Abstract
Investigations were carried out from 2012 to 2016 in walnut germplasm block of Central Institute of Temperate Horticulture, Srinagar, Jammu and Kashmir to study the effect of training and pruning systems on various traits in walnut (Juglans regia L.). Grafted plants of walnut were planted during 2000–01. Walnut is a monoecious plant, but during investigation of floral traits, two genotypes were observed, that did not bear male catkins continuously from 2012 to 2015 and behaved as gynodioecious, but, produced negligible rudimentary catkins in 2016. There is no report in literature regarding this kind of behaviour in walnut. These plants can be important from breeding point of view, which is otherwise a very tedious job in walnut.
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