بررسی و مقایسه عملکرد ارقام پرتقال بر روی پایه های جدید

The First question of citrus gardeners in relation to establish gardens is which cultivar must be planted. To answer to this question and with regards to environmental conditions of mazandaran, this trial carried out in 3 regions of mazandaran :ketra and khorram-abad, in west as non- irrigated and irrigated, respectively and behsahr in east as irrigated with 3executors. The subjects was study and determining the best rootstock and stock combinations for above regions in viewpoint of qualitative and Yield. The current report is related to the second phase of project (reproductive growth)in behshahr. The subject of executing the project in two phase (vegetative and reproductive) was to reach to the convenient combination for above mentioned resent to 30 tones and also enhances. Yield from 15 tones at present to 30 tones and the qualitative yield will increase, finally we can conjoin to citrus exporters of the world that is a important subject of government. The trial was carried out as split plots in from of randomized complete block design in 3 replications. 6 cultivars of orange (washigton navel, mares, Thomson navel, moro, salivistana, Italian) were the main plots and 4 rootstocks(Yozo, shel. Mahalle,citromello, sore orange ) were the subplots. Trees were planted in 4*8 distance. Number of trees in each subplot and the total trees in the trial was 3 and 216, respectively. Trees were transplanted to the main field in 1375 and from 1357 to 1380 some traits such as tree height canopy width and stock diameter at 10 cm from stock recorded and results reported formerly. The second phase of the progect was from 1380 formerly. Traits recording and qualitative analyses were accomplished. Results of the second phase of project showed that: 1)Between cultivars, mares produced the greatest yield . 2)Between rootstocks, citromello had the most yield. 3) the interaction of cv. Mars * rootstock citromello yielded moro than the others. 4)mean fruit weight: V3P1 (cultivar Thomson Navel on rootstock citromello)had the greatest mean fruit weight. 5)T.A. content: V6P4 (cultivar Italian on rootstock sore orange) 6)T.S.S content: V3P3 (cultivar Thomson navel on rootstock shel mahalleh) produced the most T.S.S. 7)vitamin C content: V4P4 (cultivar Khooni moro on rootstock sore orange) had the most vit. C content. 8) TSS/TA ratio: V2P3 (cultivar mares on rootstock shel- mahalleh) had the highest ratio of TSS/TA

کلیدواژه ها:

مازندران ، بهشهر ، باغ مرکبات ، کترا ، پرتقال واشنگتن ، ناول ، مارس ، تامسون ناول ، خونی مورو ، سالوستیانا ، ایتالیایی ، فاصله کاشت ، عرض تاج ، قطر تنه ، عملکرد