Published in Scientific Papers. Series A. Agronomy, Vol. LXIV, Issue 1
Written by Cristina Mihaela MARINCIU, Gabriela ŞERBAN, Indira GALIT, Vasile MANDEA
Grain characteristics regarding grain size and shape, such as: thousand kernel weigh, grain area, length, width, circularity, and test weight are important components of grain yield and quality in wheat. A set of 22 winter wheat varieties, which included old and new varieties and advanced breeding lines were tested across 2018-2019 and 2019- 2020, at NARDI Fundulea, to estimate the historic evolution of these features and the correlation of them with grain yield. Shape grain characteristics were analysed with Marvin seed analyser. ANOVA showed very significant differences both between varieties and between years. The thousand kernel weigh was positively correlated with other parameters of grain shape, such as: grain area, width, length and circularity. The year of release was negatively correlated with some grain parameters, such as length, circularity and positively correlated with yield. It is necessary to pay attention in breeding to increase grain size and weight, but only if this will not be associated with the correlated negative changes in the other components of yield, which might lead to a decrease in grain yield.
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