Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Doctorat → Egypte → STUDIES ON THE PRODUCTIVITY OF SQUASH (Cucurbita pepo L.) PLANTS UNDER SOME NEW AGRICULTURE TECHNIQUES

Ain Shams University (2021)

STUDIES ON THE PRODUCTIVITY OF SQUASH (Cucurbita pepo L.) PLANTS UNDER SOME NEW AGRICULTURE TECHNIQUES

HASSAN, YASMINE HASSAN ABDELMOHSEN.

Titre : STUDIES ON THE PRODUCTIVITY OF SQUASH (Cucurbita pepo L.) PLANTS UNDER SOME NEW AGRICULTURE TECHNIQUES

Auteur : HASSAN, YASMINE HASSAN ABDELMOHSEN.

Etablissement de soutenance : Ain Shams University

Grade : Doctor of Philosophy (PhD) in Agricultural Sciences 2021

Résumé
The experiment were carried out in open field and under low plastic tunnel at Kaha Research Station, Horticulture Research Institute (HRI), Agricultural Research Center (ARC), Ministry of Agriculture, Giza Governorate, Egypt during two successive growing seasons of 2015-2016 and 2016-2017 to evaluate the effect of grafting on productivity of squash grown in the open field and under low plastic tunnel. Each experiment contained two Squash hybrids, i.e. Aziad and Raad were grafted onto three rootstocks, i.e. Lagenaria siceraria (L.G), Cucurbita ficifolia (C.F) and Cucurbita moschata (C.M) plus self-grafted squash hybrid (control). The important obtained results are as follows : Grafting Aziad hybrid on Cucurbita moschata (C.M) rootstock which planted under low plastic tunnel conditions obtained the highest results of vegetative growth characters i.e., plant height, number of leaves per plant, leaf area, leaves dry weight and RWC % in the both seasons. The same results were obtained with the physical properties of fruit i.e. number of marketable fruits/ plant, weight of marketable fruits/ plant, number of female flowers/ plant and sex expression in both seasons and the highest number of male flowers/ plant obtained with Self-grafted plants of Raad hybrid in the open field in first season and by grafted Aziad hybrid on Cucurbita moschata (C.M) in the open field in second season. While the highest average fruit weight was given by grafted Aziad hybrid on Cucurbita ficifolia (C.F) in open field in the both seasons. On the other hand, the heaviest dry weight of 100g fresh fruits obtained with grafted Raad on Cucurbita moschata (C.M) under low plastic tunnel in first season and grafted Aziad on Cucurbita ficifolia (C.F) in open field in second season. In addition, the least results of number of unmarketable fruits/ plant and weight of unmarketable fruits/ plant were obtained with grafted Raad on Cucurbita moschata (C.M) in open field in the both seasons. The highest chemical results of fruit i.e. ascorbic acid (V.C) and TSS were obtained with Self-grafted plants of Aziad hybrid under low plastic tunnel conditions in the both seasons, while the highest total carbohydrates gained with grafted Aziad hybrid on Cucurbita moschata (C.M) rootstock which planted under low plastic tunnel conditions in the both seasons. The highest results of chemical properties i.e. total chlorophyll, proline, total free amino acids, Ca, N, P, and K were obtained from grafted Aziad hybrid on Cucurbita moschata (C.M) rootstock under low plastic tunnel conditions in both seasons. Similare results were recorded with phenols in the first season and with carotenoids in second season. The highest chlorophyll A obtained with the interaction between Aziad hybrid and Lagenaria siceraria (L.G) in open field in the first season and by grafted Aziad hybrid on Cucurbita moschata (C.M) in open field in the second season. Also, grafted Aziad hybrid on Cucurbita moschata (C.M) in open field gave the highest value of chlorophyll B.

Présentation étendue (EULC)

Page publiée le 24 avril 2022