fruit quality are tested; and (4) the fruit quality is tested. By employing the carya illinoensis variety-pollination variety-selection and fruit-character analysis method, the yield of carya illinoensis can be risen, and the quality of carya illinoensis can be improved, and the development of the carya illinoensis industry can be promoted.

Description

technical field [0001] The invention belongs to the field of crop cultivation, and in particular relates to a method for selecting pollination varieties of pecan varieties with thin shells and analyzing their fruiting properties. Background technique [0002] Thin shell pecan (Carya illinoensis (Wangench.) K.Koch), also known as long pecan, American pecan, commonly known as longevity fruit, pecan, is a plant of the genus Carya (Carya Nutt) of the family Jugandaceae. An important woody oil tree species, and also a precious timber and greening tree species. [0003] Although thin-shell hickory nuts belong to monoecious plants, most varieties are dioecious. During the afforestation process, there is a single variety, and the flowering period is rare. There is no variety allocation or unreasonable allocation, which often results in serious fruit drop, low yield, poor fruit quality, Obvious problems such as big and small years have seriously restricted the popularization of this...

AI Technical Summary

Problems solved by technology

'Mahan' has good early high yield in the American origin, but its late stable yield is poor, and the index of big and small years is high, so its introduction and cultivation are controversial

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