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本文在牛奶葡萄果枝发育上,探索了与其自身生长势(粗度),枝条成熟度以及果穗重、浆果品质等等关系。研究结果表明:果枝粗度是衡量葡萄生长势的良好指标。在生长季中,各时期的果枝粗度间具有极密切的相关性;果枝粗壮,果穗的座果率就高,单穗重增加,大果穗所占的比例多,果实含糖量上升,含酸量下降。双穗果枝中,上下果穗大小和各自果穗中的果实发育不同。果枝成熟受果枝粗和果穗重双重影响,其中以粗度影响最大。河北宣化是我国葡萄老产区。宣化牛奶葡萄以外形美观、品质优良闻名于国内外。但由于宣化葡萄采用古老的漏斗大棚架栽培方式,冬前实行“老鸦爪”修剪,一般不进行更新,夏季管理粗放,造成架面郁蔽,通风透光差,病虫害发生严重。老蔓秃裸,新梢成熟差,结果部位迅速外移,致使大小年严重,牛奶葡萄产量和品质下降。为此,北农大葡萄组在宣化进行了改架试验,本试验是改架的一部分,目的在于通过对改架后牛奶葡萄果枝粗度对果枝及浆果生长发育影响的研究,提出若干指标,以供生产上参考。
In this paper, the development of the grape branch of the grape of milk was explored with its own growth potential (roughness), branch maturity and the weight of ears, berry quality and so on. The results show that: the fruit branch thickness is a good indicator of grape growth potential. In the growing season, the fruiting branches in each period had a very close correlation; the fruiting branches were thick, the fruit set rate was high, the single spike weight increased, the proportion of large ear spikes increased, and the sugar content increased Acid decreased. In the double-spike fruit branches, the size of the upper and lower ears and the fruit development in the respective ears are different. The fruiting branch ripening is affected by the twig thick and the spike weight, of which the roughness is the most important. Hebei Xuanhua is an old vineyard in China. Xuanhua milk grapes with beautiful appearance, good quality is famous at home and abroad. However, due to the old funnel scaffolding cultivation method adopted by Xuanhua grapes, the implementation of “Laopala claw” pruning before winter is generally not carried out and the extensive management in summer causes the shelter to be screened, the ventilation and light are poor, and pests and diseases seriously occur. The old Man bare, poor shoot mature, the results of parts of the rapid relocation, resulting in serious size, milk, grape yield and quality decline. To this end, North Peasants grape group in Xuanhua modified test, the test is a part of the modification, the purpose is to change the thickness of the grape branch after the fruit and berry fruit growth and development studies, put forward a number of indicators to For production on the reference.