Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 4

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
Pistillate flower abortion (PFA) in walnuts is defined as the drop of female flowers with or without pedicles within 10–15 days after flowering. This situation is commonly observed in some walnut cultivars causes dramatic yield losses. ‘Şebin’ is a popular walnut cultivar among farmers in Turkey due to the quality of its fruit, yield and ease of marketability. However, in some orchards, established with this cultivar, has a fruitlessness problem. In the present study, the effects of Aminoethoxyvinylglycine (AVG, the commercial brand name is ReTain) (0, 62.5 and 125 ppm doses) and AVG plus GA3 (45, 135 and 270 ppm doses) treatments to prevent abortion in cv. ‘Şebin’ were investigated. The experiments were conducted in two different ecologies. The treatments were carried out just before the receptivity period of female flowers of cv. ‘Şebin’. The results showed that, the female flower abortion ratio of ‘Şebin’ walnut cultivar were 87.78% in Tokat ecology and 77.78% in Niksar ecology. The fruit set ratio by 125 ppm AVG treatment was determined to be 60.89% for Niksar and 57.56% for Tokat ecological conditions. The highest fruit set was obtained from 125 ppm AVG combined 270 ppm GA3 treatment and this ratio was determined to be 93.89% for Niksar ecological conditions whereas it was determined to be 83.33% for Tokat ecological conditions. As a result, it was found that AVG alone or in combination with GA3 is effective treatments in reducing female flower abortion for ‘Şebin’ walnut cultivar.
Turkey is one of the most important walnut producers in the world. The aim of this study to select superior walnut genotypes among the walnut seedling populations naturally grown in Gumushacikoy district of Amasya province located in Inner Anatolia between 2010–2011 years. In the study, a large number walnut genotypes in Inner Anatolia were screened according to selection criteria and after evaluation twenty promising walnut genotypes were selected as cultivar candidate among genotypes. The average fruit weights, kernel weights and kernel ratios were ranged from 8.93 to 13.92 g, 4.62 to 7.36 g and 47.80 to 58.98% among twenty promising walnut genotypes, respectively. Measurements of fruit dimensions showed that the average fruit length, width and heights were found between 42.80–29.97 mm; 25.73–34.77 mm and 28.86–33.85 mm, respectively. Considering 20 promising walnut selections, 11, 5 and 4 genotypes had been found protandry, protogyny and homogamy. The chemical analyses showed that protein, crude oil and ash contents of selected twenty walnut genotypes were between 13.75–19.69%; 44.08– 70.81% and 1.53–2.15%, respectively.
There are seed propagated walnut (Juglans regia L.) populations with the vast genetic variation in different part of Turkey. There are also lots of monoecious and dichogamous genotypes in Turkey due to continuing sexual propagation. This study was conducted to determine genetic variability and to select superior walnut genotypes within seedling population grown in Kemah district in Eastern Anatolia during 2009–2012. In the study over 25.000 walnut trees were examined with high heterozygosis from point of yield (lateral fruitfulness), tolerance to anthracnose, bacterial blight and nut quality parameters. The ratio of lateral fruitfulness of selected genotypes was ranged from 50 to 80%. Leafing time in selected genotypes are found medium group according to international well-known ‘Franquette’ cultivar that is late leafing characteristic. Nut weight, length, diameter (at suture) and shell thickness varied from 11.18 to 15.20 g, 32.55 to 36.62 mm, 31.58 to 36.15 mm and 1.11 to 2.33 mm, respectively. Kernel weight and percentage varied from 6.14 g to 8.00 g and 47.08 to 58.57%. Kernel fat and protein content were between 55.18 to 65.70% and 14.70 to 20.10%, respectively.
Pomegranate is one of the most important ancient fruit in Turkey where planting of pomegranate has increased rapidly in recent years. This study described desirable pomological and chemical traits of seventeen pomegranate genotypes selected from Narlidere district (Bitlis) in between 2010–2011 years. We found considerable variation on fruit weight, aril weight, fruit length and fruit width that important for pomegranate breeding ranged from 99.77 (N-15) to 515.97 g (N-05), 14.16 (N-01) to 41.92 g (N-10), 51.03 (N-15) to 90.99 mm (N-05) and 58.99 (N-03) to 103.11 mm (N-05) among genotypes, respectively. Chemical parameters are also considerable varied among genotypes and Soluble solid content (SSC), titratable acidity (TA), pH and juice yield of genotypes varied between 5.96 (N-02) to 9.13% (N-03), 0.12 (N-12) to 0.91% (N-14), 2.51 (N-14) to 4.52 (N-10) and 48.58 (N-06) to72.07% (N-01), respectively. Many genotypes were found to be promising both fresh consumption and processing. Promising genotypes indicate it’s importance as genetic resources and they have potential for future use in pomegranate breeding activities.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.