Abstract
Relevance and methods. The information on the influence of samples of chickpea sorts, time of planting the lines of chickpeas on seed infection with ascochytosis and on the weight of grain on one plant bush is presented in this article. Samples of chickpea sorts and lines were studied during the first sowing period — the first decade of March and the second sowing period — the third decade of March. Ascochytosis infection was evaluated in natural field conditions. The study was conducted at the Central Experimental Station of the Galaaral Research Institute of Grain and Leguminous Crops in 2015–2017 in Uzbekistan.Results. According to the three-year study, it was found that in the years when there was a lot of precipitation days, sorts Yulduz, ILC 263 and MП 2015/1 of the lines during the first sowing were determined to be infected with acochytosis up to 6 points. During the first sowing period of this cv., there was a decrease in the weight of grains on one plant bush compared to the second sowing period. Cv. ILC 3279, Umid and line 14442 were found to be virtually undamaged in natural field conditions with ascohitosis during both planting periods. It wasfound our that the weight of cv. Мustaqillik-20, line 14442 grain on one plant bush remained high during both planting periods.
Highlights
The information on the influence of samples of chickpea sorts, time of planting the lines of chickpeas on seed infection with ascochytosis and on the weight of grain on one plant bush is presented in this article
Samples of chickpea sorts and lines were studied during the first sowing period — the first decade of March and the second sowing period — the third decade of March
According to the three-year study, it was found that in the years when there was a lot of precipitation days, sorts Yulduz, ILC 263 and MП 2015/1 of the lines during the first sowing were determined to be infected with acochytosis up to 6 points
Summary
Оценка поражаемости аскохитозом сортов и линии нута в полевых условиях Узбекистана. В данной статье приведены данные о влиянии сроков посева сортов и линии нута на поражаемость аскохитозом и на массу зерна в одном растений. Образцы и линии нута высевали в первый срок — в первой декаде, второй срок — в третьей декаде марта и изучали поражаемость растений аскохитозом, оценивали в естественных полевых условиях. В результате трехлетних исследований отмечено, что при благоприятной погоде при первом сроке посеве у сортов Юлдуз, ILC 263 и линии MП 2015/1 поражаемость была выше (6 баллов), а масса зерна с одного растения снижалась по сравнению со вторым сроком посева. Сорта и линии ILC 3279, Умид и 14442 при обоих сроках мало поражались, у сорта Мустакиллик-20 и линии 14442 выявлено высокое значение показателя — масса зерна с одного растения.
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